The best power banks and battery packs in the UK for reliable charging on the go, tested
It’s disempowering when your smartphone, laptop or other important gadget runs out of battery. With the flash of a graphic or a plaintive bleep, we lose a way to entertain ourselves, get things done, stay in touch or even get home safely. There’s a time and a place for a digital detox – but what is the time, and where am I?
Carrying a power bank is your ticket out of electronic oblivion. These pocket-sized cuboids plug into compatible devices and charge them, often via assorted connections, including USB-C and USB-A. Most power banks are made for charging smartphones and smaller gadgets, such as fitness trackers and earbuds, but some models can also charge power-hungrier laptops and large portable speakers.
More capable still (and pocketable only in the realms of fairytale), portable power stations can charge various high-voltage appliances – perfect for camping, garden parties and power cuts.
To find you the best power bank for your electrical exigencies, I put 17 top models through their paces, including options from Belkin, Anker, Cuktech, Iniu, Ugreen, Bluetti, Acer and EcoFlow.
Bear in mind that any particular power bank will only be suitable for charging compatible devices, based on its power output and connectivity. Before you buy one, check the specs against your smartphone or other devices.
Best power bank overall: Belkin BoostCharge Pro 3-port 20k
Best budget power bank: Belkin BoostCharge 10k with integrated cable
Best power bank for portability: Anker Nano
Best power bank for smartphones:Anker Nano A1638
Best power bank for speed and power: Cuktech 15 Ultra
Best high-storage power bank: Ugreen Nexode 25000mAh 200W
Best power bank for multiple users:Belkin UltraCharge Pro laptop power bank 27K
I’ve been reviewing tech products since the mid-2010s. When I’m not actually trying out gadgets, I’m often writing about them using my laptop, or discussing them with editors and PR contacts on my smartphone. As a result, I spend a lot of my time using portable, battery-powered electronic devices.
You might say I’m just the sort of person who needs a good power bank. I used all of the models featured in this article – even the power hat – while working on the go at libraries, cafes and on public transport. Not once did my laptop or smartphone run out of battery!
I tested 17 power banks by using them to charge various devices with different requirements, including:
Honor Magic7 Lite smartphone (battery 6,600mAh)
Honor Magic7 Pro smartphone (battery 5,270mAh)
Honor Magic8 Lite smartphone (battery 7,500mAh)
Honor Magic8 Pro (battery: 6,270mAh)
Acer Aspire Vero 16 laptop (53Wh battery; requires 65W)
Lenovo ThinkPad T16 laptop (52.5Wh battery; requires 65W)
I timed how long it took for each power bank to charge these devices by 30%. I only charged the laptop with suitably powerful power banks. You can read about the 14 best-performing power banks and chargers below.
Thanks to Honor and Acer for loaning us the smartphones and laptop for testing. The huge batteries on these devices meant there was a lot of waiting around between test charges. These days, flagship smartphones have a battery capacity of more than 3,500mAh. If you have an older or less flashy model, you may find its battery capacity is as low as 2,500mAh. We’ve given the popular Samsung Galaxy S25 as an example below, which has a battery capacity of 4,000mAh.
Some of the power banks have additional features, such as digital displays, integrated cables and control buttons. I tested these extras where present and also considered the portability and aesthetics of each model.
Some brands didn’t want their power banks back after testing. Those models will be donated for fundraising to Cat Action Trust 1977, a small national charity dedicated to the welfare of feral cats.
Belkin
BoostCharge Pro 3-port 20k
from £79.99
What we loveGreat for both phones and laptops
What we don’t loveNot the quickest to recharge
If you need a highly capable power bank that can recharge your laptop as well as your smartphone, this model is a fine choice. Across three charging ports (one USB-A and two USB-C), there’s a combined power output of up to 65W – more than sufficient to charge two smartphones at once.
Why we love itIn my tests, the BoostCharge Pro topped up an Acer laptop at the sort of speeds I’d normally expect from a mains-powered charger. And it was no slouch for charging smartphones, nor when I plugged in two devices at once.
The power bank is a stout, minimalist device, and considering it can store up to 20,000mAh of charge, it’s impressively lightweight. It’s a great choice for throwing into a purse or bumbag.
The BoostCharge Pro’s digital display activates at the press of a button to show its storage level and outputs. The metrics are slightly less detailed than those displayed by some rival laptop power banks, but the information is presented clearly and includes a useful countdown timer that indicates how soon the power bank will run out of power.
It’s a shame that … the onscreen metrics are slightly less detailed than on rival models, but the information is presented clearly.
Weight: 378gConnections: USB-C (x 2); USB-AOutput wattage: up to 65W (total)Capacity: 20,000mAh (approx 5 charges of a Samsung Galaxy S25) Time to charge Honor Magic7 Lite smartphone (30%): 45minsTime to charge Honor Magic7 Pro smartphone (30%): 31mins 30secsTime to charge Acer Aspire Vero 16 laptop (30%): 25mins 30secs
Belkin
BoostCharge Pro 3-port 20k
from £79.99
What we loveGreat for both phones and laptops
What we don’t loveNot the quickest to recharge
Belkin
BoostCharge 10k with integrated cable
from £13.99
What we loveImpressive performance and quality for the price
What we don’t loveModest charging performance
It’s hard to believe this is a cheap option. The BoostCharge Power Bank 10k has a premium-feel soft finish and speedily charges smartphones, earbuds and other lower-powered devices via its USB-C outlets.
Why we love itNeatly proportioned and impressively light compared with some of its rivals, this is one of those rare power banks that you could happily carry in a jacket pocket. Thanks to the integrated USB-C connector, you don’t even need to remember a cable.
It’s a shame that … charging two devices at once reduces the maximum total output from 20W to 15W, so single-device charging is considerably quicker.
Weight: 218gConnections: integrated USB-C cable; USB-C portOutput wattage: up to 20WCapacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25)Time to charge Honor Magic7 Lite smartphone (30%): 42mins 45secsTime to charge Honor Magic7 Pro smartphone (30%): 36mins 45secs
Belkin
BoostCharge 10k with integrated cable
from £13.99
What we loveImpressive performance and quality for the price
What we don’t loveModest charging performance
Anker
Anker Nano
from £16.99
What we loveIngenious, ultra-compact design
What we don’t lovePower storage is on the lower side
Fast, convenient and small enough to carry in a trouser pocket, the Nano is ideal for a quick top-up of a smartphone or earbuds. For me, no other power bank strikes the same balance between charging speed and portability. If your phone never quite makes it to the end of the day, the Nano is for you.
Why we love itThe Nano is minimalistic, but its features are well realised. I’m a big fan of its fold-out USB-C connector, which you can use to plug the power bank directly into your phone. Not only is this a neat charging solution, but it also rules out the risk of charging being impaired by a faulty or below-spec cable (each one has a maximum current and voltage). That said, if you’re attached (pun intended) to your cable, there’s also a regular USB-C port on the side of the power bank.
There are a few limitations, the main one being the result of its size. Its 5,000mAh storage capacity is sufficient for giving most smartphones a good top-up, but it might not be enough to fully charge the device.
It’s a shame that … you’d need something more powerful to charge your laptop.
Weight: 102gConnections: foldable USB-C connector; USB-C portOutput wattage: up to 22.5WCapacity: 5,000mAh (approx 1.25 charges of a Samsung Galaxy S25)Time to charge Honor Magic7 Lite smartphone (30%): 24minsTime to charge Honor Magic7 Pro smartphone (30%): 23mins 15secs
Anker
Anker Nano
from £16.99
What we loveIngenious, ultra-compact design
What we don’t lovePower storage is on the lower side
Anker
Nano A1638
from £35.99
What we loveCrams plenty of storage into a small package
What we don’t loveNot suitable for charging laptops
Released in 2025, this Nano A1638 model is one of Anker’s latest compact power banks, and it takes the brand’s outstanding product design to new heights with a slick, sheeny finish and a seamlessly integrated digital display.
Why we love itThis little power bank packs a winning combination of handbag-friendly portability and charging capability. If you use a smartphone professionally, this palm-sized block will make an ideal daily companion.
You can charge up to three devices at once. The retractable USB-C output cable extends to a generous 70cm. It became my go-to for tabletop charging, while the additional USB-C and USB-A ports provide further capability, provided you have the right cables to hand.
I wouldn’t recommend this power bank for charging a laptop, as many need a more powerful charger, but the Anker A1638 is perfect for topping up smartphones, tablets and smaller accessories such as headphones. You’ll probably get about two smartphone charges per cycle.
It’s a shame that … the product information text printed on the back of the power bank wears away easily through repeated use – so make a note of the model name for future reference.
Weight: 232gConnections: USB-C (x 2); USB-AOutput wattage: up to 45W (total)Capacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25)Time to charge Honor Magic8 Pro smartphone (30%): 50mins Time to charge Honor Magic8 Lite smartphone (30%): 17mins 45secs
Anker
Nano A1638
from £35.99
What we loveCrams plenty of storage into a small package
What we don’t loveNot suitable for charging laptops
What we loveCharges devices rapidly
What we don’t loveOnscreen characters are difficult to read
This power bank was difficult to test – it charged devices so exceptionally quickly that I struggled to get to my stopwatch in time.
Why we love it The Cuktech 15 Ultra is light years ahead of the competition in terms of charging speeds, and with three ports (two USB-C, one USB-A) delivering up to 210W, there’s incredible potential to charge multiple high-energy devices. Its 20,000mAh capacity is enough to charge the average smartphone at least three times – or give your laptop battery a significant top-up.
With great power comes somewhat lower portability – this is undeniably a weighty power bank. For users who prefer to pack light, that may be a deal-breaker. Still, the 15 Ultra is a well-made, smart-looking device. The TFT display provides lots of detail on the power bank’s battery level and charging status, and you can use it with the control button to configure each port to act as a power input, output or both. You get nice accessories, too: a 3.2ft charging cable, plus a soft carry case to keep the power bank safe.
It’s a shame that … the characters on the TFT display are small, which won’t be ideal for users with impaired vision.
Weight: 595gConnections: USB-C (x 2); USB-AOutput wattage: up to 210WCapacity: 20,000mAh (approx 5 charges of a Samsung Galaxy S25)Time to charge Honor Magic7 Pro smartphone (30%): 10mins 30secsTime to charge Honor Magic7 Lite smartphone (30%): 15minsTime to charge Acer Aspire Vero 16 laptop (30%): 26mins 15secs
Cuktech
15 Ultra
£59.99
What we loveCharges devices rapidly
What we don’t loveOnscreen characters are difficult to read
Ugreen
Nexode 25,000mAh 200W
from £52.99
What we loveCharming user interface and powerful charging
What we don’t loveIt’s a little cumbersome
Rapid charging, impressive capacity and a welcome sprinkling of geek appeal come together in the Ugreen Nexode power bank, which is designed to charge laptops, smartphones and other portable devices at up to 140W. The connections are simple but powerful: a pair of USB-C ports (140W and 100W), and a USB-A port that’s best reserved for charging lower-powered gadgets.
Why we love itThe Nexode was labelled as a “fast-charging” power bank, which added some pressure during the testing process, but it passed with flying colours – it charged my test laptop and smartphones at impressive rates. It also has a touch of charm, courtesy of the robot animation that welcomes you to its digital display. For the whimsical among us, these things matter.
There’s lots of intel on the screen, including voltage and wattage output metrics for each of the charging ports, which provide helpful evidence that connected devices are charging effectively. Rubber strips on the base of the power bank help it to stay securely in place on a tabletop.
It’s a shame that … the shape and weight of this power bank make it relatively cumbersome. It will fit inside a backpack or satchel, but you’d probably want something more compact for a handbag or bumbag.
Weight: 588g Connections: USB-C ports (x 2), USB-A portOutput wattage: up to 145W Capacity: 25,000mAh (approx 6.25 charges of a Samsung Galaxy S25) Time to charge Honor Magic8 Pro smartphone (30%): 18mins 45secsTime to charge Honor Magic8 Lite smartphone (30%): 21mins 30secsTime to charge Lenovo ThinkPad T16 laptop (30%): 24mins 45secs
Ugreen
Nexode 25,000mAh 200W
from £52.99
What we loveCharming user interface and powerful charging
What we don’t loveIt’s a little cumbersome
Belkin
UltraCharge Pro laptop power bank 27K
from £149.99
What we loveCan charge two laptops at once
What we don’t loveSpartan display lacks detailed info
Built for professionals, the Belkin UltraCharge Pro laptop power bank’s two USB-C outputs can deliver charge at a combined 240W, meaning this power bank can charge two laptops at the same time. This sets the UltraCharge Pro apart in professional contexts where multiple team members need a top-up – or during family trips when there might be some competition over power bank access.
Why we love itAs a freelance writer who likes to flounce about at cafes, libraries and the like, I greatly appreciated this potent power bank’s laptop charging prowess. It rapidly topped up my energy-hungry Lenovo ThinkPad, allowing me to continue working without plugging into the wall and adding to a small business’s electricity bill. The UltraCharge Pro was reasonably quick at charging smartphones, too, although it’s a little bulky to carry for this purpose alone.
I was extremely impressed with how quickly this model recharged from the mains. It receives input wattage at up to 100W, meaning it can take less than a few hours to replenish.
It’s a shame that … the digital display doesn’t give feedback on metrics such as battery temperature and port usage.
Weight: 584gConnections: USB-C (x 2); USB-AOutput wattage: up to 240W (total)Capacity: 27,000mAh (approx 6.75 charges of a Samsung Galaxy S25) Time to charge Honor Magic8 Pro smartphone (30%): 21mins 20secsTime to charge Honor Magic8 Lite smartphone (30%): 33mins 20secsTime to charge Lenovo ThinkPad T16 laptop (30%): 17mins 45secs
Belkin
UltraCharge Pro laptop power bank 27K
from £149.99
What we loveCan charge two laptops at once
What we don’t loveSpartan display lacks detailed info
Iniu
SnapGo magnetic power bank P781
£54.99
What we loveUltra-slim and ideal for smartphone charging
What we don’t loveRecharging is quite slow
Best for: magnetic iPhone charging
When I went backpacking in the North Pennines and the Yorkshire Dales, this is the power bank I chose to sling into my rucksack. It’s so slim and lightweight that it required no perceptible effort to carry, and using it to quickly power up my phone ensured I could keep using my navigation app while walking through low clouds.
The SnapGo attaches magnetically to compatible phones and charges them wirelessly. This worked a treat with my friend’s iPhone 14.
The supplied USB-C cable clips on to the power bank and doubles as a finger loop when you don’t need it for charging – a neat touch.
It didn’t make the final cut because … this power bank was quite slow to recharge from the mains, relative to its storage capacity.
Weight: 210g; connections: Qi2 wireless charging (for compatible devices only), USB-C ports (x2, with one USB-C cable); output wattage: up to 25W (wireless), up to 45W (wired); capacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25); time to charge Honor Magic8 Pro smartphone (30%): 26mins 45secs; time to charge Honor Magic8 Lite smartphone (30%): 27mins
Iniu
SnapGo magnetic power bank P781
£54.99
What we loveUltra-slim and ideal for smartphone charging
What we don’t loveRecharging is quite slow
Bluetti
AC50B portable power station
from £239
What we loveSuitable for charging a vast range of electronic devices
What we don’t loveIts features are probably excessive for many users
Best for: high-power portable charging
This portable power station has more ports than you can shake a USB stick at. Two USB-C outputs and a USB-A output cater for your lower-powered devices, and there are DC and AC power outlets, too; the latter accepting a regular three-pronged UK power plug. With a total maximum power output of 700W (rising to 1,000W when using the AC50B’s power-lifting mode, which is useful, briefly, for power-intensive applications, such as boiling a kettle) and a 448Wh storage capacity, it will power garden parties, camping trips or even renovation work in an off-grid home.
I was thoroughly impressed with the AC50B during testing. It charges devices rapidly; the interface is simple with just three buttons to master; and the “cut-out” moulded handle makes it easy to carry the 6.7kg power station to its destination.
It didn’t make the final cut because … most buyers won’t need something so powerful or feature-rich.
Weight: 6.7kg; connections: 700W AC outlet, USB-C port (x 2), USB-A port, 120W “cigarette lighter” port; output wattage: up to 1,000W (lifting) or 700W (continuous); capacity: 448Wh (equivalent to 89,600mAh when charging one device at 5V; approx 22 charges of a Samsung Galaxy S25); time to charge Honor Magic7 Lite smartphone (30%): 24mins 45secs; time to charge Honor Magic7 Pro smartphone (30%): 24mins; time to charge Acer Aspire Vero 16 laptop (30%): 30mins
Bluetti
AC50B portable power station
from £239
What we loveSuitable for charging a vast range of electronic devices
What we don’t loveIts features are probably excessive for many users
Acer
600W portable power station
£499.99
What we loveCapable and user-friendly
What we don’t loveThe very high price
Best for: powering devices in the garden
Simple, user-friendly and equipped with enough storage and connectivity to run or recharge numerous energy-intensive devices, the Acer 600W is a great pick to power your picnics and camping trips. Relative to other products of its type, this model is reasonably light, and the fold-down carry handle distributes its weight nicely.
The integrated strip LED at the top of the front panel is a nice touch – perfect for outdoor entertaining after dark, or for visibility during a power cut. Two DC5521 sockets are provided so you can charge the power station via solar panel.
It didn’t make the final cut because … its price is too high for a lot of users.
Weight: 7.35kg; connections: AC outlet (x2); USB-A (x 2); USB-C (x 2); “cigarette lighter” port; DC5521 DC socket (x 2); output wattage: up to 600WCapacity: 512Wh (equivalent to 102,400mAh when charging one device at 5V; approx 25.6 charges of a Samsung Galaxy S25); time to charge Honor Magic7 Lite smartphone (30%): 45mins 45secs; time to charge Honor Magic7 Pro smartphone (30%): 47mins 15secs; time to charge Acer Aspire Vero 16 laptop (30%): 30mins
Acer
600W portable power station
£499.99
What we loveCapable and user-friendly
What we don’t loveThe very high price
Anker
Solix PS30 portable solar panel
from £39
What we loveEco-friendly charging on bright days
What we don’t loveDoesn’t replace a power bank for everyday use
Best for: on-the-go solar charging
Anker has been making portable solar panel chargers for over a decade, and the devices have come a long way. The PS30 is the best model I’ve had the pleasure of unfurling across the lawn on a hot May afternoon, incorporating four solar panels and a charging hub with USB-A and USB-C ports for your devices (up to 30W). In clear, bright conditions, it could charge smartphones in around double or triple the time it took a decent power bank to do the same job. In my view, that makes it a valid alternative for users who value economic, low-environmental-impact charging over raw speed.
Two carabiners are included, so you can clip the panel to your hiking rucksack via its grommets. But in my view, the PS30’s ideal calling is to keep a phone and smart speaker topped up during an outdoor get-together.
It didn’t make the final cut because … while useful and impressive, this device is less versatile than a power bank, as it doesn’t store charge and won’t work without sunlight. Charging times varied wildly in my tests, especially when clouds appeared.
Weight: 1.1kg; connections: USB-C port, USB-A port; output wattage: up to 30W (total); capacity: no storage; time to charge Honor Magic8 Pro smartphone (30%): ~8hrs; time to charge Honor Magic8 Lite smartphone (30%): 1hr
Anker
Solix PS30 portable solar panel
from £39
What we loveEco-friendly charging on bright days
What we don’t loveDoesn’t replace a power bank for everyday use
EcoFlow
Rapid Magnetic 10,000mAh
from £85.99
What we loveSuper-stylish enclosure and display
What we don’t loveFewer connections than the average competitor
Best for: eye-catching design
This chic new power bank from EcoFlow is the perfect partner for a much-loved phone, with a USB-C output and magnetic charging via the speedy Qi2 protocol. It charged smartphones quickly in tests, and also proved capable of giving a laptop an emergency top-up (which soon drained its battery).
Power banks are generally practical items rather than pleasing objects – but the Rapid is both. I enjoyed its mirror-finish display, which pairs in retro-futuristic fashion with pixellated read-outs on the power bank’s charge status, input and output. There’s also a fold-out “kickstand” that keeps your phone upright during charging, which could come in handy for watching films on the train.
It didn’t make the final cut because … it’s not as versatile as some similar-spec models.
Weight: 258g; connections: Qi2 magnetic; USB-C connector; output wattage: up to 30W; capacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25); time to charge Honor Magic7 Lite smartphone (30%): 25mins 30secs; time to charge Honor Magic7 Pro smartphone (30%): 21mins
EcoFlow
Rapid Magnetic 10,000mAh
from £85.99
What we loveSuper-stylish enclosure and display
What we don’t loveFewer connections than the average competitor
What we loveFun for festivals, picnics and summer strolls
What we don’t loveNot a practical choice for day-to-day charging
Best for: charging devices at a festival
Who needs mains electricity when you can charge up your smartphone via headwear instead? The delightfully eccentric Power Hat from EcoFlow conceals an array of solar panels within its brim, and these power a USB-C and USB-A charger underneath. When the sun is shining, you can plug in your smartphone and give it a top-up.
I waited for a mild spring day to test the hat’s charging capabilities. Compared with a conventional power bank, charging was slow – but when you’re relaxing outdoors, that may not matter much. Using solar means you’ll save money on electricity, and the hat’s UPF 50+ sun and UV protective material will help keep you safe while you’re at it.
It didn’t make the final cut because … its charging performance is highly weather-dependent – and this is a UK publication.
Weight: 370g; connections: USB-C; USB-A; output wattage: STC12W (+/-1W); capacity: no storage; time to charge Honor Magic7 Lite smartphone (30%): 2hrs 51mins; time to charge Honor Magic7 Pro smartphone (30%): 1hr 47mins 45secs
EcoFlow
Power Hat
from £99
What we loveFun for festivals, picnics and summer strolls
What we don’t loveNot a practical choice for day-to-day charging
There are a few crucial specs to consider when you’re choosing a power bank. The wattage tells you how much power it can deliver, so it needs to match the requirements of your laptop, smartphone or other gadgets. Voltage is equally important. If a power bank has multiple ports for charging devices simultaneously, check both the maximum power output per port and the total output when charging several devices at once. Higher-wattage power banks are typically heavier, bulkier and more expensive, as they require greater battery capacity and cooling capability.
A power bank’s inputs and outputs are also crucial. Most power banks feature ports that connect to devices (or to a mains outlet to receive charge) via USB-C or USB-A. Some models can also charge compatible devices – especially smartphones – wirelessly. And for Apple device users, certain power banks feature a Lightning cable and port.
Capacity (mAh) tells you how much electrical charge the power bank can hold in its onboard lithium-ion battery. If a smartphone has a 6,000mAh battery and your power bank holds 20,000mAh, then you should be able to charge the phone fully at least three times without running out of power.
Like all devices that use lithium-ion batteries, power banks gradually lose capacity over time. A full charge and discharge counts as one cycle, and most power banks are rated for about 300 to 1,000 cycles. Depending on how often you use your power bank, that could mean anything from a year to several years. It’s no coincidence that power bank warranties typically top out at about two years.
Good usage habits can preserve the condition of your power bank’s lithium-ion battery, therefore extending its lifespan. Very-low or very-high charge levels put the most stress on batteries, so try to keep your power bank moderately charged most of the time. It’s also best to avoid storing your power bank in very hot, cold or humid places.
Avoid putting old electrical items in the rubbish bin – in particular, any products that contain lithium-ion batteries, due to the risk of a lithium battery fire.
Instead, take your power bank to a local recycling centre, where it can be sorted into a WEEE (Waste Electrical and Electronic Equipment) bin. Materials such as lithium, cobalt and nickel can then be removed from the power bank and used in the production of other items. For guidance or to find a recycling centre, head to Recycle Your Electricals.
For more, read our guide to the best camping mattresses and the best camping chairs
Pete Wise is a journalist with more than a decade’s experience covering everything from global development and social causes to technology and music. He has written extensively on portable tech, including laptops, smart speakers and drones – one of which he misplaced in the skies over a West Yorkshire village. Reviewing power banks was a natural fit for Pete’s days out of the house as a remote worker, as he charged from bus to train, to library, to coffee shop
Read the full story at The Guardian ↗
Power banks are portable batteries that connect to smartphones, laptops and other devices via USB-C, USB-A or wireless connections to provide additional charge. The Guardian's technology journalist tested 17 models from various manufacturers by using them to charge multiple devices with different battery capacities and power requirements. Models tested included compact options designed for quick smartphone top-ups and larger units capable of charging laptops. Key performance metrics measured were charging speed to 30% capacity, weight, connection types and output wattage across simultaneous charges. Prices ranged from approximately £14 to £500 depending on capacity and intended use case. The review notes that consumers should verify a power bank's wattage and port compatibility against their specific devices before purchasing. Lithium-ion batteries used in power banks typically remain functional for 300–1,000 full charge cycles, with lifespan influenced by storage conditions and charge levels. Depleted power banks should be taken to recycling centres to recover materials like lithium, cobalt and nickel.
Read the full story at The Guardian ↗
It’s disempowering when your smartphone, laptop or other important gadget runs out of battery. With the flash of a graphic or a plaintive bleep, we lose a way to entertain ourselves, get things done, stay in touch or even get home safely. There’s a time and a place for a digital detox – but what is the time, and where am I?
Carrying a power bank is your ticket out of electronic oblivion. These pocket-sized cuboids plug into compatible devices and charge them, often via assorted connections, including USB-C and USB-A. Most power banks are made for charging smartphones and smaller gadgets, such as fitness trackers and earbuds, but some models can also charge power-hungrier laptops and large portable speakers.
More capable still (and pocketable only in the realms of fairytale), portable power stations can charge various high-voltage appliances – perfect for camping, garden parties and power cuts.
To find you the best power bank for your electrical exigencies, I put 17 top models through their paces, including options from Belkin, Anker, Cuktech, Iniu, Ugreen, Bluetti, Acer and EcoFlow.
Bear in mind that any particular power bank will only be suitable for charging compatible devices, based on its power output and connectivity. Before you buy one, check the specs against your smartphone or other devices.
Best power bank overall: Belkin BoostCharge Pro 3-port 20k
Best budget power bank: Belkin BoostCharge 10k with integrated cable
Best power bank for portability: Anker Nano
Best power bank for smartphones:Anker Nano A1638
Best power bank for speed and power: Cuktech 15 Ultra
Best high-storage power bank: Ugreen Nexode 25000mAh 200W
Best power bank for multiple users:Belkin UltraCharge Pro laptop power bank 27K
I’ve been reviewing tech products since the mid-2010s. When I’m not actually trying out gadgets, I’m often writing about them using my laptop, or discussing them with editors and PR contacts on my smartphone. As a result, I spend a lot of my time using portable, battery-powered electronic devices.
You might say I’m just the sort of person who needs a good power bank. I used all of the models featured in this article – even the power hat – while working on the go at libraries, cafes and on public transport. Not once did my laptop or smartphone run out of battery!
I tested 17 power banks by using them to charge various devices with different requirements, including:
Honor Magic7 Lite smartphone (battery 6,600mAh)
Honor Magic7 Pro smartphone (battery 5,270mAh)
Honor Magic8 Lite smartphone (battery 7,500mAh)
Honor Magic8 Pro (battery: 6,270mAh)
Acer Aspire Vero 16 laptop (53Wh battery; requires 65W)
Lenovo ThinkPad T16 laptop (52.5Wh battery; requires 65W)
I timed how long it took for each power bank to charge these devices by 30%. I only charged the laptop with suitably powerful power banks. You can read about the 14 best-performing power banks and chargers below.
Thanks to Honor and Acer for loaning us the smartphones and laptop for testing. The huge batteries on these devices meant there was a lot of waiting around between test charges. These days, flagship smartphones have a battery capacity of more than 3,500mAh. If you have an older or less flashy model, you may find its battery capacity is as low as 2,500mAh. We’ve given the popular Samsung Galaxy S25 as an example below, which has a battery capacity of 4,000mAh.
Some of the power banks have additional features, such as digital displays, integrated cables and control buttons. I tested these extras where present and also considered the portability and aesthetics of each model.
Some brands didn’t want their power banks back after testing. Those models will be donated for fundraising to Cat Action Trust 1977, a small national charity dedicated to the welfare of feral cats.
Belkin
BoostCharge Pro 3-port 20k
from £79.99
What we loveGreat for both phones and laptops
What we don’t loveNot the quickest to recharge
If you need a highly capable power bank that can recharge your laptop as well as your smartphone, this model is a fine choice. Across three charging ports (one USB-A and two USB-C), there’s a combined power output of up to 65W – more than sufficient to charge two smartphones at once.
Why we love itIn my tests, the BoostCharge Pro topped up an Acer laptop at the sort of speeds I’d normally expect from a mains-powered charger. And it was no slouch for charging smartphones, nor when I plugged in two devices at once.
The power bank is a stout, minimalist device, and considering it can store up to 20,000mAh of charge, it’s impressively lightweight. It’s a great choice for throwing into a purse or bumbag.
The BoostCharge Pro’s digital display activates at the press of a button to show its storage level and outputs. The metrics are slightly less detailed than those displayed by some rival laptop power banks, but the information is presented clearly and includes a useful countdown timer that indicates how soon the power bank will run out of power.
It’s a shame that … the onscreen metrics are slightly less detailed than on rival models, but the information is presented clearly.
Weight: 378gConnections: USB-C (x 2); USB-AOutput wattage: up to 65W (total)Capacity: 20,000mAh (approx 5 charges of a Samsung Galaxy S25) Time to charge Honor Magic7 Lite smartphone (30%): 45minsTime to charge Honor Magic7 Pro smartphone (30%): 31mins 30secsTime to charge Acer Aspire Vero 16 laptop (30%): 25mins 30secs
Belkin
BoostCharge Pro 3-port 20k
from £79.99
What we loveGreat for both phones and laptops
What we don’t loveNot the quickest to recharge
Belkin
BoostCharge 10k with integrated cable
from £13.99
What we loveImpressive performance and quality for the price
What we don’t loveModest charging performance
It’s hard to believe this is a cheap option. The BoostCharge Power Bank 10k has a premium-feel soft finish and speedily charges smartphones, earbuds and other lower-powered devices via its USB-C outlets.
Why we love itNeatly proportioned and impressively light compared with some of its rivals, this is one of those rare power banks that you could happily carry in a jacket pocket. Thanks to the integrated USB-C connector, you don’t even need to remember a cable.
It’s a shame that … charging two devices at once reduces the maximum total output from 20W to 15W, so single-device charging is considerably quicker.
Weight: 218gConnections: integrated USB-C cable; USB-C portOutput wattage: up to 20WCapacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25)Time to charge Honor Magic7 Lite smartphone (30%): 42mins 45secsTime to charge Honor Magic7 Pro smartphone (30%): 36mins 45secs
Belkin
BoostCharge 10k with integrated cable
from £13.99
What we loveImpressive performance and quality for the price
What we don’t loveModest charging performance
Anker
Anker Nano
from £16.99
What we loveIngenious, ultra-compact design
What we don’t lovePower storage is on the lower side
Fast, convenient and small enough to carry in a trouser pocket, the Nano is ideal for a quick top-up of a smartphone or earbuds. For me, no other power bank strikes the same balance between charging speed and portability. If your phone never quite makes it to the end of the day, the Nano is for you.
Why we love itThe Nano is minimalistic, but its features are well realised. I’m a big fan of its fold-out USB-C connector, which you can use to plug the power bank directly into your phone. Not only is this a neat charging solution, but it also rules out the risk of charging being impaired by a faulty or below-spec cable (each one has a maximum current and voltage). That said, if you’re attached (pun intended) to your cable, there’s also a regular USB-C port on the side of the power bank.
There are a few limitations, the main one being the result of its size. Its 5,000mAh storage capacity is sufficient for giving most smartphones a good top-up, but it might not be enough to fully charge the device.
It’s a shame that … you’d need something more powerful to charge your laptop.
Weight: 102gConnections: foldable USB-C connector; USB-C portOutput wattage: up to 22.5WCapacity: 5,000mAh (approx 1.25 charges of a Samsung Galaxy S25)Time to charge Honor Magic7 Lite smartphone (30%): 24minsTime to charge Honor Magic7 Pro smartphone (30%): 23mins 15secs
Anker
Anker Nano
from £16.99
What we loveIngenious, ultra-compact design
What we don’t lovePower storage is on the lower side
Anker
Nano A1638
from £35.99
What we loveCrams plenty of storage into a small package
What we don’t loveNot suitable for charging laptops
Released in 2025, this Nano A1638 model is one of Anker’s latest compact power banks, and it takes the brand’s outstanding product design to new heights with a slick, sheeny finish and a seamlessly integrated digital display.
Why we love itThis little power bank packs a winning combination of handbag-friendly portability and charging capability. If you use a smartphone professionally, this palm-sized block will make an ideal daily companion.
You can charge up to three devices at once. The retractable USB-C output cable extends to a generous 70cm. It became my go-to for tabletop charging, while the additional USB-C and USB-A ports provide further capability, provided you have the right cables to hand.
I wouldn’t recommend this power bank for charging a laptop, as many need a more powerful charger, but the Anker A1638 is perfect for topping up smartphones, tablets and smaller accessories such as headphones. You’ll probably get about two smartphone charges per cycle.
It’s a shame that … the product information text printed on the back of the power bank wears away easily through repeated use – so make a note of the model name for future reference.
Weight: 232gConnections: USB-C (x 2); USB-AOutput wattage: up to 45W (total)Capacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25)Time to charge Honor Magic8 Pro smartphone (30%): 50mins Time to charge Honor Magic8 Lite smartphone (30%): 17mins 45secs
Anker
Nano A1638
from £35.99
What we loveCrams plenty of storage into a small package
What we don’t loveNot suitable for charging laptops
What we loveCharges devices rapidly
What we don’t loveOnscreen characters are difficult to read
This power bank was difficult to test – it charged devices so exceptionally quickly that I struggled to get to my stopwatch in time.
Why we love it The Cuktech 15 Ultra is light years ahead of the competition in terms of charging speeds, and with three ports (two USB-C, one USB-A) delivering up to 210W, there’s incredible potential to charge multiple high-energy devices. Its 20,000mAh capacity is enough to charge the average smartphone at least three times – or give your laptop battery a significant top-up.
With great power comes somewhat lower portability – this is undeniably a weighty power bank. For users who prefer to pack light, that may be a deal-breaker. Still, the 15 Ultra is a well-made, smart-looking device. The TFT display provides lots of detail on the power bank’s battery level and charging status, and you can use it with the control button to configure each port to act as a power input, output or both. You get nice accessories, too: a 3.2ft charging cable, plus a soft carry case to keep the power bank safe.
It’s a shame that … the characters on the TFT display are small, which won’t be ideal for users with impaired vision.
Weight: 595gConnections: USB-C (x 2); USB-AOutput wattage: up to 210WCapacity: 20,000mAh (approx 5 charges of a Samsung Galaxy S25)Time to charge Honor Magic7 Pro smartphone (30%): 10mins 30secsTime to charge Honor Magic7 Lite smartphone (30%): 15minsTime to charge Acer Aspire Vero 16 laptop (30%): 26mins 15secs
Cuktech
15 Ultra
£59.99
What we loveCharges devices rapidly
What we don’t loveOnscreen characters are difficult to read
Ugreen
Nexode 25,000mAh 200W
from £52.99
What we loveCharming user interface and powerful charging
What we don’t loveIt’s a little cumbersome
Rapid charging, impressive capacity and a welcome sprinkling of geek appeal come together in the Ugreen Nexode power bank, which is designed to charge laptops, smartphones and other portable devices at up to 140W. The connections are simple but powerful: a pair of USB-C ports (140W and 100W), and a USB-A port that’s best reserved for charging lower-powered gadgets.
Why we love itThe Nexode was labelled as a “fast-charging” power bank, which added some pressure during the testing process, but it passed with flying colours – it charged my test laptop and smartphones at impressive rates. It also has a touch of charm, courtesy of the robot animation that welcomes you to its digital display. For the whimsical among us, these things matter.
There’s lots of intel on the screen, including voltage and wattage output metrics for each of the charging ports, which provide helpful evidence that connected devices are charging effectively. Rubber strips on the base of the power bank help it to stay securely in place on a tabletop.
It’s a shame that … the shape and weight of this power bank make it relatively cumbersome. It will fit inside a backpack or satchel, but you’d probably want something more compact for a handbag or bumbag.
Weight: 588g Connections: USB-C ports (x 2), USB-A portOutput wattage: up to 145W Capacity: 25,000mAh (approx 6.25 charges of a Samsung Galaxy S25) Time to charge Honor Magic8 Pro smartphone (30%): 18mins 45secsTime to charge Honor Magic8 Lite smartphone (30%): 21mins 30secsTime to charge Lenovo ThinkPad T16 laptop (30%): 24mins 45secs
Ugreen
Nexode 25,000mAh 200W
from £52.99
What we loveCharming user interface and powerful charging
What we don’t loveIt’s a little cumbersome
Belkin
UltraCharge Pro laptop power bank 27K
from £149.99
What we loveCan charge two laptops at once
What we don’t loveSpartan display lacks detailed info
Built for professionals, the Belkin UltraCharge Pro laptop power bank’s two USB-C outputs can deliver charge at a combined 240W, meaning this power bank can charge two laptops at the same time. This sets the UltraCharge Pro apart in professional contexts where multiple team members need a top-up – or during family trips when there might be some competition over power bank access.
Why we love itAs a freelance writer who likes to flounce about at cafes, libraries and the like, I greatly appreciated this potent power bank’s laptop charging prowess. It rapidly topped up my energy-hungry Lenovo ThinkPad, allowing me to continue working without plugging into the wall and adding to a small business’s electricity bill. The UltraCharge Pro was reasonably quick at charging smartphones, too, although it’s a little bulky to carry for this purpose alone.
I was extremely impressed with how quickly this model recharged from the mains. It receives input wattage at up to 100W, meaning it can take less than a few hours to replenish.
It’s a shame that … the digital display doesn’t give feedback on metrics such as battery temperature and port usage.
Weight: 584gConnections: USB-C (x 2); USB-AOutput wattage: up to 240W (total)Capacity: 27,000mAh (approx 6.75 charges of a Samsung Galaxy S25) Time to charge Honor Magic8 Pro smartphone (30%): 21mins 20secsTime to charge Honor Magic8 Lite smartphone (30%): 33mins 20secsTime to charge Lenovo ThinkPad T16 laptop (30%): 17mins 45secs
Belkin
UltraCharge Pro laptop power bank 27K
from £149.99
What we loveCan charge two laptops at once
What we don’t loveSpartan display lacks detailed info
Iniu
SnapGo magnetic power bank P781
£54.99
What we loveUltra-slim and ideal for smartphone charging
What we don’t loveRecharging is quite slow
Best for: magnetic iPhone charging
When I went backpacking in the North Pennines and the Yorkshire Dales, this is the power bank I chose to sling into my rucksack. It’s so slim and lightweight that it required no perceptible effort to carry, and using it to quickly power up my phone ensured I could keep using my navigation app while walking through low clouds.
The SnapGo attaches magnetically to compatible phones and charges them wirelessly. This worked a treat with my friend’s iPhone 14.
The supplied USB-C cable clips on to the power bank and doubles as a finger loop when you don’t need it for charging – a neat touch.
It didn’t make the final cut because … this power bank was quite slow to recharge from the mains, relative to its storage capacity.
Weight: 210g; connections: Qi2 wireless charging (for compatible devices only), USB-C ports (x2, with one USB-C cable); output wattage: up to 25W (wireless), up to 45W (wired); capacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25); time to charge Honor Magic8 Pro smartphone (30%): 26mins 45secs; time to charge Honor Magic8 Lite smartphone (30%): 27mins
Iniu
SnapGo magnetic power bank P781
£54.99
What we loveUltra-slim and ideal for smartphone charging
What we don’t loveRecharging is quite slow
Bluetti
AC50B portable power station
from £239
What we loveSuitable for charging a vast range of electronic devices
What we don’t loveIts features are probably excessive for many users
Best for: high-power portable charging
This portable power station has more ports than you can shake a USB stick at. Two USB-C outputs and a USB-A output cater for your lower-powered devices, and there are DC and AC power outlets, too; the latter accepting a regular three-pronged UK power plug. With a total maximum power output of 700W (rising to 1,000W when using the AC50B’s power-lifting mode, which is useful, briefly, for power-intensive applications, such as boiling a kettle) and a 448Wh storage capacity, it will power garden parties, camping trips or even renovation work in an off-grid home.
I was thoroughly impressed with the AC50B during testing. It charges devices rapidly; the interface is simple with just three buttons to master; and the “cut-out” moulded handle makes it easy to carry the 6.7kg power station to its destination.
It didn’t make the final cut because … most buyers won’t need something so powerful or feature-rich.
Weight: 6.7kg; connections: 700W AC outlet, USB-C port (x 2), USB-A port, 120W “cigarette lighter” port; output wattage: up to 1,000W (lifting) or 700W (continuous); capacity: 448Wh (equivalent to 89,600mAh when charging one device at 5V; approx 22 charges of a Samsung Galaxy S25); time to charge Honor Magic7 Lite smartphone (30%): 24mins 45secs; time to charge Honor Magic7 Pro smartphone (30%): 24mins; time to charge Acer Aspire Vero 16 laptop (30%): 30mins
Bluetti
AC50B portable power station
from £239
What we loveSuitable for charging a vast range of electronic devices
What we don’t loveIts features are probably excessive for many users
Acer
600W portable power station
£499.99
What we loveCapable and user-friendly
What we don’t loveThe very high price
Best for: powering devices in the garden
Simple, user-friendly and equipped with enough storage and connectivity to run or recharge numerous energy-intensive devices, the Acer 600W is a great pick to power your picnics and camping trips. Relative to other products of its type, this model is reasonably light, and the fold-down carry handle distributes its weight nicely.
The integrated strip LED at the top of the front panel is a nice touch – perfect for outdoor entertaining after dark, or for visibility during a power cut. Two DC5521 sockets are provided so you can charge the power station via solar panel.
It didn’t make the final cut because … its price is too high for a lot of users.
Weight: 7.35kg; connections: AC outlet (x2); USB-A (x 2); USB-C (x 2); “cigarette lighter” port; DC5521 DC socket (x 2); output wattage: up to 600WCapacity: 512Wh (equivalent to 102,400mAh when charging one device at 5V; approx 25.6 charges of a Samsung Galaxy S25); time to charge Honor Magic7 Lite smartphone (30%): 45mins 45secs; time to charge Honor Magic7 Pro smartphone (30%): 47mins 15secs; time to charge Acer Aspire Vero 16 laptop (30%): 30mins
Acer
600W portable power station
£499.99
What we loveCapable and user-friendly
What we don’t loveThe very high price
Anker
Solix PS30 portable solar panel
from £39
What we loveEco-friendly charging on bright days
What we don’t loveDoesn’t replace a power bank for everyday use
Best for: on-the-go solar charging
Anker has been making portable solar panel chargers for over a decade, and the devices have come a long way. The PS30 is the best model I’ve had the pleasure of unfurling across the lawn on a hot May afternoon, incorporating four solar panels and a charging hub with USB-A and USB-C ports for your devices (up to 30W). In clear, bright conditions, it could charge smartphones in around double or triple the time it took a decent power bank to do the same job. In my view, that makes it a valid alternative for users who value economic, low-environmental-impact charging over raw speed.
Two carabiners are included, so you can clip the panel to your hiking rucksack via its grommets. But in my view, the PS30’s ideal calling is to keep a phone and smart speaker topped up during an outdoor get-together.
It didn’t make the final cut because … while useful and impressive, this device is less versatile than a power bank, as it doesn’t store charge and won’t work without sunlight. Charging times varied wildly in my tests, especially when clouds appeared.
Weight: 1.1kg; connections: USB-C port, USB-A port; output wattage: up to 30W (total); capacity: no storage; time to charge Honor Magic8 Pro smartphone (30%): ~8hrs; time to charge Honor Magic8 Lite smartphone (30%): 1hr
Anker
Solix PS30 portable solar panel
from £39
What we loveEco-friendly charging on bright days
What we don’t loveDoesn’t replace a power bank for everyday use
EcoFlow
Rapid Magnetic 10,000mAh
from £85.99
What we loveSuper-stylish enclosure and display
What we don’t loveFewer connections than the average competitor
Best for: eye-catching design
This chic new power bank from EcoFlow is the perfect partner for a much-loved phone, with a USB-C output and magnetic charging via the speedy Qi2 protocol. It charged smartphones quickly in tests, and also proved capable of giving a laptop an emergency top-up (which soon drained its battery).
Power banks are generally practical items rather than pleasing objects – but the Rapid is both. I enjoyed its mirror-finish display, which pairs in retro-futuristic fashion with pixellated read-outs on the power bank’s charge status, input and output. There’s also a fold-out “kickstand” that keeps your phone upright during charging, which could come in handy for watching films on the train.
It didn’t make the final cut because … it’s not as versatile as some similar-spec models.
Weight: 258g; connections: Qi2 magnetic; USB-C connector; output wattage: up to 30W; capacity: 10,000mAh (approx 2.5 charges of a Samsung Galaxy S25); time to charge Honor Magic7 Lite smartphone (30%): 25mins 30secs; time to charge Honor Magic7 Pro smartphone (30%): 21mins
EcoFlow
Rapid Magnetic 10,000mAh
from £85.99
What we loveSuper-stylish enclosure and display
What we don’t loveFewer connections than the average competitor
What we loveFun for festivals, picnics and summer strolls
What we don’t loveNot a practical choice for day-to-day charging
Best for: charging devices at a festival
Who needs mains electricity when you can charge up your smartphone via headwear instead? The delightfully eccentric Power Hat from EcoFlow conceals an array of solar panels within its brim, and these power a USB-C and USB-A charger underneath. When the sun is shining, you can plug in your smartphone and give it a top-up.
I waited for a mild spring day to test the hat’s charging capabilities. Compared with a conventional power bank, charging was slow – but when you’re relaxing outdoors, that may not matter much. Using solar means you’ll save money on electricity, and the hat’s UPF 50+ sun and UV protective material will help keep you safe while you’re at it.
It didn’t make the final cut because … its charging performance is highly weather-dependent – and this is a UK publication.
Weight: 370g; connections: USB-C; USB-A; output wattage: STC12W (+/-1W); capacity: no storage; time to charge Honor Magic7 Lite smartphone (30%): 2hrs 51mins; time to charge Honor Magic7 Pro smartphone (30%): 1hr 47mins 45secs
EcoFlow
Power Hat
from £99
What we loveFun for festivals, picnics and summer strolls
What we don’t loveNot a practical choice for day-to-day charging
There are a few crucial specs to consider when you’re choosing a power bank. The wattage tells you how much power it can deliver, so it needs to match the requirements of your laptop, smartphone or other gadgets. Voltage is equally important. If a power bank has multiple ports for charging devices simultaneously, check both the maximum power output per port and the total output when charging several devices at once. Higher-wattage power banks are typically heavier, bulkier and more expensive, as they require greater battery capacity and cooling capability.
A power bank’s inputs and outputs are also crucial. Most power banks feature ports that connect to devices (or to a mains outlet to receive charge) via USB-C or USB-A. Some models can also charge compatible devices – especially smartphones – wirelessly. And for Apple device users, certain power banks feature a Lightning cable and port.
Capacity (mAh) tells you how much electrical charge the power bank can hold in its onboard lithium-ion battery. If a smartphone has a 6,000mAh battery and your power bank holds 20,000mAh, then you should be able to charge the phone fully at least three times without running out of power.
Like all devices that use lithium-ion batteries, power banks gradually lose capacity over time. A full charge and discharge counts as one cycle, and most power banks are rated for about 300 to 1,000 cycles. Depending on how often you use your power bank, that could mean anything from a year to several years. It’s no coincidence that power bank warranties typically top out at about two years.
Good usage habits can preserve the condition of your power bank’s lithium-ion battery, therefore extending its lifespan. Very-low or very-high charge levels put the most stress on batteries, so try to keep your power bank moderately charged most of the time. It’s also best to avoid storing your power bank in very hot, cold or humid places.
Avoid putting old electrical items in the rubbish bin – in particular, any products that contain lithium-ion batteries, due to the risk of a lithium battery fire.
Instead, take your power bank to a local recycling centre, where it can be sorted into a WEEE (Waste Electrical and Electronic Equipment) bin. Materials such as lithium, cobalt and nickel can then be removed from the power bank and used in the production of other items. For guidance or to find a recycling centre, head to Recycle Your Electricals.
For more, read our guide to the best camping mattresses and the best camping chairs
Pete Wise is a journalist with more than a decade’s experience covering everything from global development and social causes to technology and music. He has written extensively on portable tech, including laptops, smart speakers and drones – one of which he misplaced in the skies over a West Yorkshire village. Reviewing power banks was a natural fit for Pete’s days out of the house as a remote worker, as he charged from bus to train, to library, to coffee shop
Read the full story at The Guardian ↗
A smartphone battery running out of power removes communication, entertainment and navigation capabilities. Power banks are pocket-sized devices that charge compatible smartphones, laptops and accessories via USB connections or wireless charging. The Guardian tested 17 power bank models from Belkin, Anker, Cuktech, Iniu, Ugreen, Bluetti, Acer and EcoFlow. Tested devices included Honor Magic7 and Magic8 smartphones and Acer and Lenovo laptops with specified battery capacities and power requirements. The reviewer timed how long each power bank took to charge test devices by 30% and evaluated additional features like digital displays and portability. Best-performing models included the Belkin BoostCharge Pro 3-port 20k (£79.99), Anker Nano (£16.99), and Cuktech 15 Ultra (£59.99) across different categories. Power output ranges from 20W in budget models to 240W in laptop-capable units, with capacity measured in mAh determining how many full charges a device receives. Portable power stations (£239–£500) feature AC outlets and higher wattage for camping, garden events and power cuts. Lithium-ion batteries in power banks degrade over 300–1,000 charge cycles; warranties typically cover two years. Proper storage at moderate charge levels away from extreme temperatures extends power bank lifespan. Power banks should be recycled through WEEE schemes to recover materials including lithium, cobalt and nickel. It is disempowering when essential devices run out of battery. The Anker Nano strikes an optimal balance between charging speed and portability. The Belkin BoostCharge Pro is a fine choice for users needing both laptop and smartphone charging. The Cuktech 15 Ultra is light years ahead of the competition in charging speeds. The Ugreen Nexode has charming appeal through its robot welcome animation. The EcoFlow Power Hat is delightfully eccentric but impractical for day-to-day use. Power banks are generally practical items rather than pleasing objects.
Read the full story at The Guardian ↗
- The Guardian tested 17 power banks across brands including Belkin, Anker, Cuktech, Ugreen, and others, charging smartphones and laptops to evaluate performance.
- Power banks range from compact 5,000mAh models (£16.99) to high-capacity 27,000mAh units (£149.99), with output from 20W to 240W depending on intended use.
- Key specifications include capacity (mAh), wattage output, port types (USB-C, USB-A, wireless), and compatibility with specific devices—matching these to your gadget's requirements is essential before purchase.
- Portable power stations (£239–£500) offer higher power output suitable for camping and off-grid use, while smaller power banks suit daily smartphone and earbud charging.
- Lithium-ion batteries degrade over 300–1,000 charge cycles; proper storage and moderate charge levels extend lifespan, and old power banks should be recycled through WEEE schemes.