Anker Prime 26K 300W review
Anker Prime Power Bank 26,250mAh 300W
By Tom Calder
Anker's high-end bank offers 300W total across two USB-C ports and one USB-A, with a 26,250mAh (99.75Wh) capacity that Anker describes as flight-approved. It is the strongest option here for laptops and several devices at once, and it recharges quickly with a suitable high-wattage charger. It is heavier and costs more than the 20,000mAh banks, so it is overkill if you only charge phones.
- Best for
- Keeping a laptop, phone and tablet running together through a long outage or a working trip.
- Skip it if
- You only need to charge phones and earbuds
as of 2 Nov 2026, 13:07 GMT · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- 300W total output and up to 140W on a single USB-C port with a 5A cable, enough for a large laptop
- Large 26,250mAh (99.75Wh) capacity for several device charges
- Dual-cable recharging up to 250W per Anker, so it refills far faster than ordinary banks
- Smart display and app control, and a 24-month warranty with a 1 m 240W cable in the box
Worth knowing
- About 600 g and 38 mm thick, noticeably bulkier than a phone-only bank
- The 140W single-port speed needs a 140W-capable charger, which is not supplied, and the 250W refill needs two USB-C cables
ⓘ As an Amazon Associate, PreparedBritain earns from qualifying purchases. We may earn a commission when you buy, or a fee when you request a quote, through our links. When two products are close, commission can decide which one we pick. A clearly better product always wins. Amazon prices come from Amazon's own product data and show the date and time they were retrieved. Prices at other retailers are checked by us, less often. Prices and stock can change at any time, so always check the retailer's price before you buy.
Our review
Anker's Prime A110A packs 26,250mAh (99.75Wh) into a 600g block with two USB-C ports and one USB-A, 300W across all three and up to 140W from one. It is a laptop bank first: in a power cut it keeps a work machine, a phone and a tablet going together, and it refills fast.
Who needs this much
Someone who works from a laptop and wants to keep doing so through a long outage, or a household where several devices need charging at once from one bank. If your kit is two phones and some earbuds, a 20,000mAh bank does the job for less weight and money. Our what size power station do I need guide explains when to step up from a power bank.
What Anker lists
Anker UK gives 26,250mAh, 99.75Wh, two USB-C ports and one USB-A, a 300W combined maximum and up to 140W to a single laptop with a 5A cable. It recharges at up to 250W when two USB-C cables are used at once. In the box are a one-metre 240W USB-C cable and a travel pouch; there is no wall charger. The warranty is 24 months, and the bank has a display showing charge and power flow. For a power cut, the number to compare is watt-hours: 99.75Wh is the most you can carry onto a plane in one bank without airline approval, and some of it is always lost as heat when charging, so expect several phone charges or most of one laptop charge rather than the full figure.
What Expert Reviews measured
Expert Reviews weighed it at 600g and 160 by 63 by 38mm. It recorded 140W from each USB-C port and about 21W from the USB-A, and saw about 197W going in when fed from two 100W chargers, reaching 47% in 15 minutes and nearly 89% in half an hour. It rated the Prime a best buy, while noting that phone charging was slower than some rivals and that cheaper banks exist for lighter needs. The fast refill only happens with your own high-wattage chargers; from one ordinary phone charger it will take hours.
Flying and safety
At 99.75Wh it sits just under the 100Wh line that the Civil Aviation Authority uses. The CAA says power banks must go in the cabin, never in checked luggage, a maximum of two per person, and must not be charged on board. At home, charge it on a hard surface away from bedding, and stop using it if it swells, gets unusually hot or smells; our lithium battery fire safety guide has the detail.
How it compares
On the power banks page, Anker's 25,000mAh 165W bank holds almost as much, has two built-in cables and costs less, but tops out at 100W per port. The Anker Power Bank 20K gives 65W from a port and is lighter at about 431g. The Belkin BoostCharge 20K is a simple 15W phone bank, a different class entirely.
Our verdict
The strongest bank on our list for laptops and multi-device charging, with a quick refill if you own the chargers to match. Skip it if you mainly charge phones, or if you will not use more than 65W from a single port; a smaller, cheaper 20,000mAh bank covers that.
A researched review, built from the maker's specs, manual and UK listings; facts checked 2 Nov 2026. Sources: Anker UK: Anker Prime Power Bank 26K 300W (A110A); Expert Reviews: Anker Prime A110A review; Civil Aviation Authority: Pack Right, power banks.
Who shouldn't buy this
You only need to charge phones and earbuds; a 10,000mAh or 20,000mAh bank is lighter and lower cost.
Key specs
| Capacity | 26,250 mAh |
| Max output | 300 W |
| Ports | 2x USB-C + 1x USB-A |
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the UK price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
Best for Keeping phones and tablets topped up during a power cut or a long day away from the mains.
Read the review →Best for Keeping a household's phones and a tablet topped up through a power cut, in a bank small enough to carry every day.
Best for Keeping phones and a USB-C laptop going through a long power cut, with no cable to forget.
as of 2 Nov 2026, 13:07 GMT · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Questions
Can I take the Anker Prime 26K on a plane?
Yes, in hand luggage. At 99.75Wh it is under the CAA's 100Wh threshold. Power banks must not go in checked bags, and you may carry no more than two or charge them in flight.
Will the Anker Prime charge a MacBook Pro?
Anker says it gives up to 140W to one laptop over USB-C with a 5A cable, which covers most USB-C laptops, including larger models that accept that input.
How fast does the Anker Prime 26K recharge?
Anker quotes up to 250W input using two USB-C cables. Expert Reviews measured about 197W from two 100W chargers, reaching nearly 89% in 30 minutes.
How heavy is it?
About 600g and 38mm thick, according to Expert Reviews, so it is noticeably bulkier than a phone-sized bank.
Free alerts for your home
Home Alerts emails you when a power cut, a Met Office warning or a flood warning covers your postcode. Free for your own home. Sign up in a minute.
Start free →