Anker Prime 300W Power Bank Review: Two Laptops, One Socket-Free Table
Anker says this pack runs two demanding laptops at once, away from the mains. This Anker Prime power bank review checks that claim against the outlets that measured it, for model A110A only.
Scored against independent measured testing by Macworld and Basic Tutorials
Reviewed 12 August 2026
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The rare high-output pack that holds its headline figure under independent testing, so long as you are the buyer who has two laptops to feed and can carry 600g to do it.
Pros
- Both USB-C ports held up to 140W while charging two power-hungry laptops at once, in Basic Tutorials testing
- Macworld reports 99.75Wh, which sits under the 100Wh cabin ceiling most airlines apply
- Macworld recorded a total recharge score of 123% against a 14-inch MacBook Pro
- OLED display and app that independent reviewers rated highly
Cons
- 600g is bag carry, not pocket carry
- No built-in cable, so the right cable is one more thing to remember
- The charging base is a separate purchase, not part of this box
Key takeaways
Six numbers that decide whether this is your power bank.
Quick specs
The paper numbers for the Anker Prime Power Bank (26K, 300W).
| Model number | A110A |
| Cell capacity | 26,250mAh |
| Rated energy | 99.75Wh |
| Maximum total output | 300W across all ports |
| Maximum single USB-C output | 140W |
| Ports | Two USB-C and one USB-A |
Specs confirmed against the Anker and Amazon listings for A110A. Performance figures come from independent testing by Macworld and Basic Tutorials. See how we test and score.
First impressions
It reads as a tool rather than a gadget. A dense dark slab with a screen on one face, closer in feel to a piece of kit you pack than something you slide into a jacket.
Basic Tutorials describes the finish and the case as robust, and Digital Camera World notes that the polished surface picks up marks, which is the trade that comes with a shell that looks this good on day one.
The OLED display is the tell that this sits at the top of Anker’s ladder. Independent reviewers found both the screen and the companion app useful rather than decorative, which is not the norm at any output level.
In the box you get the pack, a 1 m USB-C to USB-C cable rated at 240W, a travel pouch and a welcome guide, on Anker’s own list, with Basic Tutorials independently describing the cable as braided and the case as sturdy. The Prime charging base is not in this box; Anker sells that bundle as a separate model.
Design and build
At 600g and 159.9 x 38 x 62.7mm, this is a pack you allocate space to. Anker publishes both figures on its A110A product page, and the weight there is the product weight rather than a shipping weight, which is a distinction worth holding on to when comparing listings.
Anker does not publish the cell chemistry for this model, so we are not going to name one. Several chemistry claims circulate online that belong to other products in the Anker range, and we would rather leave a gap than repeat one.
The port layout is three sockets: two USB-C, each rated to 140W on its own, and one USB-A rated to 22.5W. That is the layout that makes the two-laptop claim possible, and it is also why the USB-A port is best thought of as the phone or earbuds socket rather than a third serious output.
On safety, Anker specifies ActiveShield 4.0 and states that the pack checks its own temperature more than ten million times a day, a figure Anker’s own footnote attributes to internal lab testing. Power distribution runs on PowerIQ 4.0. Basic Tutorials confirms the temperature monitoring exists; nobody independent has verified the checks-per-day number, so treat it as an Anker claim.
Darleene asks
“Everyone keeps saying 300W like I should be impressed. Impressed by what, exactly? My laptop charges from a plug on the wall.”
Alan’s answer: 300W is how much this can push out of all three sockets added together, not into any one of them.
The number exists because a modern laptop wants a lot more than a phone does. One socket here tops out at 140W, which is roughly what a large laptop’s own wall charger delivers, and there are two of those sockets.
So in practice it means you can put two laptops on it at the same time and neither one is being throttled to keep the other going. Basic Tutorials tested exactly that and found it held.
You do not need any of this if your heaviest device is a phone. A phone will draw a fraction of what one of these ports can give, and a much smaller pack will serve you better and weigh a third as much.
What the Anker Prime 300W power bank delivers under test
The headline claim holds. Independent testing by Basic Tutorials found both USB-C ports delivering up to 140W stably while two power-hungry laptops charged at the same time.
That is the part rivals quietly cap. Plenty of packs advertise a high total and then split it once a second device appears, so the interesting figure was never 300W; it was whether 140W survived contact with a second laptop.
On the everyday side, Macworld charged a 14-inch M2 Pro MacBook Pro to 100% with 33% still left in the pack, then drew nearly another quarter charge out of it, for a reported total recharge score of 123%.
Digital Camera World took a 14-inch MacBook Pro M4 from about 5% to about 80% in around 40 minutes over a single USB-C connection.
Put together, that is a laptop fully restored with capacity to spare, or a working day extended for two people on one pack.
Macworld also charged an iPhone 16 Pro to 50% in under 25 minutes, with the pack’s own display reporting a draw only slightly above 20W, which is a useful reminder that the hardware scales down as well as up.
One thing nobody has measured, said plainly: how fast the pack itself refills. Our sources disagree on its input ceiling and no independent outlet has timed a full recharge, so this page publishes no recharging figure rather than picking the flattering one.
The caveat is the one the specification hands you. 300W is a total. One device sees at most 140W, and the USB-A port at most 22.5W, so any listing implying 300W to a single laptop is describing something this product does not do.
Counted fairly, it is a two-laptop pack that happens to charge phones well, rather than a general-purpose one that happens to be big.
Darleene’s version: Two laptops, both charging properly, neither one waiting its turn. That is the whole point of it.
The display, the app and charging while charging
The OLED panel on the face reports what is going in and what is coming out, and the companion app extends that to per-port detail and settings.
Independent reviewers rated both as worth having rather than ornamental, and Macworld’s iPhone result above was read straight off that display. Basic Tutorials also confirms a pass-through mode, so the pack can feed connected devices while it is itself plugged in.
The limit is that the display tells you rates, not the state of the cells over time, and Anker publishes no charge-cycle rating for this model. If you want a running record of how the battery is ageing, this is not the pack that gives you one.
Portability and travel use
600g and 159.9 x 38 x 62.7mm puts this in a bag, permanently. It is not a coat pocket item and it is not meant to be.
What the weight buys is the two-laptop capability and the near-airline-maximum capacity. Judged against other high-output packs above 20,000mAh it is unremarkable; judged against a slim phone bank it is a brick, and both of those statements are fair depending on which you were shopping for.
There is no built-in cable, which is the design decision that will annoy some buyers most. The supplied 240W cable is good, but it lives in the pouch, and a pack this capable is exactly the one you least want to find cable-less on a train.
The number that matters here is 43.75 mAh per gram. That is mid-range, and mid-range is the correct result for a pack built to push 300W rather than to disappear into a pocket.
Airline carry-on
Macworld reports the A110A at 99.75Wh, and the common cabin ceiling is 100Wh, so this pack clears it with a quarter of a watt-hour to spare. Anker states the same capacity figure in its own product description.
The rule for a power bank at or under 100Wh is that it must travel in the cabin, in your hand luggage, and never in checked baggage. Always confirm with your airline before you fly.
For a buyer who flies regularly, that headroom is arguably the most useful fact on this page: close to the maximum energy you are allowed to carry, with laptop-grade output attached to it.
Full rules are in our can you take a power bank on a plane? guide. Check any capacity in seconds with our mAh to Wh calculator.
Full specifications and safety
| Model number | A110A |
| Cell capacity | 26,250mAh |
| Rated energy | 99.75Wh (reported by Macworld) |
| Maximum total output | 300W across all ports |
| Maximum single USB-C output | 140W (held under load by both ports in Basic Tutorials testing) |
| Maximum USB-A output | 22.5W |
| Dimensions and weight | 159.9 x 38 x 62.7mm, 600g |
| Protection | ActiveShield 4.0 temperature monitoring and PowerIQ 4.0 power distribution, as Anker specifies them |
| In the box | Power bank, 1 m USB-C to USB-C cable rated 240W, travel pouch, welcome guide, 24-month warranty. The charging base is sold separately. |
Sources: Anker and Amazon listings (A110A); independent testing by Macworld and Basic Tutorials.
Anker publishes no cell chemistry, no charge-cycle rating and no operating temperature range for this model, and itemises ActiveShield 4.0 in temperature terms only. We are not going to fill those gaps with figures borrowed from a different product.
Confirm the exact certification marks on the unit and packaging when yours arrives.
Why we scored it 8.0 out of 10
Built from four sub-scores on our current rubric.
Charging Speed takes 9.5 because the claim survived testing rather than falling short of it. Basic Tutorials held 140W on both USB-C ports at once, and Macworld and Digital Camera World both charged 14-inch MacBook Pros quickly over a single connection.
Port and Cable Design sits at 8.0. Two 140W USB-C ports plus a 22.5W USB-A, an OLED display and an app that reviewers rated, marked down for shipping no built-in cable and, per Digital Camera World, a shell that shows marks.
Value for Money at 7.5 and Carry Rating at 7.0 are the two that pull it back, and both are about fit rather than failure. How-To Geek and Digital Camera World both frame this as specialist kit; if you are not the two-laptop buyer, you are carrying capability you will never call on.
Carry Rating is the weakest of the four and deserves to be. 600g and 43.75 mAh per gram is mid-range, and no amount of output changes what it feels like in a bag at the end of a long day.
The overall lands at 8.0 rather than higher because the audience this suits is narrow. It is an editorial judgement about who should buy it, not an average of the four bars above.
The verdict
It does one demanding job exceptionally well, and independent testing rather than a spec sheet is what says so: two laptops, both at full rate, on one pack, away from the mains.
What you give up for that is 600g of bag space, a cable you have to remember, and a charging base that is not in the box. None of those are faults; they are the cost of the capability.
If you regularly work away from sockets with a laptop and a colleague, or a laptop and a camera rig, this is an easy recommendation. If your heaviest device is a phone, it is the wrong pack and a smaller one will make you happier.
Should you buy the Anker Prime Power Bank (26K, 300W)?
The honest split.
Buy it if
- You charge two laptops, or a laptop and a camera rig, away from sockets
- You fly often and want close to the maximum capacity allowed in a cabin
- You want per-port readouts on a screen rather than guessing
- You already carry a bag and 600g will disappear into it
Skip it if
- Your heaviest device is a phone, in which case this is far more pack than you need
- You want something that lives in a pocket
- You want built-in cables and nothing extra to remember
- You expected the charging base included, because it is a separate purchase
How the Prime 300W compares
| Anker Prime (26K, 300W) Our pick | Anker Prime (20K, 220W) | UGREEN Nexode 25000mAh 200W | |
|---|---|---|---|
| Cell capacity | 26,250mAh | 20,100mAh | 25,000mAh |
| Rated energy | 99.75Wh | 72.36Wh | 90Wh |
| Maximum total output | 300W | 220W | 200W |
| Maximum single USB-C | 140W | 140W | 140W |
| Weight | 600g | 510g | 609g |
| Best for | Two laptops at full rate at once | The same design in a lighter bag | A non-Anker pack at similar capacity |
Rival figures come from the Anker and UGREEN product pages, with the UGREEN output figures independently corroborated by Trusted Reviews and Absolute Geeks. No outlet we found has instrumented the Anker Prime (20K, 220W), so treat that column as manufacturer-stated.
Alternatives worth a look
Where the Prime 300W is the wrong fit, one of these is usually right.
Anker Prime Power Bank (20K, 220W)
The same Prime build and display one size down, at 510g instead of 600g. You keep 140W on a USB-C port and give up total output and capacity.
UGREEN Nexode Power Bank 25000mAh 200W
Similar capacity from a different brand, with its own display and 140W on its lead USB-C port. The catch is a lower total ceiling at a near-identical weight.
Anker Laptop Power Bank (25K, 165W)
Built-in retractable cables at a similar capacity, which is the one thing the Prime does not offer. You trade output ceiling for never hunting a cable again.
Frequently asked questions
Straight answers to what buyers search for.
Is the Anker Prime power bank worth it?
Is 300W the output of one port, or the total across all three?
Does the Anker Prime 26K 300W come with the charging base?
Can you take the Anker Prime 26K 300W on a plane in hand luggage?
Can it charge two laptops at full speed at the same time?
Can you charge devices while the power bank itself is recharging?
Do you need the Anker app, or does the display work on its own?
What are the common problems with Anker power banks?
How does it compare to the older Anker Prime with 27,650mAh and 250W?
Final word
This is a two-laptop pack that earns its bulk, and independent testing rather than a spec sheet is what proves it: 140W held on both USB-C ports at once, and near the maximum energy an airline will let you carry.
Shortlist it if you work away from sockets with more than a phone. See how we test, or see where it ranks against the rest in our best power banks roundup.
Keep reading
Three guides that pick up where this review ends.
Can you take a power bank on a plane?
The 2026 airline rules: watt-hour limits, how many you may carry, and in-flight use.
Anker 737. Still the 140W benchmark?
The pack that set the 140W bar, and whether it still holds up against the Prime line.
Anker A1695. A laptop’s wall plug, in your bag.
The 25,000mAh, 165W pack with built-in retractable cables and airline-safe capacity.
