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In-depth review

Anker 737 Power Bank Review (2027)

The Anker 737 pairs 140W output with 24,000mAh and a live display. Our research-based verdict on the laptop pack most travellers should buy.

TGBy TrueGear Research TeamIndependent editorial teamLast updated How we researchResearch-based assessment · Power Banks
Specs verified against manufacturer docs
No paid placements
Independently funded by readers
Updated 2026-11-01
Anker 737 Power Bank Review (2027) featured graphic
Anker Anker 737 Power Bank (PowerCore 24K)

Anker Anker 737 Power Bank (PowerCore 24K)

The 140W laptop pack with a live display, in a body small enough to justify carrying every day.

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Our verdict

The 737 is the laptop pack that makes the fewest compromises. Its 140W output covers nearly every slim laptop, its 24,000mAh reserve outlasts a travel day, and its display answers the two questions every pack owner asks: how much is left, and how fast is this actually charging. The weight and the need for a 5A cable at full speed are real costs, but for a traveller with a laptop, they are costs worth paying.

What we like

  • 140W max output over Power Delivery 3.1, enough for most USB-C laptops as well as phones and tablets
  • 24,000mAh capacity, rated by Anker at about 4.13 iPhone 16 Pro charges or 1.33 charges for a 2024 13-inch iPad Pro
  • Smart digital display reports output and input power plus an estimated recharge time, instead of four vague dots
  • Two USB-C ports plus one USB-A port, so three devices can charge at once on a trip

What to watch out for

  • At about 22 oz it is a bag item, not a pocket item, and it will dominate a small sling
  • Full 140W output needs a 5A USB-C cable and a 140W charger for recharging, neither of which is a given in a hotel drawer
  • The premium tier buys wattage and a display that a phone-only traveller will never use

What owners report: Anker Anker 737 Power Bank (PowerCore 24K)

Synthesized from recurring themes in long-term owner feedback.

Most praised

  • The display ends the guessing about how much charge is left and how fast a laptop is actually drawing
  • It keeps a laptop going through a full flight while a phone tops up beside it
  • The brick shape slides into a laptop sleeve pocket without the cable spaghetti of older packs

Common complaints

  • Owners notice the weight the moment they move it from a backpack to a jacket pocket
  • Recharging it at full speed demands a charger and cable many buyers did not already own
  • The top modes of output are wasted on phones that cap out far below 140W

Who it is for

Laptop travellers, remote workers and creators who carry a USB-C laptop plus a phone and a tablet.

140W that a laptop can actually use

Power Delivery 3.1 at 140W is the headline, and it matters because it matches the charger many slim laptops ship with. A MacBook Air or a 13-inch Pro charges at something close to its normal speed, while a phone and earbuds share the remaining ports. The catch is the cable: full 140W needs a 5A USB-C cable, and a standard 3A cable caps the same port at 60W, which turns a flagship pack into an ordinary one without any warning on the pack itself.

A display that changes how you use a pack

Four-dot indicators train owners to guess, and the 737's display retires the guessing. It reports remaining percentage, live input and output wattage, and an estimated time to full or empty, which makes it possible to decide whether a layover top-up is worth it or whether the pack should save itself for the flight. Owners describe the display as the feature they check most, which says something about how much uncertainty older packs caused.

Weight, size and the honest trade

At 6.1 inches and about 22 oz, the 737 is a bag pack in every sense, and travellers who try to pocket it learn that quickly. It also costs a premium, and phone-only buyers pay for wattage they will never draw. For the laptop traveller, though, the trade is sound: one pack replaces a laptop charger brick and a phone pack, and the display means it gets used well rather than carried hopefully.

Key specifications

Capacity
24,000mAh (maker rating)
Max output
140W, Power Delivery 3.1
Ports
2 x USB-C, 1 x USB-A
Display
Smart digital display with power and recharge estimates
Size
6.1 x 2.1 x 1.9 in
Weight
About 22 oz (maker listing)

Also consider

Anker Anker Prime Power Bank 20,000mAh 200W

Anker Anker Prime Power Bank 20,000mAh 200W

Two laptops at 100W each from one pack, with a display that reads like an instrument panel.

Why consider it: Twin 100W ports for two laptops at once, if your bag carries two machines instead of one

  • Capacity: 20,000mAh, 72Wh (maker cell math)
  • Total output: 200W max
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Research-based assessment. TrueGear has not hands-on tested this product; this evaluation synthesizes manufacturer specifications, retailer documentation, and published expert reviews.

Questions, answered

Can the Anker 737 charge a 16-inch MacBook Pro?

It can charge one, and it will sustain light work well, but a 16-inch Pro under heavy load wants its own 140W charger for full speed. The 737 matches the wattage class, so it is a strong travel companion rather than a desktop replacement, and its 24,000mAh reserve will not fully refill a large laptop battery from empty.

What cable does the 737 need for 140W?

A 5A-rated USB-C cable, which Anker includes in the box as a 140W USB-C to USB-C cable. If you swap in an ordinary cable from a drawer, charging caps at 60W and the display will show the lower draw, which is the fastest way to diagnose a slow charge.

Is the 737 allowed on planes?

Yes, in cabin baggage. Its capacity sits below the 100Wh threshold airlines apply without special approval, and Anker markets it as airplane-safe for carry-on. Keep it in hand luggage, as with all power banks, and check your airline's rules if you carry several large packs.

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