Anker Prime 737 Power Bank Review

Verdict

Buy the Anker Prime 737 if you carry a laptop and want one object that charges it, your phone, and your earbuds at once, and tells you in watts how fast each is going. It’s the most complete power bank we’d recommend for mobile work. The two complaints are that it’s heavy and expensive, and neither is a flaw so much as the cost of what it does. If you’ll never charge a laptop, this is more brick than you need; see the Budget pick in our power bank guide instead.

Rating: 9.0 / 10.

We have not bench-tested this unit; this is a research-based review. The output and capacity figures below are Anker’s published ratings, flagged wherever they appear, and we haven’t posted our own charge curves yet. How we test draws the line between what we’ve verified and what we’re reporting from the spec sheet.

Charge speed, and the display that proves it

Speed is the reason this pack exists. Anker rates it at 140W total across two USB-C ports and one USB-A, with a single port able to charge most ultrabooks at or near their full input. The number on the box matters less than what it buys you: the bank drives a laptop and a phone at once without collapsing each to a trickle, which is where cheaper multi-port packs fall apart.

The live display turns that capability into something you can trust. It reports watts in while the bank recharges and watts out while it feeds a device, in real time. A weak cable that caps a laptop at 18W shows itself instantly, instead of leaving you wondering why two hours did nothing. One asterisk: hitting those top speeds still depends on pairing the bank with a cable and wall charger that can keep up.

Capacity

At a rated 24,000mAh, roughly 88 watt-hours, the 737 sits just under the 100Wh airline carry-on limit. That’s enough to refill most phones four or more times, or to give a thin-and-light laptop a substantial top-up while keeping a phone alive. Delivered capacity runs below the printed number after conversion losses, so treat the headline as a ceiling. Even so, this is about as much stored energy as you can pack into one object and still carry it on.

Portability: the weight you sign up for

At roughly 630 grams, the 737 is a real presence in a bag and a non-starter for a pocket or a small purse. The metal body that makes it durable also makes it dense, and nobody builds a 24,000mAh, 140W brick that also disappears. It’s the cost of the capability, and the kind of thing you commit to carrying rather than forget you have.

Build and display

The aluminum shell, the readout, and the fit and finish sit a clear step above plastic budget packs. The display is functional rather than decorative, and the unit feels built to survive years of being thrown into and yanked out of a bag.

Value, and who it’s really for

Here the buyer matters more than the spec. The 737 costs more than a plain 24,000mAh pack with no display and fewer ports, and whether that premium is worth it depends on whether you’ll use simultaneous three-device charging, the high single-port ceiling, and the live readout. For someone whose bag already holds a laptop and who’s tired of choosing which device gets the one battery, it’s money well spent. For anyone who only ever charges a phone, it isn’t. (If that’s you, the How to Choose a Power Bank explainer will steer you toward something smaller and cheaper.) We keep price talk qualitative; for live numbers, see the buy box.

The competition

Within our power bank guide, the Baseus Blade is the direct alternative: nearly the same laptop-charging job in a slimmer, cheaper, display-free body. If you don’t need the readout or the third port, the Blade is the smarter buy. The 737 wins when you want maximum capability and information in a single device and will accept the weight and the price to get it.

Bottom line

Buy it if you carry a laptop, want to charge it alongside a phone and earbuds, and value knowing in watts what’s happening, and if the weight and price are costs you’ll happily absorb for that. Skip it if you only ever charge a phone, want something pocketable, or won’t use the display and third port. You’d be paying for capability you’ll never touch, and the Baseus Blade or a smaller pack serves you better.

We ranked it at the top of The Best Portable Power Banks, and it shares a shelf with the rest of our electronics reviews. Skeptical of a verdict on a unit we haven’t put on a meter? Good. How we test is where we draw that line in the open.