Anker 737 PowerCore 24K review: the do-everything travel power bank

The Anker 737 PowerCore 24K is the bank we recommend first in our best travel power banks guide, and it is the one most travelers carrying a laptop should look at before anything smaller. This review covers exactly what you get, the spec that matters most for flying, and where it wins or loses against the alternatives.

Who it is for

This bank fits one buyer especially well: the traveler who carries a laptop and wants a single battery that handles a full travel day. The 140W output charges most laptops at their full rate, not the trickle a smaller bank delivers, so a dead MacBook on a layover is a 40-minute problem rather than an all-day one. At 24,000mAh you get roughly a full laptop charge plus several phone top-offs before the bank itself needs refilling, and the same 140W input means it recharges in about 2.5 hours rather than overnight.

It is less ideal if you only carry a phone and want something that disappears into a pocket. At 1.32 lb it is a deliberate brick, sized for capacity rather than featherweight convenience. If your only device is a phone and you take short trips, a slimmer bank covers you with far less weight. If you are still deciding how much capacity you need, read our one bag travel kit guide first: matching battery size to your actual device load keeps your bag lighter.

Full specifications

Spec	Detail
Kit Score	8.8 / 10 (researched, not lab-tested)
Capacity	24,000mAh (86.4Wh)
Max output	140W (USB-C PD 3.1)
Ports	2× USB-C, 1× USB-A
Recharge input	140W two-way (refills in roughly 2.5 hours)
Display	Real-time digital readout: battery percentage and live input/output wattage
Weight	1.32 lb (595g)
Dimensions	6.1 × 2.1 × 1.9 in
Airline status	Carry-on approved (86.4Wh, under the 100Wh limit)
Price	$94.99

The single spec that matters most for flying: at 86.4Wh, the 737 sits comfortably under the 100Wh airline carry-on limit. Banks above 100Wh require airline approval and are often refused, so this capacity is the practical ceiling for hassle-free travel. The 737 takes you right up to that ceiling without crossing it.

Pros and cons

What it does well:

• The smart digital display shows exact battery percentage and live input/output wattage, so you always know how much charge is left and how fast a device is pulling.
• The 140W PD 3.1 output is fast enough to charge most laptops at full speed, not the slow trickle smaller banks deliver.
• It offers the highest capacity that still clears the 100Wh airline carry-on limit, and with room to spare so security never questions it.
• Over 17,000 Amazon reviews at a 4.4-star average reflect broad real-world confidence rather than a niche following.

Where it falls short:

• At 1.32 lb it is noticeably heavier than phone-only banks, so it is not a featherlight day-trip option.
• There is no built-in cable, so a quality 140W USB-C cable is required and not included; a thinner cable will throttle the 140W output.

How it compares

Against the Anker PowerCore 10K, the trade is capacity versus pocketability. The PowerCore 10K is slim enough to vanish into a shirt pocket and costs a fraction as much, which makes it the better phone-only and short-trip bank. But it tops out at 15W and 37Wh, so it cannot meaningfully charge a laptop and runs dry far sooner. The 737 gives up that slimness to be the do-everything bank: laptop-capable output, multi-device capacity, and the live display the smaller bank lacks.

Against the Baseus Blade 100W, the trade is output and headroom versus price. The Blade is flatter and undercuts the 737 on cost while still delivering laptop-class 100W from its 20,000mAh, which makes it a strong value pick. The 737 answers with more capacity (86.4Wh vs the Blade's lower total), higher 140W output, faster two-way recharging, and the real-time display. If you want the most capable single bank and the readout to manage it, the 737 is worth the step up; if you want laptop charging for less, the Blade is the call.

For the full field, including pocketable and premium alternatives scored the same way, our best travel power banks guide goes deeper, and the 737 is our top pick there too.

Frequently asked questions

Is the Anker 737 PowerCore 24K allowed on planes?

Yes. Its 86.4Wh capacity sits just under the FAA 100Wh carry-on limit, so it travels in your carry-on without airline approval. Banks over 100Wh require sign-off and are often refused, so the 737 is right at the practical ceiling for hassle-free flying. Keep it in your carry-on, never checked luggage, like all lithium batteries.

Can the Anker 737 charge a laptop at full speed?

For most laptops, yes. Its 140W USB-C PD 3.1 output matches or exceeds what the majority of laptop chargers deliver, so a MacBook and most Windows ultrabooks charge at their full rate rather than the slow trickle smaller banks provide. You will need a 140W-rated USB-C cable to hit that speed, since a thinner cable throttles the output.

How many phone charges does the Anker 737 hold?

With 24,000mAh of capacity, you can expect roughly a full laptop charge plus several phone top-offs, or four to five phone charges if you only charge phones. The exact number depends on your device's battery size, but it is comfortably a full travel day of power for multiple devices.

Does the Anker 737 come with a cable?

No. There is no built-in or included cable, so you need to bring your own 140W-rated USB-C cable to reach the full output. A standard or thinner cable will charge devices but will cap the speed below 140W, so a quality cable is worth budgeting for alongside the bank.

Anker 737 vs Baseus Blade 100W: which should I buy?

The Baseus Blade is flatter and cheaper while still delivering laptop-class 100W output, which makes it the better value pick. The Anker 737 carries more capacity, pushes a higher 140W, recharges itself faster, and adds a real-time display that shows percentage and wattage. Choose the Blade to save money, or the 737 if you want the most capable single bank and the readout to manage it.

For the full field, including budget and premium alternatives scored the same way, see our best travel power banks guide.