Anker 737 Power Bank (PowerCore 24K) Review

What the Anker 737 actually is

This is the big-battery, high-wattage tier of portable charger. You get 24,000mAh of capacity and up to 140W output through one of its USB-C ports, which is the spec that separates it from the cheaper packs that cap out around 20W or 30W and only really serve phones.

140W is enough to fast-charge most USB-C laptops, including a MacBook Pro 14-inch at or near full speed. Two USB-C ports and one USB-A handle three devices at once, and there's a small color display that shows remaining charge and live in/out wattage. That display is more useful than it sounds. You always know how much juice is left instead of guessing from a row of dots.

How it performs day to day

The headline trick is laptop charging away from a wall, and owners consistently report it delivers. A 24K capacity gets you most of a full laptop recharge or a couple of phone-and-laptop top-ups before the bank itself needs power. It also refills itself quickly, since the same 140W input means you can take it from empty to usable in roughly an hour with a strong enough charger.

The catch is physical. This thing is heavy, around 1.4 pounds, and chunky enough that you feel it in a bag. It's also airline-friendly at under the 100Wh carry-on limit, which is a real selling point for travel. Just know you're carrying a paperback-sized slab of battery, not something that disappears in a jacket pocket.

Pros and cons worth knowing

On the plus side: genuine 140W output, big capacity, fast self-recharge, a genuinely helpful display, and Anker's reliability reputation. The fold-out handle is a nice touch nobody asks for until they have it.

The downsides are weight, price, and what's in the box. It often ships without a wall charger powerful enough to hit 140W, so you may need to buy a 100W-plus GaN charger separately to get the full speed. And to actually pull 140W you need the right USB-C cable rated for it. At this size it's overkill if your heaviest device is a phone.

Who should buy it, and who should skip it

Buy it if you travel with a USB-C laptop and want to work on a long flight or a day away from outlets. It's our pick for people who genuinely need laptop-class output in a battery, and the airline-legal capacity makes it a strong travel companion.

Skip it if you mostly charge phones and earbuds. A 10,000mAh or 20,000mAh pack at half the price and a third of the weight will serve you better and won't weigh down your bag. Also skip it if your laptop charges over a proprietary barrel plug rather than USB-C, since you won't get the fast charging that justifies the cost.

The verdict

The Anker 737 is one of the most sensible high-output power banks you can buy in the $110 to $150 range. It does the hard thing well, which is charging laptops fast and recharging itself fast, and the display and build quality back up the price.

Just go in clear-eyed about the weight and the likely need for a beefier wall charger and cable. For phone-only users it's too much. For laptop-toting travelers it's worth the heft.

Frequently asked questions

Can the Anker 737 charge a MacBook Pro?

Yes. The 140W USB-C output is enough to fast-charge a 14-inch MacBook Pro at or near full speed, and it will easily handle 13-inch MacBooks and most USB-C Windows laptops. You'll need a 140W-rated USB-C cable to hit the top speed.

Is the Anker 737 allowed on airplanes?

Yes. Its capacity is just under the 100Wh limit airlines set for carry-on lithium batteries, so it's permitted in your carry-on bag. Don't put it in checked luggage, since spare batteries are prohibited there.

Does it come with a wall charger?

Often not one powerful enough for full-speed recharging. To refill the 737 at its fastest you'll want a separate 100W-plus USB-C GaN charger, which is an extra cost to factor in.