Anker 737 Power Bank Review: Powerful, Heavy and Pricey

This anker 737 power bank review has a wrinkle that needs explaining before anything else. The independent tests I relied on cover the Anker 737 PowerCore 24K, model A1289. The Amazon listing linked here is a different Anker model, a 25,000mAh 165W laptop power bank, which is the closest current Anker listing I could match. I couldn’t confirm the two are the same product, and the listing details below belong to that Amazon page.

What it is and who it is for

The 737 is Anker’s big USB-C power bank for laptops, launched in 2022. It holds 24,000 mAh, or 86.4 Wh, and can push out up to 140W from a USB-C port using the PD 3.1 standard. That is enough for most USB-C laptops, MacBook Pro class machines included.

I haven’t tested this unit; this review is based on published tests and shopper feedback. The testers here are Cubed3, Techtest.org, Impulse Gamer and Robb Sutton, and I’ve leaned on whichever one measured the thing in question.

It fits travelers and remote workers who want one bank to run a laptop at close to full speed and top up a phone. If you only charge a phone, it is far more than you need.

What Amazon shoppers say

The linked listing, which I read on Oct 10, 2026, is the 25,000mAh 165W model, not the 737 the reviewers tested, so the shopper comments below describe that product.

Amazon’s summary of shopper comments is positive on performance and charging speed. Buyers say it charges a phone about five times, and they like the built-in cables a great deal. It is also described as convenient for travel.

The negatives are familiar. Value gets mixed marks. Durability does too: some buyers say theirs lasted a year, others say it broke in two months. And more than one mentions the weight, with one comparing it to a brick.

A Google or Google Shopping rating was not checked for this post. Shoppers can compare it themselves before buying.

What reviewers found

The four reviews I read were enthusiastic, and each also had a complaint.

Cubed3 gave it 9 out of 10, calling it an excellent laptop-capable bank but a heavy, expensive one that drains when left idle with the display on. Techtest.org, a German site, scored it 95 out of 100 and said it might be the best bank on the market thanks to the 140W output and PPS support, while noting the weight and the throttling that appears when several ports are in use.

Impulse Gamer scored it 4.7/5 and called it one of the most capable portable chargers: efficient and fast, but heavy and pricey. Robb Sutton found it good for travelers and heavy users and overkill for casual ones, with no wireless charging and a bulky body.

One technical finding stands out. Techtest measured 65 to 77 Wh of usable energy depending on output, against the 86.4 Wh rating. Cubed3 put usable capacity around 13,000 to 14,000 mAh. Impulse Gamer cited efficiency of roughly 85 to 89 percent. The methods differ, so the figures don’t line up perfectly, but all of them say the same thing: expect less than the number printed on the box.

That gap is not a defect so much as physics. Every power bank loses some energy as heat while it converts and delivers charge, so a bank rated at 86.4 Wh will never hand all of it to your laptop. What matters for planning is the lower figure. If your laptop battery is large, assume the bank gives you roughly one full charge at best, and less if you run several ports at once.

What is good

Power is the draw. A 140W port covers most laptops, and Techtest and Impulse Gamer both found it recharges quickly, in about 48 to 52 minutes from a 140W charger. A bank that fills in under an hour is easier to live with on a travel day.

The display earns praise too. Showing wattage, temperature, battery health and cycle count turns the bank from a black box into something you can reason about. Three ports let you charge a laptop and phone at the same time. And at a rated 86.4 Wh, Cubed3 notes it stays within the common airline watt-hour limit.

The input side matters as much as the output. The bank accepts up to 140W through USB-C, which makes it two-way, so a single laptop-class charger can refill it fast. Techtest also credits PPS support. If you travel with one good charger, that arrangement keeps your luggage simpler.

Overall verdict from the testers: a premium product that mostly delivers what it promises.

What is not so good

Weight comes first. At 630 g it is not pocketable, and Techtest, Cubed3 and Impulse Gamer all say so. You’ll feel it in a bag.

Output falls when you use more than one port. Techtest saw a USB-C port drop to 65W while the USB-A port was in use, and noted that a phantom load on the USB-A port kept the throttling active. So if you plan to charge a laptop and a phone together, the laptop may get less than the headline figure.

Heat is disputed. Impulse Gamer found it warm under sustained heavy load, while Techtest reported no temperature problem. Both could be right, since they tested differently.

The bank can also drain by itself. Cubed3 reported fast drain when it is left idle with cables attached or the display on, and Anker has a support article on the subject that turned up in my searches but that I did not read. Anker issued a recall in 2025 covering six models; the list I found did not include the A1289, but the article didn’t mention the 737 at all, so check Anker’s recall page yourself.

Warranty is a smaller point. The only terms I found were 24 months, from Soundcore’s Australian page. Buyers on that page also remarked on the weight and bulk. Warranty terms for a US purchase may differ, so read the Amazon listing before you rely on that figure.

Last, price. Anker’s US page and a Slickdeals headline about an Amazon deal, dated at an unknown point, showed quite different figures for the 737, so the cost swings. Check the current price on Amazon before you commit.

Video reviews

Three independent videos are below. I haven’t watched them, and their titles came from a search. One is titled as a test, and the other two ask whether the bank still holds up in 2025 and 2026, so together they cover performance and staying power.

How it compares

I didn’t research competitors in detail, and the alternatives I could name are placeholders, not recommendations. Anker’s Prime line shows up in search listings as a newer family, but I haven’t read anything about it. Baseus and other 100W banks exist too.

The usual trade is weight for capability. A smaller 65W to 100W bank of around 20,000 mAh will be lighter and cheaper, but won’t reach the 140W of the 737, and I have no tested figures for such a model. In my view, check the charger that came with your laptop first. If it is 65W, a 140W bank is more than you need.

There is also the listing question. If you buy the Amazon model linked here, compare its specs against the table above, because they may differ.

Who should buy it and who should skip it

Buy it if you work from a USB-C laptop away from an outlet, you already own a 100W-plus charger, and you don’t mind carrying a brick.

There’s a middle case worth naming. If you fly often, the rated 86.4 Wh sits inside the common airline limit that Cubed3 cites, which is a quiet advantage over larger banks. But a rating is not a guarantee for any specific model, so look up your airline’s rule for the unit you actually buy, especially if the listing differs from the 737.

Skip it if you want a bank for phones only, if you value a light bag over capacity, or if you can’t tolerate the possibility of throttling when you charge several devices together.

Verdict

The Anker 737 is a strong power bank with a clear purpose. Testers loved the 140W output, the fast recharge and the display, and shoppers on the linked listing praise its performance and charging speed. The penalties are weight, a premium price, throttling on shared ports and usable energy below the label.

My take: if you need to run a laptop away from a wall, it is worth a look. If you don’t, it is overkill.

• Anker 25,000mAh 165W laptop power bank, the closest current Amazon listing to the 737 reviewed above (not confirmed to be the same model). See it on Amazon (affiliate link).

_{As an Amazon Associate I earn from qualifying purchases. A commission may be earned if you buy through this link, at no extra cost to you.}