
Anker 737 Power Bank Review: 24,000mAh Is Heavy, and Worth It
At 630 grams, the Anker 737 is the heaviest thing most people will pack into a carry-on that isn't clothing, and 140W of output combined with a 24,000mAh, 86.4Wh capacity is exactly why it earns that weight. It charges a laptop and a phone at once, tops itself up in under an hour on a fast charger, and sits safely under the 100Wh airline ceiling that trips up bigger power banks. For a single phone on a weekend trip, it's overkill. For a week away from reliable outlets with a laptop in the bag, it's one of the few power banks worth the extra half-kilo.
Best for: Travelers carrying a laptop who need to charge multiple devices from one outlet-free bank for several days.

