We tested 13 power banks to help you choose the best one

For many of us, the tech we carry to keep our other devices powered while on the go doesn’t get much consideration. Buy a power bank with enough ports, capacity, and output, and you’re good to go, right? And generally, that is right, though a few small things can make a big difference. Of the dozen-plus chargers we've tested so far, a couple take four to six hours to charge, which may be fine for some, but could be a deal breaker for anyone who needs a quicker turnaround on a fully charged power bank.

We’ve compiled 13 power banks, ranging from slim, single-port 5,000 mAh units outputting 22W to monster multi-port 25,000 mAh bricks capable of delivering 220W across multiple ports. Prices range from around $24.99 for the Cuktech CP12 (10K/20W) to $129.99 for the most powerful unit we’re testing, the high-end Anker Prime (A110B) 20K/220W. …