Number 4. Anker 737 Power Bank
For a high-capacity power bank that provides quick charging, the Anker 737 is a great choice. It was one of the fastest banks we tested, capable of providing the largest amount of charge in the shortest period of time for both the iPad and Galaxy. (Anker’s 535 charged the iPhone to 100 percent an average of two minutes faster, but didn’t provide as many charges.) The 737 fully charged our S22 Ultra three times, with enough power left over for an additional 93 percent charge, all completed in under an hour on average – which is comparable to charging through an outlet. The iPhone took about an hour and a half to go from zero to full, and the iPad charged completely twice, in just over two hours, which is also similar to wall-connected charge speeds.
Although it’s great for multiple full charges on a single smartphone, it’s worth noting that the 737 only has one USB-C port, and the remaining ports are lower-efficiency USB-A ports. If you need to charge multiple devices at once, you’ll have to use the USB-A ports for some of them. Despite this, the bank costs less than other high-capacity batteries we tested and includes a 65W PowerPort fast charger, which would cost $34 on its own.
The design is nothing innovative, with a glossy black exterior and a metallic-looking finish on one side. It weighs a little over a pound and has the same shape as an old-school TI-85 graphing calculator. The bank features a single button with eight lighted pips to show how much charge is remaining.
