POWER

Choosing a power bank without overpaying

Capacity is only one part of a power bank. Compare output, charging protocol, size, safety features, and the devices you intend to charge.

Read both capacity and output

A high mAh number does not tell you how quickly the bank can charge a phone or laptop. Check USB-C power delivery wattage and the number of ports.

Consider the carried weight

A very large power bank may be useful for travel but inconvenient every day. For a phone, a smaller reliable bank can be a better purchase than the biggest capacity.

Buy from a trustworthy seller

Battery products deserve extra care. Check warranty, safety information, seller history, and return terms. Avoid listings that make implausible capacity claims.