Why should you buy a portable power bank?

Whether you need to charge your phone, tablet, or laptop, these portable power banks will help keep you connected wherever your travels take you.

What is a high capacity power bank?

Ultra-high-capacity power banks are a must-have if you plan to spend extended time on the go. These 25000mAh to 50000mAh beasts can power larger devices like digital cameras and laptops, or give your phone a full charge several times.

Which power bank should I buy?

The Nimble Champ is our top recommendation for most folks, but we have all sorts of alternatives here. Read our Best MagSafe Power Banks guide for Apple-specific portable chargers, and our Best Portable Power Stations guide if you need more power. Updated June 2025: We've added power banks from Redmagic and Statik, and added a new FAQ.

How much power does a power bank give a phone?

Our testing shows that a power bank can offer your phone about 70% of the power it contains. It loses the rest due to the inefficiency of the power transfer. That means a 5,000 mAh battery can fully charge a phone with a 3,500 mAh battery, like an iPhone 16.

How much does a power bank cost?

Iniu Power Bank BaI-B64 for $72: Offering relatively low prices, Iniu is a power bank brand on the rise. This portable charger packs a 27,000-mAh capacity, can put out up to 140 W, and charges three devices at once via two USB-C ports and a single USB-A port.

Should you buy a small or high-capacity power bank?

Smaller capacity chargers offer great portability but only hold enough charge for maybe one or two full charges for a phone, at best. If you often need to charge multiple devices at once, you need to shop for the best high-capacity power banks.