Start Dead Batteries - Safely jump start a dead battery in seconds with this compact ... Multi-Function - It's a car jump starter, portable power bank, and LED flashlight. Recharge smartphones ...

A portable charger offers peace of mind and freedom that airport outlets, hotel lobbies, and coffee shops just can’t supply.

Battery packs that use MagSafe technology to magnetically attach to your phone offer a more compact solution than traditional portable power banks, so you can ditch the charging wires altogether.

You can start dead batteries easily with this compact and powerful 1,000-amp portable lithium car battery jump-starter ... a power bank for charging your phone, tablet and other devices.

With so many of us juggling multiple devices — smartphones, headphones, tablets, and even laptops — a portable charger ... or desperately rationing battery life on long-haul flights.

The power bank can charge multiple devices simultaneously — and shoppers say it can juice up a phone numerous times before ...