When you're out in the wild, it's hard to keep all your necessary technology recharged. Get your device recharged with the Coleman OneSource C004 Rechargeable Battery Pack. Part of a system that powers outdoor gear, the OneSource Rechargeable Lithium-Ion Battery, Pack of 2, can be used interchangeably in a range of compatible devices, including lanterns, flashlights, wireless speakers, air pumps, tents, and shelters (each sold separately). Easily recharge the battery from wall outlets, vehicles, other OneSource batteries, or universal power packs with the included USB cord. The OneSource battery helps eliminate the need to pack multiple power sources by letting you charge external devices, like smartphones or tablets, through a USB port, even while powering gear. One system, one source, power anywhere! Don't struggle without power in the wild again and stay prepared for anything. Keep your devices powered up for your adventures out in the wild and say goodbye to dead devices with the Coleman OneSource C002 Rechargeable Battery Pack.