Part of a system that powers outdoor gear, the Coleman® 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. Bonus? 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! OneSource powers your outdoor gear and devices with one interchangeable rechargeable battery system Pack includes 2 rechargeable 4800 mAh lithium-ion batteries Charging time: 2 hours with quick-charging station (sold separately) or 2.4 amp USB output\ 5 hours with 1 amp USB output Recharge batteries from any USB port (e.g., wall outlets, vehicles, OneSource charging stations, other OneSource batteries, or universal power banks) Supports USB-charging of external devices while powering gear Includes a 10 lumens LED flashlight on top for added visibility in low light LED battery-level indicator 3-year limited warranty