This Supa-LED Recharge Kit includes an 18650 lithium-ion battery along with the battery charger, a USB cable and a 12 V car adapter. It lets you convert a compatible Supa-LED flashlight to rechargeable power and keep it charged from a computer, USB plug or a vehicle's 12 V socket. 18650 cells are a common size for torches and offer far more capacity than AA batteries. Check that your torch takes an 18650 cell before buying. Full specifications, such as the battery capacity, were not available for this item.