Black & Decker 12 Volt MAX Lithium-Ion 1.5 Ah GoPak 2-in-1 Tool Battery

Powers GoPak cordless tools and charges mobile devices. 2.4A USB (universal serial bus) output provides fast-rate charging to phones, tablets, and other USB devices. 4 LED (light emitting diode) lights provide battery state of charge. Compact, lightweight design for on-the-go portability. Slim, smooth surface allows for battery to travel in pocket, purse, bag and more. 2.4A micro USB charge input allowing for full battery charge in 2-1/2 hours.