The RYOBI USB Lithium 2Ah Lithium Rechargeable Battery 4-Pack provides versatile, rechargeable power for everyday tasks, DIY projects, and anything else life throws at you. Use this battery to power any USB Lithium product, from hand vacuums and lights to fans, screwdrivers, outdoor tools, and more. This compact battery also doubles as a portable mobile device charger to top off devices like cellphones. The high visibility LED fuel gauge clearly displays the battery status so you know exactly when it's time to recharge. Easily recharge these USB Lithium batteries with any USB-C charging cable or the USB Lithium 3-Port Charger (FVCH01 / 1008371260 / sold separately). Best of all, it powers the RYOBI USB Lithium System of tools that provides compact, rechargeable, everyday solutions for cordless power and productivity. The USB Lithium 2Ah Lithium Rechargeable Battery 4-Pack is backed by the RYOBI 2-year manufacturer's warranty and includes (4) USB Lithium Rechargeable Batteries. Charger sold separately.