RYOBI introduces the USB Lithium 3Ah Lithium Rechargeable Battery (2-Pack). Providing convenience on-the-go, this battery will charge your small portable devices like your phone or smart watch. Featuring 50% more runtime than FVB01, you will be able to accomplish more per charge. The on-board LED fuel gauge takes away the guess work by clearly indicating the battery level status. This battery features a USB-C charging port for easy charging with any USB-C cable. This battery is easily interchangeable across all USB Lithium products for cordless portability and minimal downtime. The USB Lithium 3Ah Lithium Rechargeable Battery (2-Pack) is backed by the RYOBI 2-Year Manufacturer’s Warranty and includes the (2) FVB03 USB Lithium 3Ah Lithium Rechargeable Batteries and operator's manual.