Enter the RYOBI 18V ONE+ System with the 18V ONE+ 1.5 Ah Lithium-Ion Battery. The new compact design is lighter weight and reduces overall user fatigue. This battery features a high visibility LED fuel gauge to clearly indicate remaining runtime. Fade-free power allows users to optimize the entire charge of the battery in all weather conditions. The robust design and anti-vibration technology increases durability and enhances user experience. Easily install and remove the battery with secure quick-release latches.