This Ryobi ONE+ 18V Lithium-ion 2Ah battery starter kit provides up to 1.5X more runtime compared to our 1.5Ah standard lithiumion battery. It is compatible with 18V ONE+ tools to power you through all types of projects. It has a compact design for less weight and reduced user fatigue. It also features professional grade lithiumion cells to provide fade free cord like power. It performs in extreme weather temperatures and is engineered to be impact resistant. This battery features an integrated LED fuel gauge to check your battery charge at all times. Batteries stored on this charger are conditioned for peak performance. Both battery and charger are part of the Ryobi ONE+ System of Cordless Tools that all work on the same battery platform.