An 18V Lithium+ battery with 5.0 Ah capacity and improved durability. It fits every Ryobi machine in the ONE+ system. A 4-stage indicator shows the charge remaining at 100%, 75%, 50% and 25%. IntelliCell technology monitors and balances the individual cells to get the most run time and the longest life from the pack. The housing is built with impact protection for a long service life. As a guide to capacity: one charge drives up to 1,550 screws of 4 × 32 mm with the R18DD3.