As part of the Ryobi 18V ONE ™ system of over 200 cordless tools for the home, garden, automotive, crafting and much more, the Ryobi 18V ONE ™ RB1820C 2ah Compact Lithium Battery is perfect for DIYers who need a compact battery pack. Ideal for DIYers and hobbyists who want to power their first Ryobi 18V ONE ™ tool or add more batteries to their system. The innovative Ryobi Lithium battery technology gives more power, longer run-times and better durability than previous lithium batteries. Featuring IntelliCell™ technology which monitors and balances individual cells to maximise run-times, storage life and safety. The tough pack design with built in impact protection ensures long term durability. Using a 2ah battery (included) with the Ryobi R18PD3, you can drive up to 600 4 x 32mm wood screws on a single charge. Battery charger sold separately.