RYOBI 18-Volt ONE+ 4.0 Ah Lithium-Ion Battery

RYOBI introduces the 18-Volt ONE+ Lithium-Ion 4.0 Ah High Capacity Battery. This battery deliver fade-free power which allow you to work stronger and longer when paired with any 18-Volt ONE+ tool. They have a durably constructed frame for impact protection and an on-board fuel gauge so you can easily check your charge at any time. Best of all, it is part of the RYOBI ONE+ System of over 175 cordless tools that all work on the same battery platform. Backed by the RYOBI 3-Year Manufacturer's Warranty, this battery includes an operator's manual. Charger sold separately.