RYOBI introduces the 18V ONE+ Lithium-Ion 4.0 Ah Compact Battery (2-Pack) and Charger Kit with Cordless Grease Gun. This RYOBI 18V ONE+ Lithium-Ion 4.0 Ah Battery (2-Pack) and Charger Kit provides up to 3X more runtime compared to standard 18V lithium-ion batteries. These batteries are compatible with over 300 18V ONE+ products to power through all types of projects. Built with professional grade lithium-ion cells these batteries provide fade free, cord-like power. They are engineered to perform in extreme weather temperatures and are engineered to be impact resistant. They also feature an integrated LED fuel gauge for charge monitoring. The included charger is compatible with all RYOBI 18V ONE+ Lithium-Ion Batteries. The 18V ONE+ Grease Gun has a maximum pressure of 10,000 PSI, and a max flowrate up to 7.5 oz./minute. The on-board LED work-light helps illuminate the workspace, while the 30 in. flexible hose helps to reach it. Best of all, it’s a part of the RYOBI ONE+ System of over 300 Cordless Products that all work on the same battery. Backed by the RYOBI 3-Year Manufacturer’s Warranty, this kit includes two 18V ONE+ 4.0 Ah Lithium-Ion Batteries, an 18V Charger, a 18V ONE+ Grease Gun, and an operator's manual.