Neiko 12000A 12V Cordless Grease Gun, 6500 PSI | Dual Ni-Cd Rechargeable Batteries Included Trigger-operated 12V cordless grease gun, puts out 6500 PSI, faster than a hand-pump grease gun and is compatible with zerk fittings Made of rugged ABS and steel, includes a 30" flexible hose that allows you to reach into tight spaces Includes UL/CL charger and dual 1300mAH Ni-Cd rechargeable batteries that powers up within an hour Reservoir holds standard 14.05 grease cartridges which are easy to swap out; also fillable by suction or pump Uses a vent valve to expel trapped air and prevent air pockets for a clean, even flow of lubricant