1. Cordless grease gun is our patent product, its advantages as below: 1) vent valve 2) grease release valve 3) relief valve(safe valve) 4) new resettable fuse 5) new Anti-jamming circuit 6) self-locking button 7) LCD battery display 8) warm blanket and 12V cigarette plug adapter(extra,optional) 9) DC TO AC inverter(extra,optional) 2. Specification: 1) Type: electric grease gun 2) Battery: 1700MAh Ni-Cd battery 3) Charger: 1hrs fast charger 4) Pressure: 6500psi 5) Output of Grease(per minute): about 2.6 OZ per 1000psi 6) Safty design: Self-locking button; Interference fuse; Safety valve 7) Net weight of grease gun (with battery): 3.18Kg 8) CE ROHS