The Handle Contains An 18 Volt Battery Which Allows The Delivery Of Grease Without Using Compressed Air. The Grease Output Is Continuous: When The Operator Presses The Dispensing Button, The Internal Gears Push The Grease Continuously Towards The High Pressure Connection. Releasing The Button Stops Dispensing. Cartridge: 400 G (not Included) - Plastic And Steel Head And Power Supply - Steel Cylinder With Anti-corrosion Treatment And Epoxy Powder Coating - 18 Volt Battery (1300 M / Ah) Rechargeable In 1 Hour - Delivery: 70cc / Min With Grease Nlgi Type (viscosity 160 Cst) At 20 ° And Back Pressure At 100 Bar. In The Package: 220v Battery Charger And Head With Lever (for Possible Manual Dispensing).