20Vd, 4.0Ah for a 596 or 597 grease gun.
Alemite Series 596 Grease Gun Lubrication Maintenace 2-Speed 20v Li-Ion-
Alemite 597-B Grease Gun, LCD, 18" Hose, 20V Battery
Alemite 596-B1 Grease Gun, LCD, 20V Battery, Dual Flow
Lithium LiFePO4 Car Battery Auto Battery, 12V 40Ah, 660CCA, 100RC Deep Cycle ...
Hercules 20V VarSpd Grease Gun HC108B w/ 20v/5AH batt & 20v/12v Li-Ion Fast Chgr
Alemite Grease Gun Adaptor. Alemite pin fitting to Zerk fitting 1920s 1930's