Works. Both batteries work. One is an aftermarket brand. The only problem is the clips on the case are broken, so it doesn't stay shut.
Lincoln Model 1800 18volt PowerLuber Grease Gun, 2 Batteries, Works
Lincoln Model 1800 18v Power Lube Grease Gun Only No Battery
Lincoln Model 1800 18v Power Luber Grease Gun Battery & Case & Manual Tested
ALLTRADE Air Hammer Model 1800-A-7 in Good Working Conditions
Vintage Alltrade 7 Piece Air Hammer & Chisel Set Kit Model 1800-A-7 New In Box
Vintage Alltrade Pneumatic Air Hammer & Chisel Model 1800-A-7 Tested Good
