Slightly confused please enlighten me, pull back the plunger and lock it unscrew and put a new grease cartridge in, screw it back on release the plunger and bleed it,i am wondering with a battery grease gun can you tell when the “chamber” is filled so you don’t pop the seal ??
if its empty no grease comes out. I don't fill it from a pail just buy cartridges which is fine for my equipment usage even with today's prices. mine is the 20 volt DeWalt great little gun.