i am pretty heavily bought into the DeWalt battery tools, so picking up a dewalt grease gun was a no brainer. I am mostly using the newer 60v batteries on the saws, drills, and grinder so I had an older small 20v battery that is now dedicated to the grease gun. I just put the whole thing in a 5 gallon bucket. Couldn't be any easier. Takes about 5-8 minutes to grease the whole backhoe.