Originally Posted by Afc-Jr
Use plain old mineral oil from the drug store, lots cheaper and does the same thing. I did my Interstate U-2200's in 2004 and they lasted another eight years. I left our rig plugged in with the inverter on 24/7/365 for the whole time unless we were using it. The battery tray has one small spot of rust, the hold down straps are still the original too.
The correct amount is 2 oz per cell for 12 volt and 4 oz per cell for 6 volt batteries.
Here are the batteries after four years and they had not been cleaned even once in that time!
And for the worry warts out there: the gas can in the second photo has nothing but distilled water in it.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '05 Odyssey