My starting batteres are Interstate 31-MHDT, with stud-type posts @ 195A-RC ea. They have a sealed top-solid plastic, no slots, slits, or cracks to pry open. There are 2 vents out the side of the top section. I called Interstate and questioned this; I was told this particular model is maintenance-free and there is no way to add solution. The woman I talked to had to put me on hold while she went to the battery storage and looked for herself because she didn't believe me when I said there was no way to add water. While telling this, she asked the store manager who told her I was right, no way to add water.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"