Re: Mineral Oil in the Batteries ?
Reply #1 –
It may be in the misguided attempt at keeping the electrolyte from "evaporating". Does not work as the water loss is due from electrolysis when the water breaks down into oxygen and hydrogen. (That's why no naked lights or sparks near batteries). There is an additive that is supposed to prevent out-gassing. I believe it's first use was for submarines. Also popular where there are a lot of batteries on charge in a confined area such as forklifts. Do not have any experience with it.
Keith