[nastyn8]

Yeah it is a slight downside but they need constant charge like a wet type. We had a whole pallet of gel cells but they weren't optima they were made by Excell. But anyway we had them for nearly 6 months and didn't sell a damn one of them basically b/c most of my dads customers are farmers and dont understand a lot of technology and a gel cell is really what they need for diesel trucks and tractors. They have more vibrations than most gasoline engines.
But yes I asked my dad if you put a fast charge on a gel cell will it have bad results then he admitted to me he had one explode, then he called his distributor and they explained to him why it happened.
but anyway theres for 2 cents