My last Optima experience was not a good one. It got weak in about 8 months, called tech tech and they told me to do a "10A rapid charge", I followed their instructions verbatim which resulted in a split case, then they told me I was on my own. Got pissed and threw a cheapo walmart battery in my satellite and never had a problem after that. I had great luck with Optima up to that point, but that whole situation killed Optima for me. I'm sure there are better AGM options out there.