too bad some folks have had troubles with the Optimas; I've had two for two different rigs (one each) for a LONG time, one for nine years and it still starts easy! I also drained the one in my 60 when my fusible links fried and it is back to life with a jump and a short drive after the repairs- that said, there are certainly other options, I also had another rig years ago with a diehard- no probs there either... my .02