Battery options BESIDES Optima?


Right that is the way Optima wants you to charge it, excuse me all AGM battery's BUT my point being they sell them for a direct replacement for hundreds if not thousands uses where a lead/acid lived forever. that AGM battery lives just fine for its 7 years or whatever its rated for. So what really changed? they claim its supposed to be charge their way but sell it for every system under the sun that dosn't charge that way but works great?