Hilldweller
SE Expedition Society
Funny, I have an Optima charger. It charges at 12 amps when a battery is severely discharged.dead cell after only 5 months
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The dealer that I bought it through told me that the Optima distributor would fight against replacing it. He said they had a "huge" charger that dumped a "ton" of amps into batteries to bring them alive long enough to kick them back to the customer. He showed me half a dozen batteries that customers had brought back more than once.
Your dealer is giving you bad intel.