I beginning to think that the three stage charger is going to be a much better approach than the power supply. I've been running the Xantrex three stage charger into a 100 AH AGM battery with very, very good results. I'll put that set-up to a more rigorous test next week when my SteppIR vertical returns from the factory where it was being repaired. but until then, this set-up seems to be working very well driving my 500 watt solid state amp.
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