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post #5 of Old 04-27-2012
mitiempo
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Re: favourite marine battery

AGM batteries are not that new, early 70's, but many are changing to them.
They are expensive compared to flooded batteries but bargains compared to Lithium Ion. They have advantages - no water adding, can be laid on their side, and accept much more currant than flooded. But they have their charging issues and for a large bank common on cruising sailboats really require an upgrade to the charging system.

My preference is tried and true flooded batteries. The maintenance isn't more than a few minutes a month and they will often outlast AGM batteries.

Brian
Living aboard in Victoria Harbour
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