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Can somebody tell me the good points and bad points of using a dry cell battery as a 2nd battery. I understand you cannot use a standard car battery charger for these - instead a specific dry cell charger is required. I am assuming the dry cell battery would have no adverse affects being charged off the boat alternator when the engine is running?
My plan is to add a 2 battery perko switch and use the dry cell as the "get out of jail battery" if my primary battery goes flat. If I can get away without relays and combiners I would rather do this. Thoughts and comments appreciated. Cheers.
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