Had 12 volt duracells DC 24. Served me OK. lasted 6 years. They were january 2014 matched pairs.Cell went dead on neg side battery I Run 1100 watt inverter and do the coffee maker thing and toaster...
Just a thought on the 2-6v @ 215ah. There are 6v GC batteries available in the same physical size the provide 235ah. Duracell's(Deka) from Batteries Plus Bulbs. Sorry, since don't have and inverter, I can't comment on anything about the benefits of 12v vs. 6v when it comes to the "draw down" from inverter use.
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