I suggest getting rid of those Harris batteries, they have been talked a lot about the problems they have, just do a search. Other forums as well. I replaced mine as part of the deal to buy it. Went with two 6v batteries in series. My refrigerator will run all night, but then I have 400w of solar for charging back up during the day. Two 6v batteries should fit in the same place (under the step right), or is it somewhere else?
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