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New member, first post. So far I have 1 Harbor Freight kit and 2-35 ah Harbor Freight batteries. When hooking up these in parallel does the charge controller need to be hooked up to negative on one battery and positive on the other or can it just be hooked up to the closest one? The other question is how many kits can be controlled by one Harbor Freight controller. I have an array rack built for four.
Thanks for your input.