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Apologies if this has already been answered, I spent some time searching around and couldn't find a similar question. Say I'm running an MPP all-in-one (3kw model or around there) in an RV setup. It's charging from solar or shore power, the batteries fall below the freeze point, and the BMS...

I'm poking around looking at batteries and solar for our RV and other projects. Does anyone know of a place to pick up used batteries similar to batteryhookup.com, that's located in Colorado or the surrounding states (Utah, Arizona, etc)? Local pickup would save a bunch of money!