this post was submitted on 04 Aug 2025
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I did see a guy make a cooler with a cistern, pump and radiator. Water in the cistern/well is cold most of the year. Guess you just have to drain it in the winter, but yeah I'd say batteries can be a money sink.
Also I did kill a lot of batteries by hooking them in parallel to a bad 12v battery, buuut that's just me saying battery system can go for a lot