If your going to use it for your RV, I believe you have to isolate your batteries from you RV circuit, by either disconnecting them or an Isolation switch. Doing that, the BatteryMinder should work great. The problem arises that anything inside your RV that works concurrently with your batteries will not work... lights, fans, ect. So my question back would be, if your going to use this on your RVs batteies... WHY? Please tell us more of your intentions.
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