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  1. B

    4 - 435 watt sunpower panels.

    I have a question for Will and the group. I have an RV with 4 of the famous Sunpower commercial 435-watt panels on the roof. These will eventually feed my 48v system this spring. I have 3 large 12 v engine batteries that I am using temporarily as my house batteries too. I am only using 1...