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  • rickpool
    Yoshi_TAB - Quick question I hope… have set up my Lithium system similar to yours, except I decided not to do an Inverter.  Am using 4 AWG wire from bus bars to battery assuming theoretical maximum charge @ 85 amps.  But… do I also need to run 4 AWG from negative bus to the ground bar since all the negatives tie into the ground bar directly?
    May 6
    • Yoshi_TAB
      Yoshi_TAB
      Hi, I am not an electrical expert , but my answer is no. I did not. I only have the larger AWG wire to the bus bar, then 10 AWG wire from busbar to OEM ground bar. Make sure you have your battery fuse protection , sized for 85 amps as close to the batteries as possible.
    • rickpool
      rickpool
      Thanks. I believe I simply need to move the WFCO and Solar Controller negatives to my new negative bus bar (rather than leaving them connected to the OEM grounding bar). I believe you did this also?
    • Yoshi_TAB
      Yoshi_TAB
      Hi, I connected my battery and solar controllers to the negative busbar. Then ran a 10 AWG wire from negative busbar to the OEM busbar screwed to the floor behind the WFCO. I’d have to double check but I believe I left the WFCO ground wired to the OEM busbar.
    • Robermcm