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Hi guys i ended up with a positive ground MPPT. how do i ground it if im using in camper? if i ground it to chassis wont that just short my 12v system out?

hi everyone, New to the site and looking for recommendations for my travel trailer. just got the trailer and drained batteries after 2.5 days of camping. trailer has 2 relatively new 90amp batteries. im looking to get a 200w system that i can expand to 400w if i choose to at a later date. i...

Hi all, im trying to figure out easiest way to wire portable 200w panel into the controller in my camper. what do you all recommend? I have 15ft 10awg mc4 cables coming from panels and would like to put a male plug at end of cables and female on camper for easy connection. 15 ft seems...