Forum Discussion

IT_Burnout's avatar
IT_Burnout
Explorer
Jul 23, 2017

Charging 5er batteries while driving, question.

My truck doesn’t charge the 5th wheel batteries (2 group 27 batteries) while towing. I installed a Victron Battery Monitor system with dongle on the trailer. So I can get feedback to my cell phone or...
Old-Biscuit's avatar
Old-Biscuit
Explorer III
Jul 23, 2017
RAM.....pin S/B hot

RAM ....#4 pin should be hot all the time......even with ignition key off


Having umbilical cord plugged into truck and plugging trailer AC cord into power pedestal NOT an issue

120V AC shore power supplies MAIN AC Panel which feeds Converter which supplies 12V DC system and charges battery.
Inverter (If you have one) takes 12V DC power and supplies 120V AC power to outlets/specific AC circuits for powering from battery

Separate systems

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