Converter to Battery connection
Trying to understand a connection on 1708bh trailer. Red from converter runs to circuit breaker attached to the frame. Black seems to run directly to the frame for ground. From the circuit breaker, red runs to battery and a smaller red runs to another circuit breaker. From this second circuit breaker, a pink/white wire appears to run to the 12v dc fridge. There is also a black wire from battery to the frame for ground. Based on this set up, if connected to shore power, the converter appears to be powering the fridge directly as well as charging the battery. but if no shore power, the battery is sending power back through the red wire to the circuit breaker and on to the second circuit breaker to power the fridge. I know dc goes one way, but seems to reverse direction absent shore power.