[rohrmann]

The original breaker that provides power to the hydraulic pump motor also usually has an additional wire attached that feeds the 12 volt side of the inside panel and this is where power from the converter comes through that charges the batteries. This circuit goes through the battery disconnect switch. When you replace the 50 amp breaker with an 80 amp breaker, connect the battery cable to the battery terminal of the new breaker and the two cables that are connected to the load terminal to the same terminal on the new breaker. You will need to make the holes in the ring terminals a bit larger to fit the larger terminal posts on the 80 amp breaker.