Thor Forums

[Firedog91902]

I have a 2003 Isata that doesn't charge the coach batteries while driving. That's just fine 98% of the time since the coach battery get charged from shore power. Occasionally, we won't have shore power for a two or more days in a row.

The RV has and emergency battery switch and solenoid that connects the coach and chassis batteries in parallel in the event the chassis battery is too low to start the engine. I noticed when the switch is down and the engine running the coach battery's voltage goes up to 13.05v indicating it's charging, The engine voltage regulator charges the chassis battery at 14.3. Since the wiring that connects the 2 batteries in parallel is pretty robust, I don't know where over a volt is lost.

The question is.... Occasionally, can I drive with the emergency parallel switch on to charge the coach batteries? I understand if the coach batteries are fully depleted a rather high current could result and won't let that situation happen. Any other issues or dangers I'm not seeing?