No E-start. What?!
I work for an RV dealership, which just completed a four day show at the fair grounds. We had several Class C, on Mercedes Sprinter chassis, with a dead chassis battery. We've had this problem at prev...
Forum Discussion
maillemaker wrote:
Unfortunately if you forget the switch is flipped that way and you run your generator and start up the engine at the same time you will fry the voltage regulators in the car and RV as you have competing voltage inputs.
Steve
I highly doubt you'd fry any voltage regulators. If the battery voltage seen by a converter or alternator is sufficiently high, it just basically shuts off and doesn't send any power out. They don't try to pull the voltage down.
There are various circuits and designs for these switches, and not all have two positions as yours does. My motorhome just has a pushbutton for the emergency start that engages the relay to connect the batteries. When the button is not being pressed, the same relay is controlled by the run circuit of the chassis ignition system to allow the house battery to charge. I've had the main engine running (and so the batteries interconnected) with the power cord plugged in and powered and nothing bad happens, and likewise also driven with the generator running on a very hot day so the roof air conditioner could operate. (It does go without saying that actually driving very far with the shore power cord connected does tend to cause various other problems!)
