Onan Generator Starter Battery - Which one?
Specifications: Motorhome - 2003 Fleetwood Expedition 34W - Cummins 5.9 ISB Generator - Onan/Cummins Quiet Diesel 7500 Which battery group is best to use to start the generator? Engine ba...
Forum Discussion
GrampaR123 wrote:
tropical36?
Actually, don't you have that reversed? Doesn't the "battery boost" switch you refer to allow the "house batteries" to assist the engine starting battery when it's too weak to start the engine?
Maybe I've had the wrong idea all these years.
The battery boost/emergency start switch usually just connects the two together, much like you could do manually with jumper cables. Usually it's intended to allow one to start the main engine when the chassis battery is run down, but the wiring and solenoid controlled by the switch don't care which direction the electrons flow.
