Aux Start to Boost Cranking Amps
2007 Fleetwood Terra, F53 chassis. The coach has Power Gear electric leveling system which requires a very healthy chassis battery. If the chassis battery is weak, the jacks don't work. My question ...
Forum Discussion
DrewE wrote:
I agree with everyone--yes, it is okay to do that.
However, there's a pretty good chance that pressing the button isn't actually doing anything with the engine running, since a very common setup is to use the aux start solenoid as the battery combiner/isolator relay and have it engaged whenever the engine is running.
Yes. I agree with Drew, AND with Doug. AND, . . . . the chassis battery, AND coach batteries are, most likely, ALREADY CONNECTED (without pressing the AUX switch) since the (chassis) engine is running. HOWEVER, the OP doesn't state the RPM that the engine is running which WILL have a significant effect on the available amps from the chassis alternator. At idle, with low batteries, IMO, the alternator is only generating enough amps for basic electrical functions. (running the Power Gear electric leveling system ISN'T one of them) Revving the engine for a few minutes could/may help. Recharging the coach/chassis batteries will.
Chum lee
