Electric awning power?

[mikf]

Should the power source for the awning be from the chassis battery or the house batteries? Or does it make a difference?

[Mr_D]

Good question and I don't know the answer either.
My chassis batteries are 4 - 925 CCA so lots of amps.
My house batteries are 4- 8D 12V with 225 amps each @ 20 hr rate.

In my case the awnings are 120 V operated so they run off the inverter or shore power anyway. I assume that they are off the house batteries when the inverter is used.

[TR4]

My awning is also 120 v, from inverter or shore power. Inverter is off house batteries.

Bill

[mikf]

I did not realize some were 120 volts. This one is 12 volt. It is wired to the chassis battery, which is one 12 volt. It seems to me that when you are parked for a couple of months and operate the awning very often that it would be better if it was wired to the house battery. It is not mine, but my neighbor tells me if the voltage drops below 12 volt the awning will not work and he has to start the engine and let the battery charge up, or keep an eye on the volts and put a battery charger on it.

[Hgrace56]

House is best

[Gary RVRoamer]

Either one is fine, depending on your circumstances. If your chassis battery gets too low to operate the awning, I think you ned to provide some chassis battery charging during extended stays. Many coaches do this automatically, but some do not charge the chassis batteries from shore power. A $25 trickle charger or something like the Trik-L-Start gadget would fix that.

[Crankshaft]

Coachmen wired ours to the chassis battery. it could extend but not retract. I had to rewire the awning to the house batteries which resulted in quicker opening and closings of the awning.