Quote:
Originally Posted by Shawn.O
your heater is going to run a fan while it's distributing heat throughout your travel trailer, that fan is going to draw power that will drain your battery. I have never dry camped but I wouldn't think one battery will not be enough.
|
The heater fan in my little A-frame draws just under 4 amps when it is running. I assume that in a larger travel trailer the current draw will be closer to 6 amps. This will be biggest 12V power hog if you are using the heater much.
If the heater fan draws 6 amps, and runs 5 hours in a 24 hour period, that's 30 amp-hours (AH). Your single size 24 battery is typically 80AH, and should not be discharged below 50% for decent battery life. Bottom line is 6 hours run time on your heater fan, and your battery needs recharging.
On our A-frame, we have a small space to heat, and the fan only takes 4 amps. A maximum run time of 5 hrs/night (so far the most we have had is 4 hrs run time on a 30 degree November night at Capitol Reef National Park) sucks 20AH. We added a 2nd battery to carry us for 4 nights dry camping/boondocking. This later became 2 Costco (Interstate) GC-2 232AH 6V golf cart batteries when one of the original size 24s failed, and took the other one with it.
just my experiences
Fred W
2014 Rockwood A122 A-frame
2008 Hyundai Entourage minivan