Originally Posted by Kgphd
I am wondering if anyone has found a battery-operated
propane detector and/or alarm that they like. I am holding off on wiring any constant-draw devices into my wee 2004 Scamp
13 until I have a better sense of how much propane I use when camping off-grid (or at least without electricity).
Actually most all of the RV propane detector / alarms are battery powered... the battery being the house battery (supplemented by the converter / charger when on shore power).
And the reason is that they wont last long enough on smaller batteries. You might get a week out of a pair of D cells, but much less time with smaller batteries.
My recommendation is a battery cutoff switch that shuts off everything 12 volts in the camper from the battery, including the gas alarm. The switch is used when the camper is unoccupied AND the propane tank is turned off at the valve or removed all together.
At other times the gas alarm should be used, and the battery kept up by whatever means are appropriate (shore power, solar
, weekly hookup to a charger, etc.)
Now if you find yourself in a situation where you cant recharge the battery and you need every Milliwatt possible out of the battery to keep from freezing to death, then its reasonable to remove the fuse to the gas alarm and take your chances on a gas leak. I would suggest that you do NOT install a switch to the alarm however because its just too darn easy to flip it and forget about it, leaving you without a gas leak alarm.