How long will LP last for fridge cooling?
I plan to park my motorhome in dry storage for 2 weeks and don't want to empty our fridge & freezer. Does anyone know how long a 50 gallon LP tank will last running the fridge & freezer only?
Forum Discussion
Once that battery goes below 9-10 volts, the fridge's control board will display a "check" light (if a Dometic) and stop any boiler processes. Older refrigerators were propane only, so could just run for months on a twin set of tanks. Newer ones are limited by the battery... and at most, you have about a few days to a week before it stops. If one had a beefier bank (~500-1000 ampere-hours), two weeks might be doable.
Of course, a solar charging system makes this a completely different ball-game. A good amount of panels, a MPPT charger, and two six volt golf cart batteries would be able to keep the fridge running almost indefinitely. It likely won't be good enough to handle a furnace's amp draw after a few days, but for the fridge and the propane/CO/fire alarms, it should be fine.
Of course, a solar charging system makes this a completely different ball-game. A good amount of panels, a MPPT charger, and two six volt golf cart batteries would be able to keep the fridge running almost indefinitely. It likely won't be good enough to handle a furnace's amp draw after a few days, but for the fridge and the propane/CO/fire alarms, it should be fine.
