Originally Posted by Thee Jimbo
Wow, thanks everyone for the feedback, and scott and P-Raz thanks for the Pix and links.
This is really helpfull informaiton.
And to provide a little more info for my needs:
I would like to go a full 7-9 days with no hookups. I have a Dometic 211 3-way fridge
, works good on propane
and have no idea how much 12V juice it will need, hopefully wont need it other than for towing purposes (I have heard that a flame will not stay lit when towing). Also I am converting my interior lighting
to 12V, most likely LED so it will use less draw, and I am installing a Fantastic fan, which may run lots.
Currently I am looking for a heater (PO took it out) and I believe they are fan driven as well.
So hopefully the draw will not be a lot.
I have read several places that 2 6 volts can draw lower than 1 12V, but from what everyone has posted, I may be able to get away with 1 12 V.
6 Volt batteries (the golf cart type) generally are around 250 amp hours, weighing
close to 100 lbs each. One 12 battery
with 250 amp hour capacity would weigh around 200 lbs. It's much easier to handle and change 2 100 lb batteries than one 200 lb battery
. All the rest you hear about 6 volt golf cart batteries is myth.
I've gone as much as 3 weeks without moving and will probably go for a month next winter. One 20 lb propane
tank, one group 24 battery
at less than 80 amp hours, one 65 Watt solar panel
. Plus one 50 amp hour battery that runs my ham radio using the same 65 watt solar panel
to keep it charged.
What I run on that:
set to 55°F. It usually comes on a couple times early in the morning, the is set to around 65°F when we get up. The 65° is only until the trailer warms up. Depending on the outside temperature is it usually turned off.
, have to be careful and not freeze everything in the box, so it runs from medium to low.
Stove top. Make coffee every morning, cook breakfast about half the time, Dinner most of the time.
. 6 LED fixtures and 2 CCFL tubes. In the winter a couple of the lights
are on for about 3 hours each night, even in the southwest.
Charge various electronic devices like cameras, PDAs, Kindles.
I usually charge the laptop computers (2) with the 50 amp hour ham radio battery.
Note that most of our long term camping is in the winter, cooler temperatures, and shorter days, which requires more propane and more lighting
There's tendency to over estimate energy needs while living in one of these small trailers. Remember you spend most of your time outside, with the trailer door open, at least we do.
For 7-9 days you only need to watch your battery, if you have a solar panel
it's not a problem. If need be you can always hook up the big generator
(tow vehicle) to charge the battery.