Forum Discussion
sabconsulting
Jan 02, 2014Explorer
FreeLanceing wrote:
Nice job, and nice video. We share the same camper, same year as well I believe. I have had my trials with the N300.3. I was wondering how you got the old unit out. As I recall it does not fit through the door. Sawzall it in half, remove the door? I was also wondering what that new unit cost. What if you don't have solar but maybe 2 batteries. I normally have 110 availible and could always run the honda for recharge. I imagine it would work great going down the road with the truck charging the battery. Mine still works but its not dependable. When I camp its rarely above 80 so I limp along.
Some input from when I replaced my fridge a couple of years ago - my old absorption fridge didn't initially fit through the door, but after removing the fridge door, frame and some other bits that unbolted it was fine - my replacement compressor fridge was narrower.
If you don't have solar then you'll have to do the math to work out how long at the average amperage you can last on your two batteries (without going below say 50% charge). This issue could be that if you were driving a bit every day and boondocking every night the daily drive might not provide enough juice to recharge the batteries AND run the fridge meaning your batteries are fighting a losing battle. Though if you have fitted a second or heavy duty alternator and suitable wire to the camper then that probably won't be a problem. If you have 110 available at most places you camp and are only away from it for a day or so then you probably have nothing to worry about.
I only have one battery and although I have solar I can't guarantee getting much out of that in northern Europe. I also have a fairly long run of wire from the standard truck alternator to the camper. So to make the most of every drop of electricity I get. I therefore now have an MPPT combined solar and DC-to-DC charger that combines the power from the alternator and solar and uses switch-mode technology provide the best charging voltage at all times. In parallel with that I fitted a multi-stage intelligent battery charger that adds charging current whenever I've got hook-up. If the camper battery is fully charged the DC-to-DC charger will reverse the flow and use the solar to charge the truck battery.
Steve.
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