Quote:
Originally Posted by Wavery
If they are 48V panels, you could run your entire camper off of 110V AC. Just get a 48V inverter of the proper size and disonnect your TM converter. Your biggest expense may be a new set of batteries. You sure don't want to load your TM with a bunch of lead/acid batteries wired in series. I did that on my class A motorhome and ended up with about 600#s of batteries.
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This quickly gets a bit more complicated than that. The biggest expense is the batteries, but the Victron MultiPlus-II 48V price is around $1300 as well.
V(mp) of most 360 watt panels is around 31-32 Volts, with V(oc) around 42 volts. The panels would need to be wired in Series to support "48v" batteries, and an MPPT solar controller would be required to handle them. Relatively few MPPT Solar controllers are built to handle "48V" batteries. Victron makes a great one, the MPPT 150/35. Add another $300 for that, or $200 for lesser machine from someone else.
16 cells of batteries like Joey's (big ones, 304Ah) now cost closer to $2400. the battery cells and another $160-200 for the BMS. Plus (maybe) additional costs, sometimes considerable, for building a 'compression' case. (I feel that to be necessary, Joey somewhat disagrees.)
After the system is done, you also need to add a 48VDC -> 12VDC "buck" converter, in order to provide power to all of the TM circuits. The Daygreen is a pretty good machine, adding another $100.
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24 volts is another option.