MPPT Controllers
As I continue the learning curve, I'm finding the answers I get always lead to 2 more questions... funny how that is... I've been working backwards in developing my solar needs, going from panels t...
Forum Discussion
I start with wanting to run a MW at 125 amps draw from 12v battery bank via inverter. Have experience that says make that 125 approx 25% draw on the bank. Means need four 6s or equivalent. Can last for days with good solar and two 6s, but then that goes way over the 25% draw with the MW. So needs four even though really only need two.
Truck camper can take four 6s if you put them or half of them in the truck bed in front of the wheel wells before sliding in the camper. Connect the wires when the camper is part way in so the wires will reach, then slide in the rest of the way.
I don't believe in the usual rule of thumb for how much solar to have for how much battery. Solar helps keep the battery from going down so fast between generator charging sessions. It can stall the next generator session till October from the last one in June, but it is still a stall. At some stage, depending on the weather, out comes the gen.
What counts is how much battery you need to get by no matter what. If your scenario is a long weekend and recharge back at home, or maybe you have to go to storage and no 120v there, so now what? Or you do a month or two off-grid with lots of sunshine---scenario is everything.
Once you have the battery bank issue solved, "some solar" is gravy. Generator and charger is more important because it works no matter what the weatherman does to you.
Truck camper can take four 6s if you put them or half of them in the truck bed in front of the wheel wells before sliding in the camper. Connect the wires when the camper is part way in so the wires will reach, then slide in the rest of the way.
I don't believe in the usual rule of thumb for how much solar to have for how much battery. Solar helps keep the battery from going down so fast between generator charging sessions. It can stall the next generator session till October from the last one in June, but it is still a stall. At some stage, depending on the weather, out comes the gen.
What counts is how much battery you need to get by no matter what. If your scenario is a long weekend and recharge back at home, or maybe you have to go to storage and no 120v there, so now what? Or you do a month or two off-grid with lots of sunshine---scenario is everything.
Once you have the battery bank issue solved, "some solar" is gravy. Generator and charger is more important because it works no matter what the weatherman does to you.
