2oldman wrote:
Jbrowland wrote:
Could a 40w panel re-charge a group 31 AGM (half depleted) in a day with a decent amount of sun?
I know these questions are hard to answer with so many variables. I have read so much about solar panels that my head hurts now. :)
At 100ah, 50% depleted is 50ah. 40w panel = 3amps, at best. 50/3= 17 hours.
It will take a couple of really good days, at least.
Two 100 watt panels, some 3/4 inch pvc, 30 foot of 10 awg wire and controller will be less then a suit case portable system.