Advice on deep cycle setup?
Hello, I have a Safari van that I've converted into a camper. I replaced the starting battery with a Duracell Ultra Dual Purpose (Starting/Cycling) Battery that cost $105 (got it at batteries ...
Forum Discussion
JohnnyGood wrote:
If anyone has some wisdom on why/how to go with 24 volt panels instead of 12 volt panels, I'd be interested to hear it.
Thanks,
L
Solar math is fun!
12V panels are 36 cells and cost $1/Watt. Two in series can charge a 24V bank, making them more marketable.
Those 24V panels are incredibly priced close to 50cents/Watt. One reason is they are 60 cell panels. 60 cell panels are next to useless to charge a 24V battery. You would need two in series for that. This limits their market demand.
You could use three 100W 12V panels in parallel for 300Watts and the Grape Solar PWM controller for(300 + 55 = $355) + hardware and get 3 x 5.75 = 17.25 ISC. Parallel may be some extra wiring cost. That may be a better choice.
HTH;
John
