Can use old iPhone batteries for solar charge?
Hi
I have like 30 used iphone 3g batteries that i have replaced fom old iPhones, i wondering if i can get some use for them connecting on series/parallel to a regulated solar panel.
My goal its to use a 12 volt system and run 3 10w led lights overnight whit 4 10w solar panels.
Thank you.
Is this a good question?