Math help needed for converting volts/watts in solar Answered
Here's what I know: Watts (P) = Amps (I) x Volts (E). What I don't know is if I have a solar panel that is rated at 12v, 0.125 mW I can do the above equation to get that my amps are 0.01. Does that sound right?
My real Q, is what is the best power battery to store this energy? Should I only use 8 "D" cells? Could I use a 12 v motorcycle battery?
If I use Ni-Cd batteries, is the fact that the batteries are rated at 2500 ma make any difference?
Is there a website where I can get a good feel for what batteries are good for what type of activity, solar cells, etc?