jaycool1995
New Member
Hi, I hoping to build a solar powered usb charger, this incorperates 2 AAA batteries at 1.5v each; these would be steped up from 3v to 5v (for usb charging) The idea of the solar panel is to be permentaly "trickle" charging the batteries. I am new to electronics and was wondering how to work out how much "power" the solar panel would need to generate to produce a good supply to the battery, so it would not go dead charging either an ipod, phone ect.
Thanks is advanced..
PS Sorry if it is a bit basic and confusing lol
Thanks is advanced..
PS Sorry if it is a bit basic and confusing lol