I have a solar panel that outputs 12 volts. It was designed to trickle charge a car battery. How can I convert this to charge a cell phone, or other devices via USB? I know that USB takes only 5 volts, and may need some kind of shut off ti prevent over charging.
More Pages:
- Solar Panel: Can You Charge A Phone With A Small Solar Panel? (5/11/2011)
- Solar Panel: Can I Safely Charge An Auxiliary RV Battery Using The Alternator And A Solar Panel At The Same Time? (8/23/2011)
- Solar Panel: How Would I Go About Charging A 9 Volt Battery With 2 Solar Cell Modules Without Over Charging? (10/6/2011)
- Solar Panel: If One Small Solar Panel Can Charge 1.5 Volts In One Day? (11/3/2011)
- Solar Panel: Solar Panel Cell Phone Overcharge? (1/28/2012)

{ 2 comments… read them below or add one }
You can buy a solar mobile charger.
the charger can charge your mobile by USB.
I sell solar mobile charger
You can email me. and then we talk more
You can get 12V phone chargers for each phone model. You can also get 12V to USB converters.