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Help! What's wrong with my 12v Solar Charger?

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Posted by tonedef on October 6, 2008, 12:21 am
I'm trying to put together a solar charger by connecting a 12v, 1A PV
panel to a female car power supply. The soldering is all correct, and
with the correct polarity. My multimeter reads +12v at the female
power outlet, but when I plug things in, no charging occurs. What
could be going on here? Thank you for any insight. :) Could I provide
any more info to help out?

Posted by Mauried on October 6, 2008, 6:09 am

Car batteries need around 13 - 14 volts to charge them.
A 12V solar panel wont do much at all.

Posted by tonedef on October 6, 2008, 4:12 pm
 On Oct 6, 2:09am, maur...@tpg.com.au (Mauried) wrote:

In full sunlight, the charger does supply 14v, but I'm not using it to
charge a car battery; I want to use it to charge portable electronic
devices that use car adapters.

Posted by Eeyore on October 7, 2008, 10:35 am

tonedef wrote:

You're need to learn some more. Stuff like this is not for DIYers.


Posted by sno on October 7, 2008, 11:34 am
 Eeyore wrote:

Rather than trying to reinvent the wheel...here is a link to some
inexpensive chargers....


hope helps..have fun.....sno

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