Posted by tonedef on October 5, 2008, 8:21 pm
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, 2:09 am
wrote:
>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?
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, 12:12 pm
On Oct 6, 2:09 am, maur...@tpg.com.au (Mauried) wrote:
> wrote:
> >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?
> Car batteries need around 13 - 14 volts to charge them.
> A 12V solar panel wont do much at all.
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, 6:35 am
tonedef wrote:
> On Oct 6, 2:09 am, maur...@tpg.com.au (Mauried) wrote:
> > wrote:
> >
> > >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?
> >
> > Car batteries need around 13 - 14 volts to charge them.
> > A 12V solar panel wont do much at all.
> 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.
You're need to learn some more. Stuff like this is not for DIYers.
Graham
Posted by sno on October 7, 2008, 7:34 am
Eeyore wrote:
>
> tonedef wrote:
>
>> On Oct 6, 2:09 am, maur...@tpg.com.au (Mauried) wrote:
>>> wrote:
>>>
>>>> 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?
>>> Car batteries need around 13 - 14 volts to charge them.
>>> A 12V solar panel wont do much at all.
>> 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.
>
> You're need to learn some more. Stuff like this is not for DIYers.
>
> Graham
>
>
Rather than trying to reinvent the wheel...here is a link to some
inexpensive chargers....
http://www.treehugger.com/files/2006/01/get_free_power.php
hope helps..have fun.....sno
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>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?