190 watt solar panel

Submitted: Thursday, Jun 30, 2011 at 21:22

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Charli

Hi All

just have a question for the solar gurus out there. I have recently been given a 190 watt solar panel (used on home solar installations). The panel has an open circuit voltage of 42.5volts and a short circuit current of 5.62amps. How can I make use of this panel for topping up a 12volt battery whilst camping, Jaycar told me they don't sell a regulator to do this. Just wondering if anyone else has come up with a way of doing this or has any ideas.

Cheers

Charli

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Reply By: Battery Value Pty Ltd - Thursday, Jun 30, 2011 at 22:02

Thursday, Jun 30, 2011 at 22:02

Hi Charli,

there are very few solar regulators out there which can do this for you.
It's got to be a MPPT, but none of the cheap ones because their processor isn't smart enough to handle a voltage mismatch between panel and battery.

cheers, Peter

AnswerID: 458909

Reply By: Member - Ed C (QLD) - Friday, Jul 01, 2011 at 00:59

Friday, Jul 01, 2011 at 00:59

I have one of these ,

and it will do what you require just nicely...

:)

Confucius say.....
"He who lie underneath automobile with tool in hand,
....Not necessarily mechanic!!"

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My Profile Send Message

AnswerID: 458922

Follow Up By: energy marty - Friday, Jul 01, 2011 at 15:53

Friday, Jul 01, 2011 at 15:53

yep - sunsaver mppt is an awesome regulator. morningstar also do the tristar mppt, but the are a little dearer.

I think watts2c have them on their web site

mh ~:-)

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