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Old 07-18-2012, 07:15 PM   #41
vugtitan
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Quote:
Originally Posted by MLXXXp View Post
In an earlier post you said "I already have a

The solar charging system that I'm working on will use from 1 to 4 of those 1.8W panels but also includes a 12V gel battery along with charge control and low voltage cutout circuits that I've designed.
i simply opened up the libre and connected a 9 volt solar panel to the INTERNAL BATTERY DIRECTLY with a diode in series to prevent the internal battery discharging into the solar cell or causing short circuits.

result i got on a DULL day was 15 minutes of aluratec libre pro operation after 6 hours on a window ledge inside the house.i had totally discharged the battery beforehand.

the panal can output 200 milliamps short circuit current on a bright direct sunlight day.

the current flow varied between 10 to 20 milliamps on a dull day into the libra battery.

no doubt you can on better days you could get up to a 1/2 hour operation or longer.

this was a 0.7 watt panel.
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