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Old 12-20-10, 12:43 PM   #14
Xringer
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Default It's overcast and snowing!!!

I wonder how long a car battery would last using about 3watts .?.

Assuming 30Ah, and the LEDs were drawing about 0.25 Amp?

30Ah/ 0.25A = 120 hours of use.
About a month at 4 hours a night. Or 5 days at 24/7.

The new LED lamp got a few hours of use last night. My wife likes it.

Strangely, the little 10w PV seems to be charging the Toyota battery up this cloudy morning.
Even with the small amount of light we had early this morning, the battery
I expected to be around 12.5V, is up to 13V already..
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