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Old 01-04-2012, 02:41 PM   #52
scrubjaysnest
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Join Date: Oct 2010
Location: Big Bend area, Florida
Posts: 2,120
Default solar panels first test

Tacked everything together to make sure the system is functional. With 21 volts into the controller and 14.8 volts out indicated a good charge even with a low angle of sun light on the panels. This was done at 3:30 pm EST. The estimator program from AZ wind and sun indicated 12.77 amps into the battery. At present I can't measure above 5 amps DC and I realy have doubts about the spread sheets estimate. The volt drops were correct but the current seems high like maybe their controller estimate is for mppt not pwm.
I'll have a better idea once installation is complete.
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mods: 2- 100 watt solar panels, on roof, 300 watts portable



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