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I've got 3 of those 850 CCA batteries from Wallymart, running about 20 watts of lights for about 6 hours each night. I've never drained them below 70% of full charge. 3- 100 Watt panels running a 12 volt setup. Batteries are 2, 3, and 8 years old. Batteries in great shape. I don't have much of a...

I'd love to see the size and cost of these batteries

Two batteries are 3 years old, and one is 8 years old. Surprisingly the 8 year old battery was tested with a load tester and a bulb tester, and its doing great. Other batteries checked good too. No bad cells on any of them. Usually the batteries never run below 12.6 volts at night, when I check...

Batteries are in parallel and panels are in parallel. Batteries are all connected using 6 premade cables from auto parts store. We're trying an experiment here tonight though. Pulling out all the stops lol. There's two 18 watt LED floodlights 15-18 feet to the left of my 1st closest panel...

Ok I've had this 300 watt 12 volt DIY setup for 8 years. Suddenly it started going off on low voltage disconnect after a few hours. I've got 3- 100 watt panels going 40 feet with #10 stranded wire. I've got 3 deep cycle batteries 100 amp hour each. I only run the batteries down to maybe 70% so...

The LED spot/flood lights on the house are being picked up by the new panel on the left. System thinks its sunlight, whenever my wife turns on the 200 watts of LED in the fixture on the house. LED is too close to the spectrum of light produced by the sun, according to some articles I read last...