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Old 07-10-2015, 10:33 AM   #11
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We I stalled a solar system. In a customers RV earlier this year. . He has 520watts of solar, PWM charge controller and 4, 121 ah 12 volt batteries, 3000 Watt inverter..... . He runs his ac with it
I recently installed 300 watts solar and 2500 watt inverter with auto transfer switch, but as per my last post batteries are lacking but I have no plans to run AC's off them anyway.
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Old 07-12-2015, 09:10 AM   #12
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CJM pretty much nailed it. I was a battery distributor once upon a time and quality of construction separates the good, the bad, and the ugly. Everyone uses the same materials; lead, sulfuric acid, trace elements, water. There is no magic potion involved. The more lead/electrolyte available for chemical reaction, the more electric current will be produced. We had a saying regarding choosing a superior battery-Buy your batteries by the pound.
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Old 07-12-2015, 08:50 PM   #13
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I can't afford $750 per battery, I can afford 4 Trojans and they will fit in the compartment


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Old 07-12-2015, 08:52 PM   #14
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Not my point at all. . All I was saying, is that even though I have some of the best 6 volt batteries out there, there is no advantage 6 volt vs. 12 volt batteries. 6 volt is not better that 12 volt, just because it is 6.
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Old 07-12-2015, 11:23 PM   #15
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We I stalled a solar system. In a customers RV earlier this year. . He has 520watts of solar, PWM charge controller and 4, 121 ah 12 volt batteries, 3000 Watt inverter..... . He runs his ac with it
Just out of curiosity how long would he be able to run his ac with it? 10-15 minutes!
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Old 07-12-2015, 11:49 PM   #16
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2-3 hours actually. I was quite surprised my self. I would never sell a system as being able to do that, but they figured they would try. Worked great. The biggest problem is recovery time and solar output. There is enough power in the system, but you drain it down a lot and need to let it recover. That being said, if you need to turn it on foe 15, just to cool it down, it will do that, and still have lots of reserve left
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