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Old 07-10-2015, 12:52 AM   #11
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Connect the positive wire from the controller to the positive of one battery and the negative from the controller to the neg of the OTHER battery.
Remember, you are not going to get all 40 watts but for a very short time each day and on cloudy days, an even shorter time. 40 watts is MAX, not continuous, and that isn't even considering loss in wiring and probably around 90% to 95% efficiency which is the industry standard.
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Old 07-10-2015, 01:10 AM   #12
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Thanks. I do fully understand all that. We're not hard core dry campers. Well, at least not yet. Althiugh, here in alberta, we do tend to get numerous hail storms, not sure I'd be comfortable installing them on the roof. This is just to keep em topped up, nothing more, nothing less for now. Thanks for your reply!
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Old 07-10-2015, 08:26 PM   #13
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No problem. Several people have reported getting hit with golfball sized hail with no damage to panels. I can't confirm or deny any of these reports and have not experienced hail. The panels are very strong and I believe they would take quite a beating before breaking. I'm betting 6 panels on it!
Yesterday I turned on the frig [115vac] and two Maxxy ceiling fans and let them run all night [97* here]. This morning at 10:00, the solar system was producing 58 vdc at 12 amps into the battery bank. By 1:30 the batts were up to 13.2vdc. I do love solar!
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Old 07-10-2015, 10:03 PM   #14
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Thanks for the info my friend, I appreciate it.
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Old 07-11-2015, 06:41 PM   #15
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You guys are the best. I will share this information with Santa Bob. Looking forward to some solar power.
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Old 07-16-2015, 09:01 PM   #16
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Has anybody ever put in a battery selector switch? That way you can charge coach batteries and if needed top off the vehicle battery(s)? was wondering if a worthwhile exercise for the sake of a bit of #10 wire and a switch....
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