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Post by victori on Dec 18, 2017 5:27:09 GMT -8
I have a kit with a 100 watt solar panel (1ea) with a wanderer charge. I am using two 122ah deep cycle batteries. Ask how many additional batteries you could add to the system.
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Post by rabird on Dec 18, 2017 5:56:13 GMT -8
add as many as you can piss ant! I don't believe that is the best question to ask. I suggest a MINIMUM of 100w of solar for ever 100ah of battery capacity. I suggest if you use 50ah a day then you can never fully recharge via the min above and you would need more solar. This time a year 100w panel would have a hard time 'making' 15ah/days I reference solar irradiace charts/calculators to estima how much sun there is for different locations/time of year/tilt. like www.solarelectricityhandbook.com/solar-irradiance.html |
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Post by tattoo on Dec 18, 2017 6:14:06 GMT -8
I have a kit with a 100 watt solar panel (1ea) with a wanderer charge. I am using two 122ah deep cycle batteries. Ask how many additional batteries you could add to the system. The correct answer to your question is NONE... But it really depends on your draw... |
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Post by russthebuss on Jan 20, 2018 8:09:17 GMT -8
Say it snows...panels get covered for a few days with said snow. The temp drops to -5f at night and you batteries freeze...is there any saving them?
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Post by tattoo on Jan 20, 2018 11:31:45 GMT -8
Say it snows...panels get covered for a few days with said snow. The temp drops to -5f at night and you batteries freeze...is there any saving them? The panels or the batteries?? I doubt it would hurt either one... |
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Post by russthebuss on Jan 24, 2018 7:44:37 GMT -8
The batteries. Sorry for the late reply. Lead Acid Trojan T-105re...froze solid. Since this I have thawed them out and put them on a battery charger/maintainer and they seem to get to full charge and then after about a day of maintain mode they'll drop from 100 to 80, 70, even as far as 61% last night under no load what so ever.
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Post by rabird on Jan 24, 2018 9:08:52 GMT -8
russthebuss, batts must have been well discharged to freeze, I believe your data suggests they are no good above 50% charge they won't freeze in very cold, here some freeze data www.trojanbattery.com/pdf/WP_DeepCycleBatteryStorage_0512.pdfone of my little sealed gate opening batts popped it top last yr @25f it was already a goner and connect in an imbalanced manner so it discharged while the other one did not! |
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