andys
Solar Newcomer
Posts: 3
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Post by andys on Oct 19, 2018 15:48:11 GMT
Hello, I suspect that the 100 W Solar Panel on top our our travel trailer is not charging the batteries and hope someone can help me solve or troubleshoot the issue. We parked our travel trailer on October 1 with fully charged batteries in a storage lot near where we live. October has been very sunny. The last two weeks each day was sunny. Nothing is drawing power from the batteries. When I went back to the trailer a couple of days ago, the battery voltage had dropped to 10.2 V. Attached are some pictures of the values that I got from the display on the Rover, taken on sunny day at about 2 pm. Below are the same values shown: Solar Panel Voltage: 16.6 V
Charging Current: 0.22 A
Battery Capacity: 0.0 %
Battery Voltage: 10.2 V
Load Current: 0.00 A
Accumulated AH: 0.1 AH Considering the weather and the setup, I would anticipate that the solar panel should be able to keep the batteries fully charged. Appreciate any suggestions that will help me solve the issue. Andy
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Post by bupkis on Oct 19, 2018 16:07:29 GMT
cycle trough the LCD readout and note system error code.
compare to manual and/or report error code.
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andys
Solar Newcomer
Posts: 3
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Post by andys on Oct 19, 2018 16:22:29 GMT
Error Code is E1. See attached picture. Attachments:
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Post by bupkis on Oct 19, 2018 16:50:44 GMT
battery over discharged. So its time to check the batts, 'water' level, find 120v and see if they will charge. My guess is they need replacing. When stored disconnect the neg from the batt so the trailer can not drain the batt, stuff like propane/co detector etc. you should be seeing 4-5A of charge but the battery is too low for the controller to work. here is the basic panel test video renogy.boards.net/thread/159/solar-panel-troubleshooting
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andys
Solar Newcomer
Posts: 3
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Post by andys on Oct 19, 2018 18:58:52 GMT
Ok, I will check this weekend. I will charge the fully at home, then place them back in the trailer.
My question still is why that the batteries did not remain charged with the solar panel. When I parked the trailer the batteries were fully charged. The 100 W panel should have been able to keep the fully charged.
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Post by bupkis on Oct 19, 2018 19:16:56 GMT
sitting at 10v for any length of time is hard to recover, charge em, let em sit and measure their voltage.
Why? wanna share the entire history of the batts? Their age, all the abuse they have experienced, etc. Ever used a hydrometer? Do you own a voltmeter?
Measure each batt's voltage separately, maybe one has a bad cell.
it could be a controller problem.
Yes, 100w should be plenty to maintain healthy batteries with no load on them.
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Post by tattoo on Oct 19, 2018 19:42:14 GMT
You are very sure there is NO draw on the battery what so ever?
Way more info is needed about the batteries history? What kind, service history etc....
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