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Old 04-08-2021, 02:16 AM   #1
samtron786
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Join Date: Aug 2016
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Default Solar Controller MPPT 100A

Hello,
I have ordered such a solar controller MPPT 100A
my problem that goes off every now and then
At the beginning it worked very well and now the battery is 12.8 V sometime will be switched off
many thanks

https://de.aliexpress.com/item/10050...8%2315607%2390
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Old 04-08-2021, 11:40 AM   #2
redwire
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Default Re: Solar Controller MPPT 100A

I would check the programming and see if it did not get scrambled or corrupted. Check that the correct battery type is programmed - lead-acid, lithium, LiPO4, and 12/24V.

If the programming is good, then look for a bad connection in your wiring, or inside there could be a cracked/bad solder joint. If you are too rough screwing in the terminal blocks, you can break the connection on the PCB.

I could not find a good manual for the charger controller. It seems to shut off if it is overheating, over or under-current. Than might be causing it to stop.

Or you just have too small a solar panel, cloudy days and the battery is going low.
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Old 04-10-2021, 03:26 AM   #3
samtron786
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Default Re: Solar Controller MPPT 100A

OK thank you
I'll test it
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