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  1. M

    Battery voltage spike while battery is fully charged and disconnecting high load

    Hello everyone, I am using a 370W solar panel and a Epever 3210N solar charge controller charging a 12V 70Ah AGM battery. The system runs perfectly fine, but I recently noticed the following problem: When the battery is fully charged and I connect a load of for example 100W, the charge...
  2. M

    Low and inconsistent solar voltage on mppt solar charge controller

    Thank you for your quick answer. That's all correct. I am only able to get solar power when both panels are connected in series. One panel at the time will lead to 0W solar power, no matter the load connected. I verified voltage and amperage manually. I have no idea, why one panel alone would...
  3. M

    Low and inconsistent solar voltage on mppt solar charge controller

    Hello everybody, I have problems with my little off-grid solar system. It has two S-ENERGY SM-255PA8 panels connected in series to a Epever 3210N MPPT charge controller and a 12V 70Ah AGM battery is being used. Load connects to a 500W inverter. The solar panels are used, I cannot tell how old...
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