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What do I set the battery parameters on my Charge Controller?

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  • What do I set the battery parameters on my Charge Controller?

    I have a MightMax 9Ahr battery. The specs on the battery says: Standby 13.63 - 13.8V and Cycle Use 14.5-14.9V. I have this charge controller: https://www.amazon.com/Controller-B...ocphy=9012114&hvtargid=pla-349062348230&psc=1

    I have three settings I need to make on my charge controller. What should those settings be?
    1. High Voltage Disconnect (PV off)
    2. Low Voltage Disconnect (load off)
    3. Load On

    Thanks,

  • #2
    I would start out conservatively with HVD of 14.5 and 12.0 for LVD. Load on sounds like a LVD reconnect voltage and could be higher than 12.1.

    You need more information about the chemistry and absorb voltage before i would connect the charger for more than a few minutes. What is the resting voltage of the battery now?
    9 kW solar, 42kWh LFP storage. EV owner since 2012

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