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komsolar asked

2 x Mppt 75/15 Smart solar to share 1 x Lifepos 150Ah Lithium batterY?

Hi, I have 2 x Mppt 75/15 smart solar units each with 200w panels connected. Can I connect these two charge controllers to 1 x lithium battery 150ah? I have been using them with a 150Ah gel battery but I cannot halide the frequency of load shedding and the limited time to get the battery back to full charge, so life of the gel battery is compromised. im hoping lithium will be a better solution.


MPPT SmartSolarLithium Battery
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mvas answered ·

Programmed identically, they will "share" the amps during Bulk mode. And then during Absorb mode, one MPPT will slowly do more of the work, due to the constant voltage. Not a big problem. Eventually both will enter Float mode.

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