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  1. Solarson

    EPEVER MPPT Solar Charge Controller 40A 150V PV Solar Panel Controller Question

    I forgot to mention I am building a 24 volt system. I get if I want to use all four panels into the EPEVER MPPT I need to do 2S2P. I understand which connectors to purchase to do 2S2P. I have to run the wire from 30 feet away. Will this 10 gauge wire do the trick...
  2. Solarson

    EPEVER MPPT Solar Charge Controller 40A 150V PV Solar Panel Controller Question

    I was thinking about running a small 12 volt system along side of it [(1) panel, (1) 20amp MPPT & (1) 12volt LiFePO4 100ah battery). All really cheap parts but functional. I will use that to light up my boathouse with 12 volt LEDs.
  3. Solarson

    EPEVER MPPT Solar Charge Controller 40A 150V PV Solar Panel Controller Question

    So, 150 volts is max....Got it. If I use 3 panels in series that will give me 121 Voc roughly, which would be about 20% lower input than the max. Can I do that?
  4. Solarson

    EPEVER MPPT Solar Charge Controller 40A 150V PV Solar Panel Controller Question

    I have a newly purchased EPEVER MPPT with a maximum input voltage of 150 volts. I have four 310 watt Longi solar panels with a measured open voltage of 40.3 volts each. If I series all four panels there will be a potential combined open circuit voltage of 161.2 volts. I am sure the EPEVER has...
  5. Solarson

    FIRST POST: Has anyone here had any luck finding used LifePO4 12v Batteries?

    Hey all, thanks in advance for your help. It is my understanding that many types of medical equipment use LiFePO4 12v batteries. Valence brand seems to be popular in the medical industry. Equipment such as surgical drills, mobility scooters, dialysis machines, EKG carts and many other electrical...
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