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  • solar panels and batteries

    Hi would like to know

    What battery bank for 800ah 48v ? for 8 hours use.

    So how to size with less batteries.

    And how many panels to drive it.

    Will be using 220v airco with about totally 3000w

    thnks in advance

  • #2
    Originally posted by masbango View Post
    Hi would like to know

    What battery bank for 800ah 48v ? for 8 hours use.

    So how to size with less batteries.

    And how many panels to drive it.

    Will be using 220v airco with about totally 3000w

    thnks in advance
    Every question is answered in the Off Grid Solar Panel Stickies. For example a 48 volt 800 AH battery would provide you roughly $1 per day worth of electricity of 8 Kwh and require a 4000 watt solar panel and 80-amp controller. Should not cost you a penny more than $20,000 today and $8000 every 5 years replacing 2500 pounds of batteries.

    t all starts by determining how many Watt Hours you need in a day, location, and time of year use. Until you have done that, do not Pass Go. So go to the Off Grid Solar Panel sub-section and start with this one.

    Solar Off Grid Design

    What battery bank for 800ah 48v ? for 8 hours use.
    This question is complete nonsense. Let me ask you a question. Who is buried in Grant;s Tomb?
    Last edited by Sunking; 03-25-2017, 11:38 AM.
    MSEE, PE

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