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8 volt golf cart style batteries recommendation 12V71N

Discussion in 'Technical Discussion' started by dennismc, Jun 26, 2017.

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  1. dennismc

    dennismc Senior Member

    Joined:
    Jan 29, 2009
    Messages:
    1,023
    Location:
    Vancouver BC
    Getting close to replacement time, what seems to be the best bang for the buck today ? starting only 32V
  2. g collis

    g collis Member

    Joined:
    Jul 15, 2015
    Messages:
    121
    Location:
    Saint Simons Island Georgia
    Lots of info on this subject. You'll get plenty of responses.
  3. rcrapps

    rcrapps Senior Member

    Joined:
    Sep 8, 2004
    Messages:
    4,670
    Location:
    Jax FL
    Define replacement time? Calendar date or loosing performance?



    East Penn, 19" flooded batteries have last us the longest, some 7+ years.
    I tap off the port third battery for 24Vdc equipment (10kw radar). The stb bank, #3 backs up the 24Vdc inverter when I want to sleep way late with no gen-set.

    There are AGMs available but I have found not worth the money vs same life span. They are also smaller and don't have the punch as the 19" flooded batts we have.

    Our ship;
    8, 8volt, 19" batts for 2 x 32v banks, 12V71TIs and ship.
    2, 12v 8Ds, gen-sets and 12Vdc equipment.
    4, 12v Trojan 27tmx making our 2x2, 24Vdc inverter bank.

    All flooded and money savers.
  4. dennismc

    dennismc Senior Member

    Joined:
    Jan 29, 2009
    Messages:
    1,023
    Location:
    Vancouver BC
    One side is 8 8v golf carts series parallel, they are good for at least another 3-5 yrs, the other side is experimental 3x12's for 36v, have been working good for 2 yrs, starting only but it's getting tome to go back to a 32v set up for that side also. I had poor luck with the 19" 8 v sets before so have been sticking with the golf carts..this change I will probably do in mid winter up here as will have to rewind the alternator.
    Gens are on 12 v using golf carts along with electronics for 12 v stuff.

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