8v golf cart batteries,howe to wire for 24V?

patdufopatdufo Posts: 1Registered Users
I have 6 8v golf cart batteries and I am trying to make 24v?series conection that I used with 4 6v batteries doent work because I am left over with 2 positive and 1 negative?every way that I tried ended up 16v?

Comments

  • MrM1MrM1 Posts: 273Registered Users ✭✭✭
    edited June 29 #2
    Maybe I'm not seein what you're sayin. Wouldn't that configure as 3S/2P
    REC TwinPeak 2 285W 3S-3P 2.6kW-STC / 1.9kW-NMOT Array / MN Solar Classic 150 / 2017 Conext SW 4024 Inverter latest firmware / OB PSX-240 Autotransfomer for load balancing / Trojan L16H-AC 435Ah bank 4S connected to Inverter with 7' of 4/0 cable / 24 volt system / Grid-Assist or Backup Solar Generator System Powering 3200Whs Daily / System went Online Oct 2018 / System, Pics and Discussion
  • mcgivormcgivor Posts: 2,164Solar Expert ✭✭✭✭✭
    edited June 29 #3
    patdufo said:
    I have 6 8v golf cart batteries and I am trying to make 24v?series conection that I used with 4 6v batteries doent work because I am left over with 2 positive and 1 negative?every way that I tried ended up 16v?
    There is no way with 6 × 6V batteries to achieve a series parallel configuration for 24V, it's either use 4 in series ~ 200Ah, or 8 in series parallel, 4 in each string × 2 for~400Ah.

    Edit. Disregard abuse statement for 8 volt  batteries.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery bank 

  • BB.BB. Posts: 27,785Super Moderators admin
    8 (eight) volt batteries... Yes, 3x in series by 2x parallel strings (6 batteries total).

    Should work fine. Make sure they are fully charged (or each battery at a similar level a charge--You don't want a discharged battery in series with a charged battery--If you "equalize" the battery bank (over charge at ~30-32 volts), you are pushing excessive charging current through the full battery to get charging current to the discharged battery.

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • mcgivormcgivor Posts: 2,164Solar Expert ✭✭✭✭✭
    Missed the 8 volt, need to buy some stronger reading glasses.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery bank 

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