replacing rolls 450 ah battery set

petertearaipetertearai Posts: 297Solar Expert ✭✭✭
Hi . 
My 450 ah rolls batterys are near end of life . 24 volt system .
Suggestions ?  . 
Ive discounted lithium . so another wet cell set  Trojan or Hella endurant , 
Gell  , silicon , Carbon  
Rolls are nearing 8 years, but cant get rolls again in Newzealand
2225 wattts pv . Outback 2kw  fxr pure sine inverter . fm80 charge controller . victron battery monitor . 24 volts 450 ah surette batterys . off grid  holiday home 

Comments

  • mcgivormcgivor Posts: 1,608Registered Users ✭✭✭✭
    edited April 10 #2
    Check with Trojan if the SIND line is available in New Zealand , they are designed for solar use, only thing I can see is a lower SG than their traction type batteries, but good to see charging rate and absorbtion hours stated, unlike many with charging rates based on grid charging. Flooded are always the  better choice, In my opinion.
      1500W, 6× Schutten 250W Poly panels , Schneider 150 60 CC, Schneider SW 2524 inverter, 8×T105 GC 24V nominal 

  • EstragonEstragon Posts: 2,180Registered Users ✭✭✭✭
    +1 on plain FLA. As well as trojans, I think US battery and other big outfits have NZ distibution.
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
  • BB.BB. Posts: 27,333Super Moderators admin
    edited April 10 #4
    If you have a good supply of "cheap" distilled water and can possibly add some solar panels (10-30% more--Depends on your current power usage, battery bank, array size, etc.), you might look at forklift/traction batteries.

    Some issues with forklift batteries tend to include
    • higher charging voltages (16/32/64 volts) which can be an issue for some inverters and battery chargers.
    • Higher distilled water usage (and smaller reservoir in cells means checking levels more often).
    • And that one battery can way 1/2 to 1+ ton very easily (need crane/concrete floor/lift gate/loading dock to move).
    • Need a larger solar array because charging forklift batteries tends to be less efficient/higher self discharge rates.
    The individual cells in many FL batteries are replaceable--A few folks have gotten used batteries, replaced a couple bad cells, and then used for many more years.

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • petertearaipetertearai Posts: 297Solar Expert ✭✭✭
    Thanks for replys . will check out if the trojan snd06610 is available here . thanks for the link . the specs certainly look good . good to see the cycle / depth of charge curve . looks impressive.
    Bill thanks for the info about fork lift battery's ... but to get more pv id need another charge controller and not keen on the weights.
    And also thanks to you for your input on this site I certainly appreciate it ..
    of course thanks to other contributers .
    2225 wattts pv . Outback 2kw  fxr pure sine inverter . fm80 charge controller . victron battery monitor . 24 volts 450 ah surette batterys . off grid  holiday home 
  • WaterWheelWaterWheel Posts: 251Registered Users ✭✭✭
    I can't find the warranty listed on Trojan's warranty page.      Does anybody know what the warranty is?

    Conext XW6848 with PDP, SCP, 80/600 controller, and conext battery monitor

    18 SW280 panels on Schletter ground mount

    48v 790 amp/hr Crown battery bank

  • EstragonEstragon Posts: 2,180Registered Users ✭✭✭✭
    According to NAWS (L16RE), it's 2yrs replacement & 5yrs prorated for 7yrs total.
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
  • WaterWheelWaterWheel Posts: 251Registered Users ✭✭✭
    thanks

    Conext XW6848 with PDP, SCP, 80/600 controller, and conext battery monitor

    18 SW280 panels on Schletter ground mount

    48v 790 amp/hr Crown battery bank

  • EstragonEstragon Posts: 2,180Registered Users ✭✭✭✭
    Note the Trojan industrial line has a slightly longer warranty - 3 years replacement for 8 total.
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
  • petertearaipetertearai Posts: 297Solar Expert ✭✭✭
    hi . checked out the Trojan solar snd they dont bring them into NZ .pity as they look like a good battery by the specs .
    2225 wattts pv . Outback 2kw  fxr pure sine inverter . fm80 charge controller . victron battery monitor . 24 volts 450 ah surette batterys . off grid  holiday home 
  • mcgivormcgivor Posts: 1,608Registered Users ✭✭✭✭
    Here is a supplier who sells Hoppecke batteries in New Zealand, they are supposed to be an excellent product 
    http://s4solar.co.nz/products/hoppecke_batteries/
      1500W, 6× Schutten 250W Poly panels , Schneider 150 60 CC, Schneider SW 2524 inverter, 8×T105 GC 24V nominal 

  • petertearaipetertearai Posts: 297Solar Expert ✭✭✭
    yep the hoppecke battery's look good . had a quote on set of 2 volt batterys. more than I would like to pay.. still often you get what you pay for.
    Thanks for suggestions .
    2225 wattts pv . Outback 2kw  fxr pure sine inverter . fm80 charge controller . victron battery monitor . 24 volts 450 ah surette batterys . off grid  holiday home 
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