Mppt user settings

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bushy20
bushy20 Registered Users Posts: 4
Have 10x 1.2v 90 amp hour fully flooded nicad battries and have no specs for them. 
Can anyone suggest what settings for
equalising voltage?
boost voltage?
floating charging voltage?
over-discharge voltage?
over-discharge voltage?
have 500w array


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  • littleharbor2
    littleharbor2 Solar Expert Posts: 2,062 ✭✭✭✭✭
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    This might help. You can download a users guide from this website with all the specs for their batteries.
    Single Cell HC/HB NiCad battery (alcad.com)

    2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old  but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric,  460 Ah. 24 volt LiFePo4 battery bank. Plenty of Baja Sea of Cortez sunshine.

  • bushy20
    bushy20 Registered Users Posts: 4
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    thanks cheked it out but not much help. Have sent them same question so we c what comes back. 
  • littleharbor2
    littleharbor2 Solar Expert Posts: 2,062 ✭✭✭✭✭
    edited July 2023 #4
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    I see a recommended charge voltage of 1.65 volts per cell @ 18 amps. It's a start. Look up whatever you can find on NiCad batteries, online. You may find more general charging info. 

    2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old  but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric,  460 Ah. 24 volt LiFePo4 battery bank. Plenty of Baja Sea of Cortez sunshine.

  • bushy20
    bushy20 Registered Users Posts: 4
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    Thats about where ive gotten to too. For the other settings not so shure. Still looking so thanks for that. 
  • littleharbor2
    littleharbor2 Solar Expert Posts: 2,062 ✭✭✭✭✭
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    Best of luck to you. Maybe someone else will chime in.

    Oh, and welcome to the Forum.

    2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old  but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric,  460 Ah. 24 volt LiFePo4 battery bank. Plenty of Baja Sea of Cortez sunshine.

  • bushy20
    bushy20 Registered Users Posts: 4
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    Hope so. Have raised voltage from presets by 2 volts so is it I raise all other presets by 2 volts across all the fields.