SF STANQUEENHome -> Sf Industrial

Features

  • Thick Plates for Long Life
  • Enhanced Service life
  • Through partition inter-cell welding ensures better Voltage profile on discharge
  • Abuse ResistantElectrolyte level indicator for easy top-up.
  • Steady Discharge during power cuts
  • High Rate Discharge performance
  • User Friendly

Advantages

  • Better thermal management
  • Special polyethylene separator.
  • Customized exclusively for inverters
  • Better Reliability
  • Expected life - 2 years plus - under arduous conditions.
  • More than 20% extra electrolyte (in SQ500+) which means lesser topping-up frequency and an unhindered performance
  • Easy maintenance

Applications

  • Home UPS & Inverters

Technical Specification for SF STANQUEEN

SPECIFICATIONS CHART
Battery
Type
Nominal
Volts
Rated Capacity (Ah) at 27°C (1.280 sp.gr.) Dimensions (mm)±3 mm Weight ±5%, (Kg)
20 Hr @ 1.75V/Cell 10 Hr @ 1.75V/Cell 5 Hr @ 1.75V/Cell 3 Hr @
1.75V/Cell
1 Hr @
1.75V/Cel
Length Width Height* Dry Filled
STANQUEEN300 12 90 75 66 58 43 410 176 281 21.30 33.20
STANQUEEN350 12 100 85 75 65 48 410 176 281 22.00 33.00
STANQUEEN400 12 135 114 100 89 66 506 220 257 28.00 42.60
STANQUEEN500+ 12 150 125 110 97 72 520 220 273 33.00 50.83

* the height mentioned is up to terminal top.

BATTERY CHARGING SCHEDULE
Battery
Type
Nominal
Volts
Rated Capacity (Ah)
at 27°C, 20 Hr @ 1.75V/Cell
Initial Charge at Constant Current (A) Minimum Ah Input During Initial Charge Approx. Acid Qty (1.220 Sp. Gr.) in ltrs/Cell Constant Potential Limiting Current (A) Trickle Charge Current (mA)
Start (upto 2.36 vpc) Finish (upto 2.75 vpc) Min Max
STANQUEEN300 12 90 9.00 4.50 265 1.63 19 75 300
STANQUEEN350 12 100 10.20 5.10 300 1.50 21.5 85 340
STANQUEEN400 12 135 14.00 7.00 400 2.00 28.5 114 456
STANQUEEN500+ 12 150 15.00 7.50 440 2.50 32.0 125 500

a) For Constant Potential Charging Higher rates are permissible for Maximum Charger setting of 2.40 vpc.
b) Trickle Charge Voltage should be adjusted between 2.15 - 2.20 vpc.

Initial Charging Instructions

  • Fill up to the Required level with Battery Grade dilute Sulphuric Acid
  • Filling in specific gravity 1.220 ± 0.005 at 27°C
  • Rest period 12 hrs.
  • Minimum Ah input as per above chart.
  • In order to reduce the charging time, the initial charging current would be as specified till 2.35 Volts/Cell followed by finishing current as specified till 2.75 Volts/Cell.
  • However in both cases, Minimum Ah input to be given. Under no circumstances, battery temperature should exceed 50°C.
  • In case the temperature exceeds 50°C, adequate rest to be given till the electrolyte temperature comes to ambient temp. and charging to be continued
  • Condition of fully charged
    • 3 consecutive hourly readings of specific gravity and voltage become constant.
    • Top of charge voltage will be around 16.2V - 16.5V
    • All cells should gas freely.
    • Minimum Ah has been given
  • Specific gravity at fully charged condition - 1.250 ± 0.005 at 27°C

Normal Recharging Instructions

Battery should be re-charged through an Inverter at constant potential mode of 14.4V with limited current as specified. After battery potential reaches 14.4V, the battery should continue in float charge mode at constant potential of 13.5V.