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Presenting, SF 500 and 650, the next generation tubular batteries designed specially to withstand long and frequent powercuts
  • Tublar Technology
  • Electrolyte level indicator
  • High Acid volume per ampere hour
  • Deep cycle design
  • Resistance to abuse
  • Tower type design
  • common SideVenting
  • Conforms to IS 13869 - 1992
  • Very long life
  • User friendly
  • Acid volume per ampere hour is 30% more than that of ordinary tublar batteries.It acts as a collant and also ensure maintenance
  • Suited for use in areas of frequent power cuts (800to 1000 cycles of deep discharge as against 300/400 cycles of other batteries)
  • Can withstand overcharge better
  • Occupies less floor space, totally new look
  • Less Pollution, environment friendly
  • Ensure consistent quality
The next generation tublar battery designed specially to withstand long and frequent powercuts. It is the ultimate inverter battery
Model Capacity at 27°C when discharged at C20 upto 1.75 vpc(1.280 sp. gr) Dimension (+/3-mm)



Length Width Height*
 Weight(kg+/-5%)



Dry Filled
Volume of Electrolyte (1.220 sp. Gr) Initial charge Minimum AH input(AH) Initial Charge at constant Current (A)
Start (upto 2.36) Filled(upto 2.75 vpc)
Constant Potential Limited Current (Amps) Trickle Charge (Current n mA)
Min Max
ST 500 150 Ah 500 187 430 33.80 60.05 23.80 540 14.4 7.2 30 120 480
ST 650 200 Ah 500 187 430 45.00 72.05 21.60 720 19.2 9.6 40 160 640


*The height mentioned is upto terminal top.
Hours 10 5 3 1
Capacity Ah ST500 120 100 86 60
ST650 160 133 115 88
Inverter Rating VA DC input voltage Back-up Duration
6hrs 5hrs 4hrs 3hrs 2hrs 1hrs
300 12 ST650 ST650 ST500 ST500 ST500 ST500
500 12 2P ST500 2P ST500 2P ST500 2P ST650 ST500 ST500
24 2S ST500 2S ST500 2S ST500 2S ST500 2S ST500 2S ST500
700 12 2P ST650 2P ST650 2P ST650 2P ST500 ST650 ST650
24 2S ST650 2S ST650 2S ST500 2S ST500 2S ST500 2S ST500
1000 12 3P ST650 3P ST650 3P ST500 2P ST650 2P ST650 2P ST650
24 2S*2P ST500 2S*2P ST500 2S*2P ST500 2S ST650 2S ST650 2S ST650
1300 24 2S*3P ST650 2S*3P ST650 2S*2P ST500 2S*2P ST500 2S ST650 2S ST650
48 4S ST650 4S ST650 4S ST500 4S ST500 4S ST500 4S ST500
24 2S*3P ST650 2S*3P ST650 2S*3P ST650 2S*3P ST650 2S*2P ST650 2S ST650
2000 48 4S*2P ST650 4S*2P ST500 4S*2P ST500 4S ST650 4S ST500 4S ST650
 
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