A VRLA Gel battery utilizes a one way, pressure-relief valve system and Gelled (immobilized) electrolyte to achieve a recombinant technology. Gelled Electrolyte is formed by addition of silicon dioxide (SiO2) to diluted Sulphuric acid (H2SO4). Fused gelled electrolyte not only acts as electrolytic medium for ion movement but also provides infinite small crevices necessary for recombination reaction. Oxygen normally produced on the positive plate is transported to negative plates through crevices formed in fused gel and it is then absorbed by negative plates. This surpasses the production of hydrogen at the negative plates. Water (H2O) is produced instead, retaining the moisture within the battery. It never needs watering, and should never be opened as this would expose the battery to excess oxygen from air.

  • Premium maintenance-free design requires no electrolyte maintenance unlike deep cycle flooded batteries that require frequent checking an adjustment of electrolyte level.
  • High pressure venting system leads to high oxygen recombination efficiency.
  • Because there is no liquid type electrolyte, it will not leak out of battery if tipped on its side.
  • Higher tolerance against damage from deep discharge.
  • Extended shelf life, low self-discharge rate.
  • Enhance recharging efficiency.


  • Do not need immediate recharge after discharging.
  • Delivers the best combination cycling and deep cycle services.
  • Prevention of Thermal runaway through efficient heat dissipation.
  • Stable quality & High reliability.
48 month WARRANTY


Model Part Number Nominal Voltage (V) Capacity* in Ah Length +/- 3mm Width +/- 3mm Height +/- 3mm upto lid top Weight (kg)+/- 5% Charging current (A) Layout
GelMagic 1500 FGM0-GelMagic 1500 12 150 401 189 407 50 15
*At 27°C when discharged at C20 up to 1.75 vpc.


If Summation ofElectrical Load Max Inverter Rating System Voltage


Technology for Grid Alloy

  • Corrosion resistant
  • Low self discharge
  • Reliability at high temperature
  • Even after keeping idle for 2 years, 50% of capacity is retained
  • Higher tolerance for overcharging
  • Absolutely maintenance free
  • Suitable for use in extreme conditions
  • Increased shelf-life
High quality silica gel used in acid as electrolyte
  • Minimum fluctuation in voltage and capacity over high temperature range (-30 ° C to 65° C)
  • Deep discharge resistance is extremely high
  • Lower internal temperature rise leads to longer service life
  • Immediate charging after deep discharge not required
  • Excellent recovery from deep discharge
  • High reliability, longer life



  • Extremely low gas extrication (25% of flooded battery)
  • Lesser explosion and fire risk
  • Ideal for use where ventilation is poor, labs, industries
Plates surrounded by Gel
  • Lesser tendency of thermal run away.
  • Enhanced cycle life and better performance.
Special plate design
  • Increased protection against grid corrosion.
  • Ability to withstand arduous service conditions
Special paste recipe
  • Enhanced charge acceptance
  • High recharging efficiency
Special profile separator together with low resistant glass mat on flat surface
  • Fully protect the design against internal shorts and plate shedding.
  • Greater power output.
  • Lower internal temperature rise.
  • High reliability low degradation rate, greater protection against vibrations.
  • Longer service life.
One way Pressure Relief Valve
  • Consistent opening & closing pressure
  • Better Maintenance Free characteristics

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  • Unique features and superior technology: Advanced Hybrid Technology that is best suited to withstand high temperatures as well as thick plate construction with special paste formulation. Special hybrid alloy system leading to low water loss and dual plate separation(PE+GM) that reduces the possibility of premature failure
  • Easy maintenance: Float/float guide to indicate electrolyte level
  • Easy handling/spill-proof: Moulded handles to ensure easy handling. Top vented lid with anti-splash guards fitted with coin flush vent plugs
  • Fume and leak resistant: Spark arrestor fitted in float to restrict fumes and acid during operation. Clean top with no surface leakage
  • Ready for commissioning: Batteries supplied in factory-charged condition
36 month WARRANTY


If Summation of
Electrical Load
Max Inverter Rating System Voltage Recommended Battery Capacity for different Backup time
5 Hrs. 4 Hrs. 3 Hrs. 2 Hrs. 1 Hrs.
160 Watt 250 VA 12V
161 – 240 Watt 350 VA IB1500
241 – 440 Watt 650 VA / 700 VA 2P – IB1500
2P – INSBRT1500
441 – 600 Watt 850 VA / 900 VA 2P – IB1500
2P – INSBRT1500
601 – 700 Watt 1050 VA / 1100 VA 3P – IB1500
3P – INSBRT1500
2P – IB1500
2P – INSBRT1500
701 – 1000 Watt 1450 VA / 1500 VA 2P – IB1500
2P – INSBRT1500
1000 Watt 1450 VA / 1500 VA 24V 2SX2P – IB1500
2SX2P – INSBRT1500
2SX2P – IB1500
2SX2P – INSBRT1500


  • 1Cut-off voltage of inverter should be 10.5V (Minimum).
  • 2There should be a periodic Bench-Charging of the battery after every three months from the date of installation.
  • 3S = Series connection; P = Parallel connection; e.g. 2S x 2P = A string containing 2 nos. batteries in series and 2 nos. such strings in parallel Consideration of Electrical Load
  • Details1 no. Fan = 80 Watt1 no. Tube light = 40 Watt


Battery Type Part Number Ref. C20 Capacity (Ah) Maximum Overall Dimension (mm) Nominal Filled Weight (kg) Electrolyte Volume (litre) Charging Current (A) Acid level Indicator Battery Layout
(with float)
IB1500 FIB0-IB1500 150 508 222 257 264 41.0 11.0 10.5 PRESENT
INSBRT1500 FIB0-INSBRT1500 150 508 222 257 264 41.5 10.6 10.5 PRESENT