GFMJ (OPzV) Series

VRLA Gel Battery(200AH-3000AH)

The GFMJ (OPzV) series tubular gel battery is the product developed through the international advanced gel technology with outstanding performance and has been widely used in the world. With tubular plate, corrosion-resistant alloy materials, special gel electrolyte, micro-pore separator and advanced heat-sealing technology, GFMJ series battery devotes itself to provide more stable and reliable backup power for communication ,energy storage and electrical systems .

Main applications

  • Deep cycling energy storage application
  • Solar& wind energy storage system
  • Off-grid & bad-grid hybrid sites
  • Floating applications for telecom sites


  • Long life design for cyclic or float application
  • Excellent charge acceptability and deep cycling performance
  • Excellent over discharge recovery capability
  • Superior charging & discharging ability in low current
  • Extend service life under high temperature

Technical Features

  • According to DIN-40742 standards, design life of 20 years
  • Tubular plate & special gel electrolyte, which can prevent active material falling and avoid acid stratification
  • High stability and security, millions of batteries are in service
  • Higher thermal capacity & better thermal diffusivity


ModelDatasheetCapacityInternal Resistance (full charged)Short- circuit currentRecommended Charging Current
GFMJ-200 GFMJ-200 Datasheet200Ah@10hr to 1.80V @25℃Approx.0.68mΩ,25℃2956A30A
GFMJ-250 GFMJ-250 Datasheet250Ah@10hr to 1.80V @25℃Approx.0.62mΩ,25℃3215A37.5A
GFMJ-350 GFMJ-350 Datasheet350Ah@10hr to 1.80V @25℃Approx.0.46mΩ,25℃4305A52.5A
GFMJ-420 GFMJ-420 Datasheet420Ah@10hr to 1.80V @25℃Approx.0.42mΩ,25℃4750A63A
GFMJ-600 GFMJ-600 Datasheet600Ah@10hr to 1.80V @25℃Approx.0.35mΩ,25℃5706A90A
GFMJ-800 GFMJ-800 Datasheet800Ah@10hr to 1.80V @25℃Approx.0.32mΩ,25℃6297A120A
GFMJ-1000 GFMJ-1000 Datasheet1000Ah@10hr to 1.80V @25℃Approx.0.27mΩ,25℃7439A150A
GFMJ-1200 GFMJ-1200 Datasheet1200Ah@10hr to 1.80V @25℃Approx.0.24mΩ,25℃8314A180A
GFMJ-1500 GFMJ-1500 Datasheet1500Ah@10hr to 1.80V @25℃Approx.0.23mΩ,25℃8837A225A
GFMJ-2000 GFMJ-2000 Datasheet2000Ah@10hr to 1.80V @25℃Approx.0.22mΩ,25℃8903A300A
GFMJ-2500 GFMJ-2500 Datasheet2500Ah@10hr to 1.80V @25℃Approx.0.22mΩ,25℃9131A375A
GFMJ-3000 GFMJ-3000 Datasheet3000Ah@10hr to 1.80V @25℃Approx.0.21mΩ,25℃9360A450A


Normal Voltage2V
Recommended Operating Temperature20℃~25℃(68˚F ~ 77˚F)
Design Life @25ºC20 Years
Charging Voltage  @25˚C(77˚F)Float: 2.23 V/cell
Equalize: 2.35 V/cell
Self Discharge @25˚C(77˚F)≤20%(after 180 days storage)