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


Model Datasheet Capacity Internal Resistance (full charged) Short- circuit current Recommended Charging Current
GFMJ-200 GFMJ-200 Datasheet 200Ah@10hr to 1.80V @25℃ Approx.0.68mΩ,25℃ 2956A 30A
GFMJ-250 GFMJ-250 Datasheet 250Ah@10hr to 1.80V @25℃ Approx.0.62mΩ,25℃ 3215A 37.5A
GFMJ-350 GFMJ-350 Datasheet 350Ah@10hr to 1.80V @25℃ Approx.0.46mΩ,25℃ 4305A 52.5A
GFMJ-420 GFMJ-420 Datasheet 420Ah@10hr to 1.80V @25℃ Approx.0.42mΩ,25℃ 4750A 63A
GFMJ-600 GFMJ-600 Datasheet 600Ah@10hr to 1.80V @25℃ Approx.0.35mΩ,25℃ 5706A 90A
GFMJ-800 GFMJ-800 Datasheet 800Ah@10hr to 1.80V @25℃ Approx.0.32mΩ,25℃ 6297A 120A
GFMJ-1000 GFMJ-1000 Datasheet 1000Ah@10hr to 1.80V @25℃ Approx.0.27mΩ,25℃ 7439A 150A
GFMJ-1200 GFMJ-1200 Datasheet 1200Ah@10hr to 1.80V @25℃ Approx.0.24mΩ,25℃ 8314A 180A
GFMJ-1500 GFMJ-1500 Datasheet 1500Ah@10hr to 1.80V @25℃ Approx.0.23mΩ,25℃ 8837A 225A
GFMJ-2000 GFMJ-2000 Datasheet 2000Ah@10hr to 1.80V @25℃ Approx.0.22mΩ,25℃ 8903A 300A
GFMJ-2500 GFMJ-2500 Datasheet 2500Ah@10hr to 1.80V @25℃ Approx.0.22mΩ,25℃ 9131A 375A
GFMJ-3000 GFMJ-3000 Datasheet 3000Ah@10hr to 1.80V @25℃ Approx.0.21mΩ,25℃ 9360A 450A


Normal Voltage 2V
Recommended Operating Temperature 20℃~25℃(68˚F ~ 77˚F)
Terminal M10
Design Life @25ºC 20 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)

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