GFMJ-420

VRLA Gel Battery

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  • 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

Main Application

Deep cycling energy storage application

Solar& wind energy storage system

Off-grid & bad-grid hybrid sites

Floating applications for telecom sites

Nominal Voltage2 V
Capacity420 Ah @10hr to 1.80 V @ 25˚C(77˚F)
Weight32.5kg (71.65 lbs)
DimensionsLength:145 mm(5.71 in) Width:206 mm(8.11 in) Height:470 mm(18.50 in) Total height:502 mm(19.76 in)
Internal Resistance (full charged)0.42 mΩ @ 25˚C(77˚F)
Short- circuit Current4750 A
Self Discharge @25˚C(77˚F)Less than 30% after180 days storage
Operating Temperature RangeDischarge: -20˚C~ 50˚C(-4˚F~ 122˚F) Charge: -20˚C~ 50˚C(-4˚F~ 122˚F) Storage: 5˚C~ 40˚C(41˚F~ 104˚F)
Recommended Operating Temperature20˚C~ 25˚C (68˚F~ 77˚F)
Recommended Charging Current63 A
Charging Voltage @25˚C(77˚F)Float: 2.23 V/cell Equalize: 2.35 V/cell
TerminalM10
Container MaterialsABS/ABS V0 (Optional)
Capacity Affected by Temperature(C10)105%@ 40˚C(104˚F) 74%@ 0˚C(32˚F) 50%@ -20˚C(-40˚F)
Design life @25°C(77˚F)20 years
F.V/Time
60 120 180 240 300 360 480 600 720 1200 6000 7200

1.80V

1.83V

1.85V

1.87V

1.90V

200

197

192

180

165

140

135

132

122

112

105

102

99

97

90

85

84

81

79.5

75

73

72

70

68

64

64

63

61

59.5

55

51

50

47

45

42

43

42

41

39

36

37.8

36.4

35

33.5

32

23.1

22.6

22

21.5

20.5

5.4

5.2

4.7

4.6

4.4

4.1

F.V/Time
60 120 180 240 300 360 480 600 720 1200 6000 7200

1.80V

1.83V

1.85V

1.87V

1.90V

369

372

364

350

315

257

252

248

235

218

205

200

195

190

173

167

162

155

151

144

143

141

137

132

122

124

123

120

118

108

96

94

90

87

81

80

79

78

75

70

70

68

66

64

62

45

44

43

42

40

10.5

10

9

9

8.5

8

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Manufactured using the latest technology and stringent quality control, our battery products are designed to exceed in performance and reliability.