Open Circuit Voltage Reading

Corresponding Specific Gravity

1.95

1.100

1.96

1.110

1.97

1.120

1.98

1.130

1.99

1.140

2.00

1.150

2.01

1.160

2.02

1.170

2.03

1.180

2.04

1.190

2.05

1.200

2.06

1.210

2.07

1.220

2.08

1.230

2.09

1.240

2.10

1.250

2.11

1.260

2.12

1.270

2.13

1.280

2.14

1.290

2.15

1.300

Specific

Gravity

Charge Rate

Amperes

Battery Capacity

(Amp Hrs)

45

55

70

80

High Rate Charging Time (Minutes)

1.125 to 1.150

35

65

80

100

115

1.150 to 1.175

35

50

65

80

90

1.175 To 1.200

35

40

50

60

70

1.200 To 1.225

35

30

35

45

50

Above 1.225

5

Note: Charge at low rate only until specific gravity reaches 1.250 at 80⁰ F.