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BATTERY CHARGING
 
 
warningWhen batteries are being charged, an explosive gas forms beneath the cover of each cell. Do not smoke near batteries on charge or which have recently been charged. Do not break live circuits at the terminals of the batteries on charge. A spark will occur where the live circuit is broken. Keep all open flames away from the battery.
Battery electrolyte temperature may temporarily be allowed to rise to 55 °C (131 °F). Increase of electrolyte temperature above 55 °C (131 °F) is harmful to the battery, causing deformation of battery cell, decrease in life of battery, etc.
 
 
CHARGE RATE
Recommended rate and time for fully discharged condition (flat discharged) is shown below. When the specific gravity of electrolyte keeps 1.220 to 1.290 for more than one hour, charging should be stopped.
 
 
Charge Rate Chart
BatteryCharging time
75D23L80D26L
Slow charging5 amps 11 hours5 amps 11 hours
10 amps 6 hours10 amps 6 hours
Fast charging20 amps 3 hours20 amps 3 hours
30 amps 2 hours30 amps 2 hours