Battery: Service and Repair

BATTERY CHARGING

CAUTION: When 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 Chart:

CHARGE RATE
If the battery specific gravity is below 1.220, the battery should be charged as outlined.

When the battery fluid specific gravity reaches 1.250-1.290 and the constant is maintained for more than an hour, charging should be stopped.

NOTE: If the battery is charged and the specific gravity does not increase to the specified level, the battery should be replaced; do not overcharge.