Battery: Testing and Inspection

1. Check the battery for obvious damage, such as a cracked or broken case or cover, which could permit the loss of electrolyte. If damage is obvious, replace the battery.

CAUTION: Do not charge the battery if the hydrometer is clear or light yellow Instead, replace the battery If the battery feels hot, or if violent gassing or spewing of electrolyte through the vent hole occurs, discontinue charging or reduce the charging rate to avoid personal injury.

IMPORTANT: The battery temperature must be estimated by touch, taking into consideration the ambient temperature to which the battery has been exposed for the preceding few hours.

2. Check the hydrometer. If the green dot is visible, go to the load test procedure. If the indicator is dark, but green is not visible, charge the battery. For charging a battery removed from the vehicle.
3. Connect a voltmeter and a battery load tester across the battery terminals.
4. Apply a 300-ampere load for 15 seconds to remove the surface charge from the battery.
5. Remove the load.
6. Wait 15 seconds to let the battery recover.
7. Apply a 270-ampere load.
8. If the voltage does not drop below the minimum listed, the battery is good and should be reinstalled. If the voltage is less than the minimum listed, replace the battery.