Charging Procedure

TOOLS REQUIRED
GM P/N 12303040 Battery Side Terminal Adapters

NOTE: Turn OFF the ignition when connecting or disconnecting the battery cables, the battery charger or the jumper cables. Failure to do so may damage the PCM or other electronic components.

Important: Do not charge a battery with a green hydrometer dot unless it has just been discharged, such as in cranking.

1. When charging side-terminal batteries while on-vehicle, use the following procedure:
1.1. Turn OFF the charger.
1.2. Connect the charger positive lead to the positive booster cable terminal located in the engine compartment on the right side.
1.3. Connect the negative charger lead to a solid engine ground, such as the generator mounting bracket.

NOTE: Refer to Fastener Notice in Cautions and Notices.




2. When charging side-terminal batteries out of vehicle, install battery side terminal adapters. Make sure all battery terminals are clean and tight.

Tighten
Tighten the battery side-terminal adapters to 15 N.m (11 lb ft).

3. Best results occur when a battery is charged at room temperature. An extremely cold battery may not accept current for several hours.
4. Charge the battery until the hydrometer has a green dot.
5. Inspect the battery every halt hour after starting the battery charger.
6. Tap the hydrometer lightly to dislodge any air bubbles. The bubbles may cause a false indication.
7. After charging, load test the battery.