Charging Procedure

TOOL REQUIRED:
A/C Delco P/N ST-1 201 or GM P/N 12303040 Battery Side Terminal Adapters

1. Battery with green hydrometer dot showing do not require charging unless they have just been discharged (such as in cranking vehicle).

Battery Side Terminal Adapters:

2. When charging battery with side terminals, install adapter kit (AC Delco P/N ST-1201 or GM P/N 12303040 or equivalent). The adapter should be snugged up against the battery terminals to keep resistance between the adapter and the battery terminal to a minimum. Recommended battery side terminal adapter torque is 15 N.m (11 lb. ft.).
3. Make sure all battery charger connections are clean and tight.
4 For best results, battery should be charged while electrolyte and plates are at room temperature. A battery that is extremely cold may not accept current for several hours after starting battery charger.
5. Charge battery until green dot of built-in hydrometer appears. Refer to "Charging Time Required". Charging Time Required

Battery should be checked every half-hour while charging. Tap the hydrometer lightly on top to dislodge any air bubbles that might cause a false indication.
6. After charging, battery should be tested. Refer to "Battery Testing". Testing and Inspection