Charging Procedure Individual Panasonic Batteries
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
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.
NOTE:
Refer to Fastener Notice in Cautions and Notices.
IMPORTANT:
- Remove the ESB trim cover and ESB intermediate cover. Refer to Energy Storage Box (ESB) Trim Cover Replacement (5.3L Engine w/RPO HP2) and Energy Storage Box (ESB) Intermediate Cover Replacement (5.3L Engine w/RPO HP2) .
- Isolate the battery to be tested or charged.
- Install the test adapters on the terminals, refer to J 42000-30 and hand tighten only.
Automatic Battery Charger
Use the following procedure to charge the battery:
- Turn OFF the charger.
- Ensure that all of the battery terminal connections are clean and tight.
- Connect the charger positive lead to the battery positive terminal and the negative charger lead to the negative battery terminal.
- Turn ON the charger and set to the automatic setting.
- Inspect the battery every half hour after starting the battery charger.
- Charge the battery until the until the taper-rate charger indicates that the battery is fully charged.
- Estimate the battery temperature by feeling the side of the battery. If it feels hot to the touch or its temperature is over 45° C (125° F), discontinue charging and allow the battery to cool before resuming charging.
- After charging, test the battery. Refer to Battery Inspection/Test (Non-HP2) or Battery Inspection/Test (HP2) .
Manual Battery Charger
- If charging with a manual battery charger use the following procedure to ensure proper results.
- Use of any boost charging method will cause damage to the Panasonic Battery.
- Monitor battery charging every 30 minutes.
Panasonic Battery Charge Procedure - Manual Charger
| Step | Current Limit | Max. Voltage | Charging Time |
|---|---|---|---|
| 1 | 12 amps | 15.0 V | 0.5 hrs |
| 2 | 6 amps | 15.0 V | 0.5 hrs |
| 3 | 3 amps | 15.0 V | 0.5 hrs |
| 4 | 1.5 amps | 15.0 V | 1.0 hrs |
| Total | - | - | 2.5 hrs |
After charging, test the battery. Refer to Battery Inspection/Test (Non-HP2) or Battery Inspection/Test (HP2) .