Battery Charging: Notes
WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
Tools Required: J 42000 Battery Tester
- For best results, use an automatic taper-rate battery charger with a voltage capability of 16 volts.
- A battery showing a green dot in the hydrometer (1) does not need to be charged unless the J 42000 has shown that the battery needs to be charged.
- A battery showing a dark dot in the hydrometer (2) should be charged unless the J 42000 has indicated no charge is needed.
- Do not charge a battery when the built in hydrometer is clear or yellow in the center (3). Tap the hydrometer lightly in order to dislodge any air bubbles. The bubbles may cause a false indication. If the hydrometer is still clear or yellow, replace the battery.
- The charging area should be well ventilated.
- Do not charge a battery that appears to be frozen; allow the battery to warm to room temperature and test it before charging.