How to Use Battery Chargers (Power Tool Batteries)
1. Connect the power supply output plug to the input socket on the charger, and then plug the other side cord into an appropriate AC wall socket. The red & yellow charger light will blink together for 0.5 seconds then extinguish, indicating that the charger is ready.
2. Insert the battery pack into the charger, making sure the pack is fully seated in the battery cavity. The red charging light will blink at one second intervals indicating the charging process has begun.
3. The charger will show a steady red light when the battery pack is fully charged. If the battery is left in the charger after the battery is fully charged, it will automatically switch to trickle charge mode.
4. After charger is complete, unplug the charger from the power source.
To obtain the best performance and lengthen the life of the battery pack, it should be charged above +40°C (104°F). This is important to prevent serious damage to the battery pack. It is normal for the charger and the battery pack to become warm to the touch while charging. The battery pack should be recharged when it fails to produce sufficient power to operate the tool - (when it loses its "grunt"). DO NOT CONTINUE to use a battery with low voltage or capacity,. Immediately charger the battery.
Always keep the charger battery cavity clear. DO NOT PUT any metal objects into battery cavity as it may short circuit the charger.
Always unplug the charger from the power supply or turn off the power supply when there is no battery pack in the cavity. Unplug the charger before attempting to clean it.
To assist in the cooling of the battery pack after use, avoid placing the charger or battery pack in a warm environment such as in a metal shelf, or an un-insulated vehicle or trailer.