No LED function - Check charger and charge with known good charger

What does No LED function (AI/AK Series) mean?

The LED lights on the battery or tool are not functioning. This could be an issue with the battery itself, the charger, or the tool's power system.

• Faulty battery
• Faulty customer's wall charger
• Poor connection between battery and charger
• Problem within the tool's power system

Click steps to track your progress.

1. 1

   Check the battery's LED readout by pressing the button.

2. 2

   If no LEDs light up, inspect the battery compartment contacts.

3. 3

   Connect the battery to the customer's wall charger; the LEDs should flash green if charging.

4. 4

   If charging doesn't occur, test the charger with a known good battery or use a known good charger with the customer's battery.