How to Revive a Drill Battery

One of the main reasons a drill battery dies before its time is because the user does not discharge it completely before putting it back on the charger. If your drill battery won't hold a charge, you can try to revive it.

Instructions

1. Discharge the drill battery completely. If it has any power left, use it until the drill completely dies. Drain the power only by using the drill, not by using a power resistor or shorting it out by placing it inside a microwave.

2. Remove the drill battery and place it in your household freezer. Leave it inside for at least 24 hours.

3. Take the battery out of the freezer and leave it at room temperature for another 24 hours.

4. Place the drill battery on the charger and see if it will reach a full charge. If it fails, the battery may be completely dead and will require replacement.

5. Extend your drill battery's life by discharging it completely before charging again.

Tips & Warnings

• If you need to use the drill right away, consider having a backup battery handy while you complete the revival process.

References

• BT3 Central
• Garden Web