Versapak batteries are designed by Black & Decker for use in its cordless tools like drills and screwdrivers. After a year or two of use, these batteries stop working because they have lost all of their juice. You can re-juice the batteries with a 12-volt car battery. This increases their longevity.
- Skill level:
Things you need
- 12-volt battery
Determine the voltage of the batteries. Connect the voltmeter's red cable to the red terminal on the battery and the voltmeter's black cable to the black terminal on the battery.
Turn the voltmeter to "DC mode." This is the kind of current used in Versapak batteries. Record the voltage measured.
Connect the 12-volt car battery's negative wire to the Versapak's outer shell. Tap the 12-volt car battery's positive wire to the Versapak battery for a few seconds.
Retest the Versapak battery with the voltmeter. If the voltage appears to be very low, repeat Step 3.
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