kanxrus Posted October 28, 2010 Report Share Posted October 28, 2010 What does the Tune-Up feature on the charger do? The TUNE-UP® feature on Dewalt chargers work to optimize the performance and life of your battery. For optimum performance, leave the battery pack in the charger for 6 hours or more once every 10-20 recharges. This balances the cells , keeps the pack at peak performance and extends the usable life of the pack. Link to comment Share on other sites More sharing options...
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