Batterys not reaching full charge

Unfortunatly lithuim batteries tend to be lazy. At room temp charge and use your batteries. For lithuim batteries it is best to charge before you use them. There is no memory with lithium and damaged can be done if you drain the batteries all the way. If the batteries become drained all the way there is a chance you will have a cell flip. What this means is the polarity will changeand you will lose that cell. example is you 14.4 is now a 11.4. Most chargers are a self testing and will tell you when the battery is bad. Lithium batteries have not been lasting anywere near as long as the nicads did

You can try this it might take a while but it should work , use the drill untill it actually stops, use it really hard , then recharge for the full time then use the drill again untill it stops [drain the battery ] even get the kids to hold the trigger untill it stops then recharge again eventually you will remove the memory block off the battery , works for me everytime smirf617