A reminder about this type of charger for this power driver; don't leave the spare battery roasting in the charger. Design of this charger happen to have excessive trickle charge to keep battery topped up is crude. I ended up with GOOD 7 years old battery like new and one equally 7 year old spare battery roasted giving noticeably poor capacity. The habit was like this:, Best battery was one I charging up while I use roasted battery pack in the power driver then foolishly swapped battery packs again right away leaving the roasted battery stew in the charging cradle while I use good battery for couple or three days. Once finished charged up, just take battery pack out of charging cradle. You'll end up with two good battery packs for years. Cheers, Jason

Hey, that power driver had one too and gave excellent service 7 years straight driving millions of screws for tv repairs I used to do, now cellphone repair as new trade, nothing wrong with that events except few suggestions: Might be worn out or jammed bearing ball keeping the bits latched on poorly and ejects bit too easily. Or the collar spring too weak. There is a snapped on wire clip keeping release collar on. Take this off then carefully take collar off watch out for the ball bearing. Then clean out crud out of hole where ball bearing goes. There are only one spring for collar and one small ball bearing. Spring is inside the socket for helping ejecting bits only. Dewalt has repair and tools stores everywhere. Cheers, Jason