Posted: Sat Dec 12, 2009 10:26 pm
Try Battery Pack Rebuilders, LLC (http://stores.ebay.com/Battery-Pack-Reb ... efid=store). They rebuilt the 36V battery for my Hilti TE-6A and upgraded it to NiMH cells from the old NiCads (this was a few years ago, before lithium Ions were popular). It was about $100, and the drill felt like it was on steroids after that.