If your here, it's likely you've seen Red's mention of using a pack I cobbled together for him for an old Makita Drill motor. Folks, since that mention I've been deluged with requests for replacement packs for all kinds of drills.... (which I have no knowledge of, catalogs or manuals for, replacement sensors, connectors, contacts & cases as well as all the other esoteric stuff required) 

In short, this type of work is not my forte'. In most cases where a replacement pack COULD be built by me, the cost of me doing so far outstrips the price normally charged by specialists in power tool pack replacements... so for all you folks out there seeking tool packs... try the link below... it's where I got the pack for my Dewalt... and yup; for less than I could buy the cells for!

http://www.batterybank.net/digital/powertools/index.html