[gt350mike]

I think I know the answer to my question but I'm going to ask anyway......I have a Dewalt drill 12v that I bought 9 years ago and it has always performed flawlessly. Today I was installing sheetrock in my garage and the battery died after zipping in 6 or 7 screws. I had a recharged battery available and experienced about the same number of screws installed before the battery died. I know that batteries perform best when charged after being completely drained but I'm wondering if my Dewalt has gone above and beyond the call of duty?? What is the typical lifespan of a cordless drill?

It appears that I may need to replace this drill so if anyone has any recommendations, I'm all ears!