Is your Nike+ Sport Kit battery kaput?  Don’t want to spend the $20 necessary on a new sensor?  Why not check out this handy, do-it-yourself article, “Replace battery in Nike+ receiver for under $5.”

The steps should take 10-15 minutes to complete and require tools that you probably already have around the house.  You’ll need to buy a new battery, of course, but the required CR2032 battery is easily found at many online retailers and at your local RadioShack.

Via Instructables.