The Streamlight Nimh Green Stinger Battery Stick is completely rechargeable up to 1000 times so you never have to worry about it going bad. This battery stick was specifically designed for use with Streamlight Stinger flashlights so if you have a Streamlight Stinger you should also have one of these replacement battery sticks.
The Streamlight Stinger series of penlights are so small and compact that you can carry them with you anywhere you go and clip them to your belt or shirt for security. The Streamlight Stinger series of penlights are incredibly flexible largely due to the fact that they are completely rechargeable.
