9V PP3 Labeled Safety Cap

themaninthesuitcase's 9v cap cover is the perfect size/fit for 9v batteries to keep them from shorting out. I use my 9v batteries for wireless mics and find that often I want to know if a battery is brand new, used (but still good) or dead so I can keep my batteries organized and replace where needed (brand new before a speech or performance and used for announcements or when if it were to cut out it wouldn't be a big deal). I added some labels and colored the profiles with some suggested colors to help make them even more useful for similar situations.