Sure, having a storage box for your batteries is a great way to store your batteries, but it's the cheap plastic battery checker that really pays off. I'm absolutely sure that most of you are just like I was. A device that uses batteries stops working so you throw ALL of the batteries in the recycle bin. Since purchasing this kit and battery checker, I have found that rarely if ever are all of the batteries dead. In almost all cases, one battery is dead, while the other one's are still in very gSee full review