Battery Daddy™ is the ultimate battery storage system with its unique double-sided design that stores and organizes up to 180 batteries! With Battery Daddy™ each battery is kept safe and secure in a customized slot. The clear locking lid allows you to see which batteries you have with ease. It fits in any cabinet, drawer or shelf. Best of all, Battery Daddy™ comes with a battery tester so you can quickly test the life of the batteries you have.