Battery Daddy 150 Battery Organizer & Battery Case with Smart Tester As Seen On TV Battery Daddy Smart is the ultimate battery storage system with its unique double-sided design that stores and organizes up to 150 batteries! With Battery Daddy Smart each battery is kept safe and secure in a customized slot. The clear Easy View cover allows you to see all your batteries at once. The secure heavy-duty latches make sure your batteries stay in place. The compact design and fold away handle allow Battery Daddy Smart to fit in a cabinet drawer or shelf. Best of all Battery Daddy Smart comes with a built-in battery tester so you can quickly test the life of the batteries you have. Great for home office boat RV workshop and more!