My husband is a super channel surfer. He watches satellite tv so he is constantly flipping through the hundreds of channels watching several different shows at a time. I got tired of constantly buying and changing batteries along with always seeing the low battery warning message on the screen. This package came with 16 AAA batteries each in a plastic protective case. I use the battery charger I already have and it worked just fine. Now I am no longer searching for good batteries or throwing away money on disposable batteries.