So from yesterday, we were discussing how to rotate your AAA batteries when you’re changing them out. While I love the idea of this item, it really doesn’t work as cool as it looks, if the battery slide is empty and one has to slide all the way down it tends to get sideways and you have to open/shake it around to get it where it needs to be. The cover doesn’t fit right either, just not tight enough. But despite the lack of a wow factor, it does the job we need it to in that if you put your dead batteries in the top, they will properly rotate assuming you take from the bottom to full the charger.