I bought my first Magic Mouse (which I truly love) ten years ago and it finally gave up the ghost. With the snowstorm coming, I rushed over to the Apple Store at The Greene and purchased a new one, which is now in its second version. The big difference is there are no replaceable AA batteries needed (yeah!), just charge it with the provided cable plugged into a USB port on one side and into the little lightning port shown at the bottom of the picture below. The only downside is when it's being charged you can't use it.