Do you use an Apple mouse? It's not like you are frequently charging. Just plug it in while you go get a coffee or lunch and you are good for weeks. It displays

Do you use an Apple mouse? It's not like you are frequently charging. Just plug it in while you go get a coffee or lunch and you are good for weeks. It displays a low charge warning in the menubar to alert you. I found having to always keep a supply of batteries at hand was more inconvenient than just plugging in the mouse once in a while.