[msisk6]

Yeah, I've been using these on multiple Macs for a decade now and it's just not an issue.

If I get the warning the mouse is getting low on charge I just plug it in, go grab a drink or use the bathroom, and by the time I get back it's good for the rest of the day.

Then all I have to do is remember to plug it in overnight and it'll be good for months. YMMV.