I guess that goes to show that I rarely use the included charger.
I usually just let it charge a bit when I'm on the computer and that usually gets me by until the next time I need to top up. I'm a bit of a perfectionist and I often spend a good amount of time going back to the PC to fix any OCR typos and formatting errors I find as I read. Pretty much the only use I have for the bookmarks is to get me back to typos quickly.
The fact that the Libre uses a standard mini-USB connection makes life so much easier. No looking around for that one and only cord to make it work!!