I looked at this site's wiki for the PRS 300
and its says you can read 7,500 (BBeB Books) vs 6,800 (EPUB) on a single battery charge.
I'm currently converting allot of .lit and .htm ebooks through calibre and wondering if there any cons/plus to using each of these formats? Is it worth less battery life to use epub?
[Note: I don't have the 300 yet but I'm getting it this friday