30.9 hours of reading for me so far - I've charged it a couple of times, have wifi on permanently, haven't checked whether bluetooth is on or off ever, syncing regularly to send puzzles and other documents to it. Read books with text, such as Patricia Highsmith, and comic books such as Asterix, and looked at many picture books. When reading text, I ofter have the light down at 20-30%, when looking at color content, can be up at 80 - 100%. Been doing plenty of reading, highlighting, writing with the stylus!
No worries at all regarding battery life for me.
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