Something odd happened today. 24 hours ago, when I went to sleep, it showed 48%. In the morning, still 48% but I played with it a little, completely skimmed through (keeping pressed the side buttons) a book of 120 pages and it dropped to 47 and quickly to 46. This happened in the morning. Now, I opened it and it shows 40 percent. Six percent loss without using it. :|
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