Hmmm...actually I seem to remember reading something like what Jon writes in his post (SD card draws power). Don't know if it'll make a difference to me as I don't read many hours per day and am happy to recharge every 7-10 days. Maybe I'll see how this week goes with the SD card inserted? Thank you both for looking into this.
At least I don't have to have the SD in to prevent dust from entering the card-slot - the jetBook has a protective cover for the 2 ports. But, I bought the SD card 'specially for this use so I would like to use it. Maybe I'll put some music or an audio book on it - the card is practically empty with only the 50 books!
Probably playing audio drains the battery much faster?
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