I have been following this thread and thinking my 600 is doing fine on it's battery life. Then, it went from 4 bars to no bars overnight. I do a lot of reading, and usually charge it about once a week and get around 3000 t0 4000 page turns. I did a full charge and have read around 300 pages since. It has been a very cold night and I wonder if the battery is temperature sensitive. Charging it up now and I will see how the life is from here.
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