Did you turn on your computer when you charge your sony reader?
Did you turn on your computer while you charge your sony reader?
Cuz not like other devices, you gotta turn on your computer while you chrage your sony reader, otherwise it discharges your sony reader even thought the screen says 'charging...' . After overnight, the battery goes out.
Most of devices are charged even if you turn off your computer unless you plug out the power, but sony reader is not.
This could be a reason since you exchanged three times, and it worked until 2~3 days usage.
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