K4 battery life
I bought a K4 (NT) last fall, and both my wife and me have been using it quite heavily. On average, it's getting used probably between one and two hours a day. Lately, I realize that battery life seems to be decreasing quite fast (wifi mostly switched off). Currently a fully charged battery hardly lasts us a week when we read a bit more than average -- when the device was new it often had one third or more left after two full weeks.
I was wondering if anyone has similar experience and has been on contact with Amazon?
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