I just received the latest Paperwhite this weekend. I charged it Saturday night and it was 100% charged on Sunday morning. By Sunday night it was down to 9% charged. The light and WiFi were turned off and I didn’t read from it. Charged it again last night. A 100% charged again. Just got home and checked it and it’s down to 12%. Again, the light and WiFi were off and I hadn’t read from it. Is this a known problem with the new Paperwhite?
did you download a lot of books? If so the indexing could take a while and that uses up battery power. Supposedly, from what some customers here have said, there's one bible that takes over 13 hours to index.
you could try a reboot by holding the power on for a full 30 seconds