I have had my Kobo for only a few weeks. Currently I am reading one of the Oz books by L Frank Baum (can't recall the title). I have been reading it since Sunday and daily on my lunch hour this week when time permitted.
Well today I went on my regular Saturday visit to Barnes and Noble for tea and reading (on my Nook) .... and when I whipped out my Kobo to finish the Oz book, that was 90 percent completed, I got the message that I needed to charge my Kobo!
Stunned and frustrated I pulled out my Nook and it too said it needed to be charged.
So here I am back at home, trip cut short, unable to read what I want until both my readers charge up.
Both reader battery icons had indicated they were half charged just on Wednesday. What happened?
Are my e-readers both lemons?

Both are kept in Airplane mode to reduce battery drain so that should not be an issue.