My old Kindle has given up - charge it up one day and the battery is virtually flat by the following morning. I could buy a new battery off the internet but that may not be the whole problem so I've decided to treat myself to a new one, a slimmer, lighter touchscreen version which I'll hate at first but eventually I'll get used to it.
The old Kindle lasted about five years which isn't bad considering how intensively I use it and how often I drop it. At the moment I'm enjoying a beautiful sunny morning in the garden while waiting for the Amazon man to deliver the new one. Only ordered it yesterday. Modern life eh? Amazing technology and amazing organisations all mixed together with amazing insanity.