Kindle keyboard battery life?
I've had a wifi Kindle Keyboard for about 18 months now and am absolutely delighted with it. However, the battery seems to be losing its charge much more quickly now than it did originally. I used to get at least a a couple of weeks out of a charge (rarely if ever using wifi as I tend to use Calibre for uploading / downloading). Recently this has dropped to a few days.
Is the battery on its way out? Should I contact Amazon? Is there a 3rd party solution?
Suggestions gratefully received.