reply from the kindle CS........very quickly, too!
Thanks for writing to Amazon.com.
The replacement policy for Kindle DX battery is same as Kindle 2 in the amount of $59.00 to replace the battery.
If you have any power or charging problems during the life of your Kindle, you can contact Kindle Support for assistance.
Our goal is to help you get the most out of your Kindle experience. You can reach us by phone directly and toll free from many countries by clicking the Contact Us option in the right-hand column of our Kindle Support pages at: