Well that looks, um, disturbing.
So far the only battery I changed out on a kindle was on the K1 I bought in 2008. Of course it actually had a proper changeable battery. My K3/keyboard, the 2nd oldest kindle I have, still holds battery quite well. Of course I dont really use it much anymore. But I have a couple of months ago. Read a whole book on it and it barely moved the icon. I charge my kindle fleet once a month.
