[sirmaru]

My NowBible manual says that its Lithium battery has a life of 500 charge cycles. If that applies to our Kindles, then we have nothing to worry about. We will probably buy the latest and greatest EVERY year and just give the old unit away or throw it out.

I've had my Kindle Keyboard for 2.5 years now I only have 29 charge cyles on it. I gave away my KF1G after one year of use and it had 92 charge cycles. I've had my KFHD7-32 for 2.5 months and have 14 charge cycles on it. I've had my PW for 3 months and have 8 charge cycles on it. I've had my NowBible for 3 years and have 25 charge cycles on it.

Remember, the purpose of these devices is ENJOYMENT, not maximization of battery life.

I also heard on NPR that new types of betteries called 3D will be out later this year. We now use 2D batteries. The 3D batteries will last 5 times as long as the ones we are using now. The 2D batteries store current in various 2D layers. The 3D ones will not have layers but will have storage done accross and up and down in one solid unit. Plus the 3D batteries will be 1/10th of the size of the 2D batteries.

Thus, next year's Kindles will probably make this year's models totally obsolete.