MobileRead Forums - View Single Post - K1 over three years old, battery still working.

Mark Rehorst · 03-26-2011, 10:41 AM

Lithium ion batteries are good for several hundred charge/discharge cycles before capacity falls to 1/2 of designed capacity. These devices make minimal demand on the battery so a charge may last a month with nondaily use or a couple weeks with daily use, if you keep the radio turned off most of the time. That means the battery should be good for many hundreds of weeks, i.e. at least a few years, before charge capacity drops to 1/2.

I don't know about you but any device that I only have to charge once a week is still perfectly usable to me. I think the battery will have to fall to 1/4 capacity before I'll even start trying to figure out how to install a replacement, and I'll probably let it go until I need to charge it every other day. I anticipate a loooooong life for the battery in MY Kindle.

The battery will probably last so long that by the time I need a replacement, the latest generation of ebook readers will be so much more impressive I'll want to get a new one.

03-26-2011, 10:41 AM	#7
Mark Rehorst was engr, now dentist Posts: 143 Karma: 18558 Join Date: Nov 2010 Location: Riverside, Ca Device: Kindle DXG	Lithium ion batteries are good for several hundred charge/discharge cycles before capacity falls to 1/2 of designed capacity. These devices make minimal demand on the battery so a charge may last a month with nondaily use or a couple weeks with daily use, if you keep the radio turned off most of the time. That means the battery should be good for many hundreds of weeks, i.e. at least a few years, before charge capacity drops to 1/2. I don't know about you but any device that I only have to charge once a week is still perfectly usable to me. I think the battery will have to fall to 1/4 capacity before I'll even start trying to figure out how to install a replacement, and I'll probably let it go until I need to charge it every other day. I anticipate a loooooong life for the battery in MY Kindle. The battery will probably last so long that by the time I need a replacement, the latest generation of ebook readers will be so much more impressive I'll want to get a new one. Last edited by Mark Rehorst; 03-26-2011 at 10:43 AM.