Thread: Unit DIED !!
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Old 12-16-2011, 09:48 AM   #13
frankz
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Posts: 23
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Join Date: Nov 2011
Device: Kindle Fire
Quote:
Originally Posted by jswinden View Post
One thing that we should keep in mind is that in general it is a good idea to never let a Lithium Ion or Lithium Polymer battery discharge below 50%. Doing so reportedly lessons the life of the battery.
I'd love to see where you've seen that reported for Lithium Ion batteries, as the recommended storage charge level (where the charge level has the least effect on the life of the battery) for Lithium Ion batteries is 40%.

At a 40% charge at 25 degrees C, your battery will naturally lose 4% of its capacity in a year. At 100% charge at the same temperature, it will lose five times that (20%).

http://batteryuniversity.com/learn/a...ased_batteries

Lithium Ion Polymer battery manufacturers recommend discharging the battery to 50% for storage purposes. That doesn't sound anything like "never letting it get discharge 50%." You're intentionally discharging it to that level with the understanding that it will slowly discharge in storage.

http://en.wikipedia.org/wiki/Lithium...olymer_battery
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