Originally Posted by pauldovi
Lithium Ion batteries start to lose capacity the second they are created. They do not need to be drained or used and they will still lose the ability to hold charge over time. Things that accelerate their loss of capacitor is high temperature, a near full charge, and a near empty charge.
The best thing to increase the longevity of a lithium ion battery would be to charge it to 30-50% capacity and keep it in a cold place.
I do not disagree with what you say as it is all fact. But what is in bold. If I took those measures I might as well sell on Ebay as it is completely impractical in the real world for most users even impossible for others to achieve.
Yes fully charged longterm storage does lower the capacitance. The low charge storage as far as I know is a voltage drop below the safe level. That will not lessen the batts life, it will kill it.
On the last points. I have concern people will think charge to 80% discharge to 30% will prolong life? Well they test and the batt gets 600 charges. Full discharge/charge only gets 300 charges. Well those numbers are the same. I have seen the tests. They are flawed. 300X1(full ischarge/charge)=300, 600X.5(30%/80%)=300. The real measurable difference is a <5%.
Best way to make car tires last forever is to not use them. How come when I say that people think I am an idiot? But talk about batt's and common sense is out the window.Edited by Asus Mobile - 12/25/08 at 11:40pm