Recipe for Li-Ion battery longevity

[Ed Greshko]

Aaron Konstam wrote:
> On Tue, 2007-03-20 at 10:17 +0800, Ed Greshko wrote:
>> Sam Varshavchik wrote:
>>> Having received a spanking new FC6-running (hence on-topic) laptop, what 
>>> is the current consensus on keeping a modern Li-Ion battery from 
>>> fizzling out?  A Google search does not seem to reveal much of a 
>>> consensus.  Some say: keep the battery charged whenever possible.  
>>> Others say, keep the battery charged 50-70%.
>> Come on, that's like saying the power switch on my desktop system running 
>> FC6 broke, hence on topic.
>>
>> Your owners manual should have all the information you need.
>>
>> Besides, what do you think you will get from the folks here other than more 
>> opinions?
>>
> Your laptop came with a manual. You are lucky. My Dell Latitude D810 was
> manualess and one had to guess what all the function keys and ports did.

http://search.dell.com/results.aspx?c=us&l=en&s=gen&cat=sup&cs=&k=Latitude+D810&qmp=12&p=1&subcat=ddc&sort=K&snpsd=A&nf=&dt=&navla=&fm=&ss=&ira=False&cp1=-1&cp2=-1&si=&spf=&ssysid=&ssysn=&stag=&~srd=f

Lists a total of 61 manuals for this system.  The Dell I had years ago came 
with a CD with all the manuals you'd ever need.  Maybe your system fell of a 
truck?

> The issue I think is this. Some types of batteries have memory in the
> sense if you change them when they are half charged they will henceforth
> only discharge halfway. Batteries generally put in laptops and cell
> phones (LI-Ion) this fault as far as I know and therefore they can be
> discharged and charged at will. Also it is my belief that the circuitry
> in these devices will not allow over charging.

Yes, the issue is "I think".