Re: laptop battery cycling
On Mon, 2012-05-28 at 00:01 -0400, Doug wrote:
> On 05/27/2012 09:57 PM, Scott Ferguson wrote:
> > On 28/05/12 11:37, Robert Holtzman wrote:
> >> For the record, I'm running a Lenovo T420i with a 6 cell battery.
> >>
> >> In the past I've been told that it's bad practice to run a laptop on
> >> AC with the battery installed because it would cause reduced battery
> >> capacity.
> > Your Li-ion battery will have a longer life if it's stored in a well
> > sealed plastic bag in the 'fridge with a 40% charge than on constant
> > maintenance (trickle) charge plugged into the laptop. Take it out of the
> > 'fridge and fully charge prior to using. Keep it in the 'fridge state
> > when running on mains.
> /snip/
>
> I've often wondered, after reading this advice time and time again:
> how do you determine that the battery has a 40% charge?
To overdo things can also shorten lifetime. Some plastic pin will break
and you can't mount the batteries with 100% more lifetime anymore.
Don't forget to heat the battery in an open fire, when it was in the
fridge.
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