[X4U] Laptop battery life?

[Xavier Noria]

On Nov 18, 2007, at 8:22 PM, B. Kuestner wrote:

>> My battery in my MacBook Pro has been yielding shorter and shorter  
>> usage times
>
> That is normal: Every LiIon battery will age over time.
>
> But to reduce the effect, try to avoid:
> - overheating (such as in a car in the sun)
> - freezing (such as in a car in the winter)
> - constant charging (high charge states facilitate self-destructing  
> effects in LiIon batteries)
>
> In other words:
> - Load the battery when it's empty
> - Unplug the battery when it's full

I have no clue about batteries. How do you reconcile that  
recommendation with estimated battery life measured as cycles? The  
more you unplug, the faster you consume charging cycles.

The battery of this MacBook has a health of 63% with 438 cycles in 1.5  
years. It performs poorly and I thought that was due to abusing the  
battery. I mean, I could use it plugged sometimes at home and I  
didn't. I wondered wheter a battery that is rarely unplugged lasts  
fine for more time.

-- fxn