PMU questions

[John Steele Scott]

> I can't find a logic in this stuff... Do you think there's a special
> reason why Apple uses such a complicated method instead of
> a) charging until voltage stays equals for a few minutes
> b) draining until voltage goes under 13.5 volts (or 13, or whatever)
>
> In my uninformed opinion that would work better, wouldn't it?

My opinion is only slightly more informed than yours, but I do know that the 
characteristics of modern rechargable batteries (lithium-ion or similar) are 
quite complicated . . . for instance even the method of charging them 
requires special controlling circuitry.

cheers,

John
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