Re: Low-Level and Long-Term Battery Control

[Andy Lutomirski]

Mohamed Ikbel Boulabiar wrote:
> Hi,
>
> Is there any function in the Linux kernel that control the
> charging/discharging of the battery to provide better lifespan ?
> (add some years to its life ?)
>
> For Laptops, it is better to extract the battery from the Laptop when
> the computer will be on power for a long period.
> I ask if the kernel can do such control without the user intention and
> in an automatic way.
>
> Some BIOS provide to the user to select whether to block the battery
> charging to 50% to make it stand for more time.
> And Many people (like me) forget their laptops on power until the
> battery no more can hold energy after 2minutes of no power.

On ThinkPads, tp_smapi (not in the kernel.org kernel) can do it.  I'd 
like to see this feature standardized in sysfs.

--Andy
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