[Gllug] laptop battery problem

[salsaman]

salsaman wrote:

> Hi all,
> I have a laptop which seems to be overheating, so I have decided to 
> send it back for repair. On further investigation, it turns out that 
> the overheating is most likely related to the battery. If I leave the 
> laptop switched off but plugged in overnight, then in the morning it 
> is very hot. If I leave it not charging, then it has cooled down. 
> Also, if I leave it plugged in whilst using it, then it gets very hot. 
> However if I keep unplugging it so that the battery is always slightly 
> undercharged, the heating problems don't occur.
>
> The other thing I notice is that, even after leaving it plugged in for 
> a night, the battery display never shows 100%, it is always something 
> like 70%.
>
> My theory is that the battery is getting fully charged, but the 
> machine is not recognising this, and is trying to keep charging it, 
> which leads to the excess power being dissipated as heat. The PSU is 
> rather large on this machine, and it also gets very hot - which 
> somewhat confirms my theory. This is a recent problem, the laptop is 
> almost 3 years old (so the warranty expires soon), and the problems 
> have been happening over the last 6 months or so.
>
> Before I send it back though, I was wondering if it could be the fault 
> of the operating system. Is it possible that Linux is misreporting the 
> battery charge ? How could I possibly check for this ?
>
> Any suggestions/advice appreciated.
>
> Gabriel.
>


Sorry, my mistake - I just checked, and the battery does indeed show 
100% when it is fully charged.

Gabriel.

-- 
Gllug mailing list  -  Gllug at gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug