[ltp] discharge prediction on new battery chronically wrong. Whose to blame?

[Christos Papadopoulos]

How long did it last before it signaled complete discharge?  Did it get
anywhere near the OEM battery when new?

My battery sample is small, but I bought both OEM and third party
batteries several times for my X30 and X40. In no case the did the
third party last as long as the OEM battery (I was buying cheap ones).
However, with third party often being three to four times cheaper than
OEM, they might make economic sense (if you can live with the hustle).

Your problem sounds like the battery. This was a common failure mode
for many of the third party batteries I bought. See if you can return
it. My third party batteries lasted about a year at best, after that
the battery would die in 30mins or so.

Christos.


On Sun, Dec 06, 2009 at 08:06:39PM -0500, Mark Stosberg wrote:
> 
> I recently purchased a replacement battery for my X41 tablet
> 
> ( I bought it here: http://www.cutratebatteries.com/IBM-ThinkPad-X41-Tablet-Batteries/IB43M9 
>   The battery identifies itself as being made by "SANYO" )
> 
> I am using the battery with Ubuntu Karmic Koala, and since I bought it
> (about 2 weeks), the system has never correctly estimated the discharge
> time. The result has been that 4 times that the power has just suddenly
> cut out while I was running on battery (of course anything I was working
> on at the time was lost). 
> 
> I'm considering returning the battery, but is this definitely the
> battery's fault, or is the OS responsible for failing to correctly
> detect the remaining battery capacity?
> 
> Thanks!
> 
>     Mark
> 
> -- 
> http://mark.stosberg.com/
> 
> 
> 
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