[ltp] T4x Battery Conditons Survey

[Peter B. West]

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Eric Van Buggenhaut wrote:
> On Fri, Dec 16, 2005 at 03:53:03PM +0800, Kelvin KAN wrote:
> 
>>Now nearly 1 yr, in 38 charging cycles, the battery capacity of my T42 
>>has dropped from 4700mAh (designed) to 4200mAh (fully charged).   
>>Projecting this degradation into next yr, it will be practically giving 
>>me only 2-hr running by next X'mas.
>>
>>To be honest, I've been using the battery with great care and have 
>>removed the battery while running on AC.  And 38 charge cycles in 1 yr 
>>does NOT seem too frequent.
>>
>>How's yours?  Really an IBM (not Lenovo) quality issue?
> 
> 
> Same problem here. When I bought my T42 they claimed the battery to 
> stand 5h. I never went beyond 3h (which is normal: 47000mAh/16000mW = 
> ~3).
> 
> After one year of intensive use (200 charges) always emptying the 
> battery before charging, I get a max. capacity of 42000mAh just like 
> you. I'm kind of disappointed by this aspect of the Thinkpads, 
> probably the only weak point of this laptop.

This sounds like great battery performance to me.  If this is typical of 
ThinkPad batteries, we have nothing to complain about.  Try a Dell sometime.

> Now, you should have a 1-year warranty, including the battery, just 
> like I have (mine ends tomorrow hehe). One month ago, I called IBM 
> customer service, I complained that the battery discharged really too 
> quickly and they sent me a new battery without problem. Bonus: you 
> keep the old battery if you want.
> 
> You might give it a try..
> 
> 

Peter
-- 
Peter B. West <http://cv.pbw.id.au/>
Folio <http://defoe.sourceforge.net/folio/>

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