[ltp] poll: how is your battery? (9-cell-battery lost about 25% capacity in 10 months)

Neil Caunt linux-thinkpad@linux-thinkpad.org
Wed, 13 Jul 2005 11:09:42 +0100


Hi,

> What would you say, is a loss of 25%-30% in 10 months really acceptable
> for a quality battery? What are your own experiences?

I bought my X20 second hand and I know it to be at least 4 years old. 
I've no idea if the battery was the original supplied with the laptop, 
but it's showing as running at about half of its original capacity.

A full charge will keep it going for anything up to 2 hours until the 
battery reports itself as completely drained, but oddly it will give me 
an extra 40 mins or so before it actually goes. This occurs with both 
APM and ACPI.

Is there any way to recalibrate the battery? I've tried running it down 
completely a few times to no avail.

Cheers,
Neil