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battery is recognized by windows but suddenly won't work



 
 
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  #1  
Old July 23rd 05, 08:13 PM
No_Name
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Default battery is recognized by windows but suddenly won't work

The battery on my Windows XP A21m Thinkpad had been working normally
and was not near the end of its life, but now will not power the
computer when it is unplugged from AC power.

The battery meter shows up on my quick launch toolbar and is recognized
by windows, at 97% charged. If I remove the battery while the computer
is on and plugged in, windows recognizes this action and the battery
icon disappears.

So what could be the problem here?

The problem happened suddenly about a week ago and has not gone away.

Thank you.

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  #3  
Old July 24th 05, 01:26 AM
Richard Johnson
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wrote in message
oups.com...
The battery on my Windows XP A21m Thinkpad had been working normally
and was not near the end of its life, but now will not power the
computer when it is unplugged from AC power.

The battery meter shows up on my quick launch toolbar and is recognized
by windows, at 97% charged. If I remove the battery while the computer
is on and plugged in, windows recognizes this action and the battery
icon disappears.

So what could be the problem here?

The problem happened suddenly about a week ago and has not gone away.

Thank you.

It is likely the battery. The way the notebook circuit reads the level of
charge is by looking at the voltage and or the current draw the charger is
supplying. If the battery is not taking the current or simply reads high
under no load the meter is incapable of figuring out the battery is bad.
Putting the battery under load (running the notebook on battery) will yield
the true state of the battery. If it isn't working, then likely it is bad.
(The other possibility is that somewhere in the battery to load circuit
there lives a high resistance. For that you would need to take it to
someone with knowledge of how to troubleshoot the circuit.)


 




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