battery will not charge

[Jeff]

I am using a 1 year old HP laptop running W7 home premium. As of
yesterday I noticed that when I am plugged in and hover my mouse of the
battery icon it says I am "plugged in-not charging".

I can find no setting where I may have inadvertently switched off
battery charging. Finally I discovered that if I remove the battery and
immediately put it back in I get "plugged in-charging". The battery
charges fully and runs over 2 hours which is about normal for it.

What concerns me is that I still get the "plugged in-not charging" when
I plug power in after the battery has run low and again this is resolved
by removing and re-inserting the battery.

Not usre if this is a battery problem or a problem with the charging
circuitry. I ran the command
powercfg -energy -output c:\energy-report.html
and got (among other things):

Battery:Battery Information
Battery ID Hewlett-PackardPrimary
Manufacturer Hewlett-Packard
Serial Number
Chemistry LION
Long Term 1
Design Capacity 47520
Last Full Charge 42163

Any advice?

Thanks, Jeff

 

[Tester]

This suggests that there is something wrong with the connection in your
laptop. There are no switches that one can switch on/off as far as
battery charging is concerned.

hth

 

[Gene E. Bloch]

I am using a 1 year old HP laptop running W7 home premium. As of yesterday I
noticed that when I am plugged in and hover my mouse of the battery icon it
says I am "plugged in-not charging".

I can find no setting where I may have inadvertently switched off battery
charging. Finally I discovered that if I remove the battery and immediately
put it back in I get "plugged in-charging". The battery charges fully and
runs over 2 hours which is about normal for it.

What concerns me is that I still get the "plugged in-not charging" when I
plug power in after the battery has run low and again this is resolved by
removing and re-inserting the battery.

Not usre if this is a battery problem or a problem with the charging
circuitry. I ran the command
powercfg -energy -output c:\energy-report.html
and got (among other things):

Battery:Battery Information
Battery ID Hewlett-PackardPrimary
Manufacturer Hewlett-Packard
Serial Number
Chemistry LION
Long Term 1
Design Capacity 47520
Last Full Charge 42163

Any advice?

Thanks, Jeff

My advice is to contact HP tech support, since it's a problem with
their hardware or software.

These days (21st century), laptop batteries have a chip inside used for
communication with the laptop. I wouldn't be surprised if the problem
lay there.

 

[Big Steel]

Any advice?

If you have a warranty, then send the laptop in to be checked out.

 

[Paul]

I am using a 1 year old HP laptop running W7 home premium. As of
yesterday I noticed that when I am plugged in and hover my mouse of the
battery icon it says I am "plugged in-not charging".

I can find no setting where I may have inadvertently switched off
battery charging. Finally I discovered that if I remove the battery and
immediately put it back in I get "plugged in-charging". The battery
charges fully and runs over 2 hours which is about normal for it.

What concerns me is that I still get the "plugged in-not charging" when
I plug power in after the battery has run low and again this is resolved
by removing and re-inserting the battery.

Not usre if this is a battery problem or a problem with the charging
circuitry. I ran the command
powercfg -energy -output c:\energy-report.html
and got (among other things):

Battery:Battery Information
Battery ID Hewlett-PackardPrimary
Manufacturer Hewlett-Packard
Serial Number
Chemistry LION
Long Term 1
Design Capacity 47520
Last Full Charge 42163

Any advice?

Thanks, Jeff

You may be able to find a calibration procedure on their web site.

"Calibrating the Notebook Battery"
"This document pertains to HP Notebook PCs with Windows 7 and Vista."

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c00817650

Paul

 

[Jeff]

You may be able to find a calibration procedure on their web site.

"Calibrating the Notebook Battery"
"This document pertains to HP Notebook PCs with Windows 7 and Vista."

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c00817650


Paul

Thank you everybody. I cleaned the battery contacts and it's now back to
working correctly. So I'll keep my fingers crossed and my eye on it
especially since it is out of warranty. Will also check out the above link.

 

[richard]

I am using a 1 year old HP laptop running W7 home premium. As of
yesterday I noticed that when I am plugged in and hover my mouse of the
battery icon it says I am "plugged in-not charging".

I can find no setting where I may have inadvertently switched off
battery charging. Finally I discovered that if I remove the battery and
immediately put it back in I get "plugged in-charging". The battery
charges fully and runs over 2 hours which is about normal for it.

What concerns me is that I still get the "plugged in-not charging" when
I plug power in after the battery has run low and again this is resolved
by removing and re-inserting the battery.

Not usre if this is a battery problem or a problem with the charging
circuitry. I ran the command
powercfg -energy -output c:\energy-report.html
and got (among other things):

Battery:Battery Information
Battery ID Hewlett-PackardPrimary
Manufacturer Hewlett-Packard
Serial Number
Chemistry LION
Long Term 1
Design Capacity 47520
Last Full Charge 42163

Any advice?

Thanks, Jeff

It is a flaw in windows which is easily corrected.
1) leave windows operating.
2) pull out the battery
3) unplug the power.
4) install the battery.
5) plug in the power.
6) restart windows.

you may have to do this a second time.

 

[Jeff]

It is a flaw in windows which is easily corrected.
1) leave windows operating.
2) pull out the battery
3) unplug the power.
4) install the battery.
5) plug in the power.
6) restart windows.

you may have to do this a second time.

Thanks.

I had read on the web that there was a problem with Windows 7 and power
management that affects battery charging - which is why I asked on this
forum.
See:
http://forums.cnet.com/7723-19681_102-345945.html

So far so good so I am keeping my fingers crossed hoping the problem
does not return. :=)

Will keep you message in case I need it.

 

[charlie]

Thanks.

I had read on the web that there was a problem with Windows 7 and power
management that affects battery charging - which is why I asked on this
forum.
See:
http://forums.cnet.com/7723-19681_102-345945.html

So far so good so I am keeping my fingers crossed hoping the problem
does not return. :=)

Will keep you message in case I need it.

With Li Batteries
If the battery voltage is too low, the battery minder may prevent
charging.Basically,one side of the battery is disconnected from the
usual output connection by the battery minder. The reset/recovery method
I last used was to connect a DVM to (across) the battery output lead
that was switched off and the battery minder leads that went to the
actual battery output lead. This was after recharging the battery to the
nominal voltage via the "real" battery output leads.