MB not running on battery

Hello,
My MB does not start up nor run on battery, although it does when plugged in. I reset the PRAM and SMC, to no avail.
Thanks for any thoughts on this.
Here is my battery information (from the system profiler)
Manufacturer: DP
Device name: ASMB016
Pack Lot Code: 0002
PCB Lot Code: 0000
Firmware Version: 102a
Hardware Revision: 0500
Cell Revision: 0102
Charge Information:
Charge remaining (mAh): 4037
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4037
Health Information:
Cycle count: 441
Condition: Good
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 12557

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IBook does not run on battery

My Ibook does not run on battery when it reaches 48%. It just shutsdown with no warnings. I have to connect the AC adapter to work if i disconnect it the ibook just shuts down. I have to waut until it reaches 100% and then i take the AC adapter. I book shuts down and after i turn it on with out the AC and it stays running on bat until the 48%. Then i have to go through everything again.

Jobbaman wrote:
Till now my battery has been working perfectly. The machine is about 1 year old and I use it heavily for my work. I prefer to unplug my battery when it's full, and use it till it go's to sleep before plugging it in again. This results in a very high Cycle count (453) but a still perfectly working battery (98% according to CoconutBattery), I can use the machine for about 4 hours on a full battery.
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whoswho wrote:
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Hi @Squinancy
Welcome to the HP Support Forums!
From your description it sounds like you were try to do a hard reset of your notebook to start with, but it is possible it was not done properly. Read through this, and try it again.
HP Notebook PCs - Use Hard Reset to Resolve Hardware and Software Issues
If after that the computer is still not booting up on battery, check through this one next.
Battery does not power the notebook or hold a charge
Let me know how it works for you, and if you have more trouble please post any other details you can.
Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

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Hello,
The situation you describe looks like the unit has problems with the battery, but you say the battery is new and is fully charged.
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AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 20
Automatic Restart On Power Loss: No
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Wake On Clamshell Open: Yes
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Display Sleep Timer (Minutes): 2
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AC Charger Information:
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Battery Information:
Charge Information:
Charge remaining (mAh): 0
Fully charged: No
Charging: No
Full charge capacity (mAh): 0
Health Information:
Cycle count: 0
Battery Installed: No
Amperage (mA): 0
Voltage (mV): 0
HERE IS AFTER
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 20
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Wake On AC Change: No
Wake On Clamshell Open: Yes
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Display Sleep Uses Dim: Yes
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Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 2
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: Yes
Battery Information:
Charge Information:
Charge remaining (mAh): 0
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 0
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Cycle count: 0
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Battery Installed: Yes
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Hi there @ehuang99
Welcome to the HP Support Forums! It is a great place to find the help you need, both from other users, HP experts and other support personnel.
I understand that you are having trouble with power when running on your battery. I am happy to assist you with this. Since the unit runs well with the AC power connected, you have to check and be sure the battery is charging correctly, or if there is perhaps a bad or intermittent contact for the battery. Check through these pages and see if anything is applicable. Also make note of any error messages, LED flash patterns, that sort of thing. Let me know what you see.
AC Adapter Battery Charging Indicator LED Does Not Display Immediately When Plugged In
Battery Charging Is Not Indicated in Vista or Charging LED Does Not Turn On
Improving Battery Performance (Windows 8, 7, Vista)
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Computer Does not Start (Windows 7, Vista, XP)
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Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

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It's OK, I'm not a spring chicken myself...
With that said, it sounds like some of the power circuitry on the T60's motherboard has been damaged. There's really no easy way of fixing this type of issue. Motherboard swap would likely be the least complicated route to take if you can't return the machine.
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In daily use: R60F, R500F, T61, T410
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Hi Folks
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I have an iBook G3 900 mhz model that I just replace the logic board in (video issue).
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1. Reseat battery to verify battery is seated correctly with battery lock engaged.
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Warning: Make sure you do not hold down the "fn" key when resetting the
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Warning: Resetting the power manager will permanently remove a RAM disk, if
present, and all of its contents. You will also need to reset the date and time
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