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Common problems for Battery
We would like to share some of the most frequently asked questions about: Battery Reports, Hold a charge, Test and Calibrating Battery . Check out this link: Is your notebook plugged in and not charging?
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Hi,
A few posts back I provided HP part numbers for main batteries that are compatible with your notebook. I also provided my source information. (See below) I highlighted the HP part numbers this time.
Yes, you can post hyperlinks here as long as they don't go to a web page with mal intent or spam.
Always use the HP part number when choosing a replacement battery. That way you can be sure that you are purchasing a part that meets the HP part specification.
Main Battery
Ch 3, Page 25, Table 3-1
24) Battery
4 cell 70 Whr 4.55 Ahr LI SR04070XL-PL HP part number 917724-855
3 cell 52 Whr 4.55 Ahr LI SR03052XL-PL HP part number L08855-855
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HP Recommended
From your description it sounds like the battery has reached the end of its service life.
It needs to be replaced with a new one.
See the article at the hyperlink
Maintenance & Service guide
http://h10032.www1.hp.com/ctg/Manual/c06219881.pdf
Main Battery
Ch 3, Page 25, Table 3-1
24) Battery
4 cell 70 Whr 4.55 Ahr LI SR04070XL-PL 917724-855
3 cell 52 Whr 4.55 Ahr LI SR03052XL-PL L08855-855
Online vendor Sources
https://www.google.com/search?client=firefox-b-1-d&q=HP+917724-855
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The length of time while on battery that the report shows is awful.
I don't think I have ever owned or had a loaner from HP that didn't give me at least 3-4 hours on a charge.
You may want to check your power options settings to see what is there. I generally choose the balanced (HP recommended)option over Performance.
Do you leave it plugged in to the power adapter all of the time?
Doing that has a detrimental effect on a battery's storage capacity.
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Hello. Thanks for your response. I appreciate your patience.
You're right, in the beginning when I got the laptop, I used to leave it connected to power almost all the time (I use the laptop mostly as a desktop and usually I wouldn't disconnect the power). Most of the time I had it connected to a UPS but I'd turn off the UPS when the laptop was off.
When I got it I didn't really test the full capacity of the battery but I know it'd last at least one hour (I bought it second hand).
I got it for $710 so now I understand why it was so cheap...
Trust me, the power options won't make any difference. I have tested that in both windows and ubuntu (I have a dual boot).
Now, this morning for the first time I actually opened the laptop and removed the battery.
I'm not an expert but it seems to me it is slightly bloated (specially on the 2nd and 4th cells). Please see the photos attached.
Right now I'm running the laptop without battery (only A/C). It seems to be working fine. The first time I turned it on I almost panicked because it showed the message "CMOS is Invalid... please hit enter to reboot, etc". But then it restarted itself and when it was back everything seemed to work normally.
However there's something odd when I turn it on: when I press the power button, it takes some time -about a minute- (and a couple on/off for the red power led) before it actually starts booting. Is this normal?
Now, here are the pictures of the battery.
My BIG question, from all of this information, can you tell that the problem is the battery and not the system board? because I've read that the "charge module" (or whatever it is called) is another common problem. I just want to be sure before I invest in a new battery.
Thanks in advance.
HP Recommended
Hi,
"However there's something odd when I turn it on: when I press the power button, it takes some time -about a minute- (and a couple on/off for the red power led) before it actually starts booting. Is this normal?"
No. That is not normal at all.
From the images that I can see it appears that the battery is going to have issues. Yes. Bloated is a good word to describe those two cells.
The "charge" circuit is actually a chip integrated into the system board and not a replaceable module.
That is why I said system board. For someone like myself who has a hot air station, the required tools and the experience, trouble shooting down to the component is not a problem, but for most people it is a brick wall.
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The system board has two power source options when the battery is installed.
That is part of the logic setup for the power charging circuit that senses when the battery is below a certain level and then begins charging.
yours isn't doing that so there is a fault, perhaps a shorted component in the power/charging circuit that is causing the issue.
Since there isn't a CMOS (RTC) battery installed by design, you will get BIOS messages as there is no current being supplied to the eeprom chip which comprises the BIOS.
The eeprom chip needs that current during times that the notebook is turned off so it can retain the BIOS settings settings.
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HP Recommended
Hi,
A few posts back I provided HP part numbers for main batteries that are compatible with your notebook. I also provided my source information. (See below) I highlighted the HP part numbers this time.
Yes, you can post hyperlinks here as long as they don't go to a web page with mal intent or spam.
Always use the HP part number when choosing a replacement battery. That way you can be sure that you are purchasing a part that meets the HP part specification.
Main Battery
Ch 3, Page 25, Table 3-1
24) Battery
4 cell 70 Whr 4.55 Ahr LI SR04070XL-PL HP part number 917724-855
3 cell 52 Whr 4.55 Ahr LI SR03052XL-PL HP part number L08855-855
I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"
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