| Author |
Message |
john
| | Posted on Saturday, June 26, 2004 - 2:00 pm: | |
I've had my HP pavilion ze4315us laptop for a little over a year now, and i've had relatively few problems. This past week, i left it charging on my bed for about 6 hours because i had fallen asleep, and when i woke up it felt slightly warmer than usual. More than likely, the surface of the comforter prevented it from venting air and it slightly over heated.
Ever since, i have been unable to run my laptop from the battery, only when AC power is plugged in. I have a program called "battery optimizer" on my computer, and it operates by discharging the battery and recharging it. First there's a five minute test to tell you if your battery is in good working condition, and then an 8 hour process is used to actually optimize it. Both processes lasted only 2 minutes when i ran them.
Also, if i unplug the AC power, the computer shuts off in a matter of several minutes. The first time i noticed this problem, i was able to run my computer off of the battery for a good hour before it shut off. Typically when there's a low battery it goes into hibernate mode, so this is when i was first alerted to the problem. The next time I tried, after I had fully recharged the battery, the computer lasted only a half an hour, and since then it can only last about a minute.
When the battery is removed and the side is pressed, it shows it has a 100% charge. When the battery is pushed back in and there is no AC power, the computer does not even turn on. Once on, the computer registers that the battery is at 2%, and then suddenly jumps to 100%. If i then remove the AC power, regardless of the amount of charge time, the computer again shuts off. While i am fairly good at software issues, this hardware issue has proven quite difficult for me. I feel that the most likely cause of the problem is that leaving the laptop on my bed did indeed overheat a component of my computer. Assuming this is the cause, my main question is what component is it? I don’t want to spend 50 plus dollars on a new battery if the actual cause is an overheating of where the laptop makes contact with the battery. Any info on how I can test probable solutions will be very welcomed. Also, if anyone knows how to test a laptop battery for voltage would also be useful, there are four metal contacts and as such I am unsure how to use my ohm meter on it.
|
Moderator (Es)
Username: Es
Registered: 6-2003
| | Posted on Saturday, June 26, 2004 - 4:54 pm: | |
Your battery may have a bad/weak cell perhaps from the heat. |
john
| | Posted on Saturday, June 26, 2004 - 11:21 pm: | |
is there anyway to test the battery or the computer? before i purchase a new battery, i'd like to better narrow down the cause. |
Moderator (Es)
Username: Es
Registered: 6-2003
| | Posted on Sunday, June 27, 2004 - 5:03 am: | |
Battery's Plus, a chain of stores specialising in batteries for all things, may be able to load test it.
If the battery tests good than the charging circuit of your laptop is at fault. |
Dimitar Valkov
| | Posted on Tuesday, July 6, 2004 - 10:38 pm: | |
I have always a message on my screen that it is time to calibrate my battery.I calibrated it but... no result |
Hal Brown
| | Posted on Saturday, July 10, 2004 - 4:39 am: | |
I am trying to solve a similar problem with online chat and email to HP. One thing I learned was how to calibrate the battery more effectively: turn off computer, turn it on again and right as the HP logo screen comes on press the F6 key. Another is to see if turning off the computer and on the rear with a paper clip, hold in the reset button for 30 seconds, leave it off for 3 minutes and try again. (None of these things worked). I also downloaded a new BIOS at https://isupport4.hp.com/euserv/entry/ViewIncident?incidentId=3616202 and this didn't work. Now HP wants me to erase my hard drive and resintall everything from the CDs. No way! I'd just as soon keep the battery out and always run it on the AC adapter. There has to be a better way to determine why the laptop always runs on the battery and runs it down even when the AC adapter is plugged in. |
Hal Brown
| | Posted on Sunday, July 11, 2004 - 5:36 am: | |
The latest from HP restated the solution I found earlier on another message board... it worked for me:>> The operation of the battery is mostly controlled by the power
>> management settings in Windows XP. As the Service Pack provided many
>> enhancements for the operating system, this may also include the
>> settings for the power management. If these settings are altered by the
>> service pack, this issue may be caused by these changes. There is one
>> way to reset the settings for resetting the defaults is by reinstall
>> Power Management. To do this, perform the following steps:
>>
>> 1. Click Start, Control Panel, Performance and Maintenance, and then
>> System icon.
>> 2. This opens the System properties window.
>> 3. Select Hardware tab and click Device Manager.
>> 4. Click "+" beside System devices.
>> 5. Select ACPI Power Button.
>> 6. Right-click the device and select Uninstall.
>> 7. Restart the system.
>>
>> Windows will detect and install the power management on restarting.
|
Jim
| | Posted on Thursday, August 5, 2004 - 11:34 am: | |
Ok, if your problem truly is a sensor issue... Here's what I've found on my current laptop battery. I figured, that if I did some "battery therapy" that I'd get it to work.. The previous owner reported 20 minutes on the battery, I'm proud to say, it runs 2 hours now, with no problems.
Anyway, what you need to do is drain the battery completely...
On your laptop, that means turning the laptop on, and waiting till it dies, then putting a cd in the cdrom drive, and running the built in cd player, untill It cannot run any longer..
(THIS can take days, but the results will be worth it.)
Then, when it reports 0%, and the cd will not spin up, plug it in..
It should charge fine till 3% your first time, then jump to 100%.
I repeated this process about 6 times, now my battery goes to 9% before jumping, and even charges for around 20-30 minutes on 9% before jumping!!!
I'm getting roughly a 95% charge when I do this!!
I have ran my laptop for over 2 hours..
I have a Lithium Ion Battery, you Ni-Cad People may be screwed.. From what I can tell, this works fine on LiOn, but, nicad is another story. If you report success, please post!! Thanks, and I hope it helps. |
|
