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Why isn't my laptop battery working?
I own a Fujitsu AH532/G21 Lifebook, so over a 7 year old laptop, that I've always been taking good care of, despite rather heavy usage for important work. A couple of years back, I cloned the HDD to SSD and it's been running like a dream ever since (including today!). Software wise, I don't have a single problem. However, hardware wise... well, you already read the title.
The problem occurred around 3 weeks ago. I turned on my laptop on battery, when it was on my lap, and all of the sudden for no reason whatsoever, it turned back off. Well, I assumed that the battery life was already very short as it is, and maybe the batteries finally died, even though I had the batteries changed only 2 years ago. So, I though, no problem, I'll just change the batteries by carefully soldering a new set. Yesterday, I did exactly that, and worked perfectly. Checked the voltage on the new set and it is 11.6V (even though it says that the battery should be 10.8V). The other set was only 9.6V. These are Li-Ion batteries.
Anyway, I did a lot of things that were suggested online, but none worked. I first checked my adaptor, and nothing is wrong. I checked the internal connection (disassembled my computer) and also nothing is wrong there. All cables still fine that connect to the motherboard. I uninstalled and reinstalled the battery driver (AHCI Compliant Battery Control Method) and it didn't work either. I have even updated my BIOS just yesterday, and it still did nothing.
I tried removing the laptop, pressing the power button for 30 seconds, and putting the battery back in... still nothing. It just always tells me that my batteries are always fully charged, but just died when I remove the AC power. When I wrote the "powercfg /batteryreport" command, interestingly, it's like it didn't care that I changed the battery set! It showed me the exact same battery report! Around 44000 mWh Full capacity, but 16222 mWh capable capacity, which I found very strange.
I also tried using third-party software to generate a battery report for me, but they also gave the exact same report. Also strange, this is what I have in the report:
BATTERY: 1
NAME: BAT1
MANUFACTURER: PAC
SERIAL NUMBER: -
CHEMISTRY: -
DESIGN CAPACITY: 44,280 mWh
FULL CHARGE CAPACITY: 16,222 mWh
CYCLE COUNT: -
I got this even after replacing the batteries. So what could the problem be?? I'm honestly stumped! Oh, and I don't think my laptop has a battery reset pin as some sites suggested.
@clickvalley No offense, mate, but I wasn't done posting my question (only 1500 character limit <facepalm>), so I had to update. Can you please update your answer? I already did all these things you mentioned. It's in fact one of the first things I've tried.
By the way guys, I forgot to mention. The BIOS has no information whatsoever about the battery. It's not an error, it's actually how it is. There is no option that tell me anything about the battery. It's just the way it is built, so no configuration from the BIOS concerning the battery can be done.
1 Answer
- 6 months agoFavourite answer
If the battery doesn't seem to be getting fully charged, shut down the laptop entirely and see how it goes. Make sure that the AC adapter is working. The problem might also lie in the power adapter. This one is easy to test: Remove the battery completely from the laptop and try running the laptop using the AC adapter.