Gigabyte U2442N battery calibration

Hello all,

Hopefully I'm posting in the correct place. I was going to post in the original U2442N review thread but I didn't want to resurrect an old thread.

I've had my U2442N for a little over 2 years now and today, I noticed that my laptop battery died when it was at ~70% when unplugged. I've also noticed for the last few weeks now that my battery hasn't been charging over ~90%. I looked online on how to re-calibrate a laptop battery (run the laptop until it's empty and press the power button until it won't turn on; then plug and boot), but it hasn't worked. When I booted up my laptop again it was again at ~70%.

Any tips on how to fix this problem? I don't require a new and longer battery as I rarely have my laptop unplugged for more than 2 hours but I would like to be able to accurately determine my battery level so I get warnings and know when to save.

Thanks in advance!

My Specs:
Windows 8.1 Pro 64-Bit
Intel Core i5-3210M 2.5GHz
8 GB RAM
Intel HD Graphics 4000 + NVIDIA GT 640M

EDIT: It actually varies between ~40% and ~70% battery levels before the laptop suddenly shuts down.

 

I also have this same problem, I've only noticed it recently (laptop is about 2 years old), but then I rarely have it unplugged since it is a house laptop.

With my laptop it's always about 38% battery that the laptop suddenly cuts out with no warning and will not switch back on, as though the battery is completely discharged. This leaves, as Lezul mentioned, no more than 2 hours of moderate use on battery. It's really annoying. I suspect it could be to do with always having the laptop plugged in. I know it degrades your battery if you don't use it and constantly have a trickle feed of power topping it up (as the battery discharges naturally on its own).

Can this be fixed?

Please answer wise Notebook review fellows.

 

Back again. My battery has deteriorated even further now. It last for less time and abruptly shuts off sooner. I also get an occasional message in the Windows taskbar that my I should "consider replacing my battery". It is degraded and the sooner I replace it the better. Any tips on how to do this? Can I source a battery myself, pry open the case and do some DIY? Or does this have to be sent in to the menders.

Thanks