I've owned a laptop for 9 months. It was new when I bought it from a shop. Lately, the battery goes down while the laptop is on and plugged in. I also noticed that the laptop shuts down when the battery reading reaches 70%. In any case, the next time I turn on the laptop, even though it's unplugged when it's off, the battery is magically back to 100%-98% and from there it starts going down again as before.
My laptop's properties in case it helps...
Manufacturer: Turbox
Model: Flynote III
Processor: Intel(R) Celeron(R) CPU N3350 @ 1.10 GHz 1.10 GHz
Installed Memory (RAM): 4.00 GB (3.85 GB useable)
System Type: 64 bit operating system, x64 based processor
My laptop's properties in case it helps...
Manufacturer: Turbox
Model: Flynote III
Processor: Intel(R) Celeron(R) CPU N3350 @ 1.10 GHz 1.10 GHz
Installed Memory (RAM): 4.00 GB (3.85 GB useable)
System Type: 64 bit operating system, x64 based processor