Question Laptop's battery acting weird

Jul 5, 2020
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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
 
Jul 5, 2020
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It might have been brand new in box but that particular model is at least a couple of years old. It could easily have been in stock for that long. Either way that battery is no longer viable.
But the battery wasn't being used in the box.
 

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