Why my acer aspire V5 431 shows 81 available (plugged in, not charging). And when I unplugged the adapter my laptop shut down

[umieazahrah]

This happen after i did not use my battery for 2 weeks. What should i do ? I have uninstalled the battery manager but still not working. When i plugged in the adapter the battery light wont lighting as usual but it shows that 81 percent available (plugged in , not charging)

 

[hang-the-9]

Sounds like a bad battery. Did you try leaving it charging overnight? There may be a battery reset option in the power manager software, try running that.