How can I reset a Acer Internal Battery? Step by step instruction is here

How can I reset a Acer Internal Battery? You can check the steps below,

If your computer will not power on or your Acer battery is behaving abnormally, try resetting the battery using the pinhole reset button. This process will temporarily disconnect and then reconnect the internal battery. 

Unplug AC power adapter.
Locate the battery reset pinhole on the bottom of the computer.
Insert a small paperclip in the battery reset pinhole. Hold the reset button for 4 seconds.
Let the computer sit for 5 minutes with no power.
Connect the AC adapter and power on the system

Brand new acer as16a8k battery 14.8V 2800mAh laptop batteries
Voltage: 14.8V
Capacity: 2800mAh (41.4Wh)
Battery cells: 4-cell
Chemical: Li-ion
Battery Color: black
Condition: new original battery
Warranty: 9 months