All batteries wear out in time and lead to poor battery life. This guide will show you how to replace your battery on the Acer Aspire E5-573G
Unscrew the single (5mm) Philips head screw holding the drive in place.
Pull out the optical drive.
Unscrew all 17 (5mm) Philips head screws from the bottom.
Unscrew the 3 (2.5mm) Philips head screws underneath the optical drive.
Run a pick around the edge of the laptop (between the two parts) to open it.
Lift the left side of the case up and unplug the speaker cable before fully taking the bottom off.
Unplug the battery and remove it.