Acer Aspire S5 User Manual page 63

Important: Before removing the battery from the unit, connect
the AC adapter if you want to continue using your computer.
Otherwise, turn off the computer first.
To install a battery pack:
1. Align the battery with the open battery bay; make sure that the end with
the contacts will enter first, and that the top surface of the battery is
facing up.
2. Slide the battery into the battery bay and gently push until the battery
locks in place.
To remove a battery pack:
1. Slide the battery release latch to release the battery.
2. Pull the battery from the battery bay.
Battery pack - 63