Acer E100/E101 Smartphone User Guide143. Insert the tabs on theinside of the battery coverinto the slots in yoursmartphone. Carefullyslide the cover up until itclicks into place.CAUTION: Risk of Explosion if battery is replaced by an incorrecttype. Dispose of used batteries according to the instructions.Charging the batteryFor initial use, you need to charge your smartphone for eighthours. After that you can charge it each day to recharge thebattery to full capacity.Connect the AC adapter cord to the mini USB connector onyour smartphone.Removing the batteryOpen the battery compartment as shown in “Installing thebattery“ on page 13. Lift the battery out of the compartmentusing the clip on the top of the battery.Replace the battery cover as described above.Turning on for the first timeTo turn on your smartphone for the first time, press and holdthe power button until the system bootup screen appears.Follow the setup screens to set up your phone.12