TCL 10L Manual page 26

Charging the battery
You are advised to fully charge the battery (
is indicated by a percentage displayed on screen while the phone
is powered off. The percentage increases as the phone is charged.
To reduce power consumption and energy waste when the
battery is fully charged, disconnect your charger from the plug;
switch off Wi-Fi, GPS, Bluetooth or background-running
applications when not in use; reduce the backlight time, etc.
1�2�2 Powering on your phone
Hold down the Power key until the phone powers on, unlock your
phone (Swipe, PIN, Password, Pattern, Fingerprint or Face) if
necessary and confirm. The Home screen is displayed.
If you do not know your PIN code or forget it, contact your network
operator. Be sure to keep your PIN code secure.
25
). Charging status