Zte A39 User Manual page 28

indicator, it means charge has been finished. If the battery is charged in power-off
condition, the stop of charge animation indicates the charge has been finished.
Generally the whole charge process needs 2~3 hours (Please charge the battery
for 6~8 hours for the first three times). During the charge process, your phone,
battery and charger may become hot, and this is a normal phenomenon.
Please disconnect the charger with the phone and the power outlet when charging
finished.
Warning:
Please put the phone at the ventilated place with temperature between ＋5℃~
＋40℃. Please use charger provided by the provider. Using unauthorized
charger may cause danger and violate the authorization and warranty rules of
the phone.
Please charge the battery in time when your phone automatically powers off or
displays a warning "Battery is low ".
The phone's talking time and standby time are based on ideal working
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