Huawei Technologies Co. Ltd U7519 Benutzerhandbuch

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Introduction
The battery can be recharged but eventually wears out. If the battery 
lasts for a shorter time period than usual after being charged normally, 
replace it with a battery of the same type.
The charging time depends on the environmental temperature and the 
age of the battery.
When the battery is very low, the phone plays an alert sound and 
displays a prompt.
 When the battery is too low, the phone will power 
off automatically.
Before charging the battery, ensure that the battery has been properly 
inserted into your phone.
1.
Connect the USB interface of the USB cable to the travel charger.
2.
Plug in the travel charger to a power socket.
3.
Connect the mini USB interface of the USB cable to the charger 
connector of your phone. When the battery is being charged, the 
charging indicator blinks continuously. 
4.
When the charging indicator stops blinking, it indicates that the battery 
is full.Disconnect the charger connector from the power socket.