Charger Safety; Battery Safety - Huawei G5521 User Manual

Choose only batteries, chargers, and accessories approved for use

with this model by the device manufacturer. The use of any other
types of batteries, chargers, or accessories may void the warranty,
may violate local regulations and laws, and may be dangerous.
Please contact your retailer for information about the availability
of approved batteries, chargers, and accessories in your area.

Charger safety

Unplug the charger from electrical outlets and the device when

not in use.
Do not drop or cause an impact to the charger.

Do not touch the power cord with wet hands or pull the power

cord to disconnect the charger.
If the power cable is damaged (for example, the cord is exposed

or broken), or the plug loosens, stop using it at once. Continued
use may lead to electric shocks, short circuits, or fire.
If your device has been exposed to water, other liquids, or

excessive moisture, take it to an authorized service center for
inspection.
Connect the device only to products with the USB-IF logo or with

USB-IF compliance program completion.
For pluggable devices, the socket-outlet shall be installed near the

devices and shall be easily accessible.

Battery safety

Do not connect battery poles with conductors, such as keys,

jewelry, or other metal materials. Doing so may short-circuit the
battery and cause injuries or burns.
Do not solder battery poles or dismantle the battery. Doing so

may lead to electrolyte leakage, excessive heat, fire, or explosion.
Do not attempt to modify or remanufacture the battery, insert

foreign objects into it, or immerse or expose it to water or other
liquids. Doing so may lead to fire, explosion, or other hazards.
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