Huawei M228 User Manual - Page 39

 If battery deformation, color change or abnormal heating occurs during storage or charging, remove battery immediately and properly dispose. Otherwise, battery leakage, overheating, explosion, or fire may occur.  Do not force battery into place during installation.  Do not remove the battery while the phone is turned on. Charger  Use only manufacturer-approved chargers. Use of a non-approved charger may cause malfunction, and will also void warranty.  Do not short-circuit the charger. Short-circuiting the charger may cause fire or malfunction of the charger.  If the power cord is damaged (for example, if the wire is exposed or broken), or the plug becomes loose, stop using the cable at once. Otherwise, electric shock, short-circuit, or fire may occur.  Do not use the charger in a dusty or damp environment. Keep the power cord away from excessive heat or flame.  Use only the AC-power supply defined in the specifications of the charger. Improper power voltage or current can cause fire or malfunction of the charger.  During charging, do not touch the plug, power cord or the charger itself with wet skin. Otherwise, electric shock could occur.  If liquid leaks into the charger, remove the plug of the charger from the socket immediately. Otherwise, overheating, fire or other malfunction may occur.  The Travel Adaptor for this phone meets UL 1310 safety requirements. Please adhere to the safety instructions per UL guidelines. 32