For your safety, please do not open battery by yourself, only professionals shall be allowed to open and maintain the battery ;

Due to battery be potential harmful to the environment and health, battery shall be replaced

by manufacturer’s service department . If there is need to replace and maintain, please contact after-sale service  department;

Used battery is recyclable, and improper disposal of battery may be great harmful to the environment and health. So used battery shall be proper disposed following relative regulations and law or shall be returned to our company for disposal ;

Please choose the batteries of the same model for replacement, and batteries produced by different manufacturers shall be strictly forbidden for connecting in one system.