Regulatory notices173Safety precautions for power supplyunitUse the correct external power source: A product should beoperated only from the type of power source indicated onthe electrical ratings label. If you are not sure of the type ofpower source required, consult your authorised serviceprovider or local power company. For a product thatoperates from battery power or other sources, refer to theoperating instructions that are included with the product.Handle battery packs carefully: This product contains aLithium Polymer battery.There is a risk of fire and burns if the battery pack ishandled improperly. Do not attempt to open or service thebattery pack. Do not disassemble, crush, puncture, shortexternal contacts or circuits, dispose of in fire or water, orexpose a battery pack to temperatures of higher than60° C (140° F).Note: Danger of explosion if battery is incorrectly replaced.Replace only with specified batteries. Dispose of usedbatteries according to the local regulations or referenceguide supplied with your product.Care and maintenanceYour phone is a product of superior design andcraftsmanship and should be treated with care. Thesuggestions below will help you fulfill any warrantyobligations and allow you to enjoy this product for manyyears.