All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
Replacement for the Following Battery Model/Part Numbers: TL284443.
Intended for/Compatible with the Following Thermostat Models: Nest Learning Thermostat (2nd Generation). Please Note: In most cases, the Nest thermostat can get enough power from the systems heating and cooling wires to charge its internal battery. But in a small number of situations you may need to first charge the unit via USB after initial battery installation or connect a common or C wire to deliver enough consistent power to your thermostat and keep the unit charged.