The AC/DC Adapter charges the lithium polymer battery and can power the system of Zero Breeze air conditioner even if you operate it without a battery.It works on any standard voltage worldwide (100V - 240V AC input). RoHS, CE, and FCC compliant.Model: BX - 12012500Input: 100-240V 50/60HzOutput: 12V 12.5ADelivery note: Express (air transport, estimated 8-10 days)