Hi friend, the included adaptor can work on both 110v / 240v, its input voltage range is 100-240v. The fountain works on 5v / 1a DC power only.
When the electricity is cut, if the fountain is connected to a UPS, it will still work for some time; otherwise, it will stop working.
There is no place for putting batteries inside the fountain.
Alternatively, you can connect a 5V/1A power bank between the fountain and the USB power to use it as backup power. But we can not guarantee all power banks in the market can work this way!
There is no place for putting batteries inside the fountain.
Alternatively, you can connect a 5V/1A power bank between the fountain and the USB power to use it as backup power. But we can not guarantee all power banks in the market can work this way!