What electrical appliance uses a 1.5 Volt battery?
You will find that information in these sites:
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=electrical+appliance+uses+a+1.5+Volt+battery&btnG=Google+Search&aq=f&oq=
To determine what electrical appliance uses a 1.5 Volt battery, we can start by thinking about common devices that run on batteries. A few examples that often use a 1.5 Volt battery include flashlights, remote controls, and small portable electronic devices.
To get a more specific answer, we can also search online or refer to the user manual of a particular device we have in mind. If you have a device that requires a 1.5 Volt battery, you can check the battery compartment or the label on the device itself to see if it specifies the required battery type.