What is the voltage of the battery 1?

1.5 volts. 1 Volts of the battery can be seen on the logo of the shell. 1 There is a letter "R" on the shell of the battery, and the number after R represents the number of volts. 1 The battery voltage is 1.5 volts. 1 battery is widely used in various fields such as family, industry and medical treatment because of its large capacity and long life. In terms of medical devices, 1 batteries are also commonly used in electrocardiographs, sphygmomanometers, blood glucose meters and other equipment.