باتری سکه‌ای LR44/A76

LR44/AG13 battery
One of the standard sizes of button batteries is one and a half volts.
This battery is in the form of a small cylinder, with two negative and positive terminals located at the two ends of this cylinder.
The standard dimensions of this battery are 11.4 ± 0.2 mm in diameter and 5.2 ± 0.2 mm in height.

Usage
It is used in portable tools such as calculators, small flashlights, precision instruments, digital calipers, watches, toys, digital thermometers, cameras, toy lasers, etc.