GP/23A
High Voltage Alkaline Battery is a small, cylindrical, 12 volt battery rated at a nominal capacity of 55mAh. Measuring just 10.22mm in diameter and 28.5mm in height, this small and light but powerful battery is used in many small electronic devices, especially in remote control devices such as car alarm remotes, toys and garage door openers, where the battery's relatively high voltage ensures better radio frequency transmission between the controller and its receiving device.