GP 103020 (23AE) is a single-pack alkaline high-voltage battery for compatible small electronic devices. The manufacturer datasheet identifies the 23A model as GP23AE, matching the format named for this GP catalogue number.
Its nominal voltage is 12 V. The battery measures 10.0 mm in diameter and 28.0 mm long, a compact cylindrical format for devices designed for this battery type. The listed application includes remote controllers.
A metal jacket surrounds the cell. Its nickel-plated flat contacts have a protruding positive terminal and a recessed negative terminal.