The Panasonic - 4G13 (4SR44) is a reliable and long-lasting button cell battery. Manufactured by Panasonic, this battery is ideal for use in a variety of small electronic devices such as watches, calculators, keyless entry systems, and more. With a high capacity of 105mAh and a voltage of 6V, the Panasonic - 4G13 (4SR44) ensures a consistent and stable power supply for your devices. This compact and lightweight battery is easy to install and is designed to provide reliable performance. Trust Panasonic for all your battery needs in the Panasonic category.