The Keystone Electronics 9V Battery Holder is a reliable and durable battery holder designed for 9V batteries. It features a solder lug termination style for easy and secure connection. The battery holder is suitable for chassis mounting and can withstand a temperature range of -40°C to 130°C. It is designed to hold a single 9V battery and is widely used in various electronic applications. The Keystone Electronics 9V Battery Holder is an active product that offers reliable power supply and easy installation.