This battery contact spring is designed specifically for AA and CR2 batteries, providing a secure and reliable connection to your PCB. Made from durable spring steel material, it maintains its shape and resilience even under repeated use, ensuring a consistent and stable connection. The PCB mount design simplifies installation and replacement, allowing for seamless integration into your electronic device. As an alternative to Keystone 5201, this battery contact spring offers similar performance and reliability, but at a potentially more cost-effective price point. Its excellent conductivity ensures efficient power transfer, making it an ideal choice for a wide range of applications, including portable electronics, remote controls, and more.