AA Battery contact Spring PCB Mount Spring Steel Material with Nickel Plateing Finish. Crafted from high-quality spring steel, it boasts exceptional resilience and durability, ensuring reliable connectivity over extended periods. Its nickel-plated finish enhances corrosion resistance and conductivity, ensuring seamless power transfer. Ideal for various electronic devices, this battery contact offers a secure and efficient alternative to Keystone 5220, ensuring uninterrupted performance and a hassle-free user experience.