Utilizing high-quality lithium-ion cells with a massive 6040mAh capacity. Capacity: 6040mAh / 22.05Wh. 🔔Doorbell 2/3/4 & Pro: Perfect for Video Doorbell 2, 3, 3 Plus, 4, Battery Plus, and Pro. 📹Stick Up & Spotlight Cams: Works with all generations of Stick Up and Spotlight (Plus/Pro) cams.