· 🔋 Full Compatibility: Ensure seamless integration with your Ring devices, including Doorbell 2/3/3 Plus/4, Stick Up Cams, Spotlight Cams, Peephole Cam, Solar Floodlight, and more. These 6040mAh 3.65V rechargeable batteries are specifically designed for a wide range of Ring security cameras.Upgraded Replacement Battery: This Bolidtec Battery is a high capacity 6040mAh· 🔋 Multiple Charging Options: The battery can be charged using any 5V USB port, such as a computer, car charger or mobile power supply.· 🔋Reliable Protection: The doorbell battery automatically adapts to a variety of environments, such as automatic power-off due to overheating. Built-in multiple circuit protection against overcharge, short circuit, overheating and overvoltage to ensure the safety of you and your equipment. The battery can be recharged at any time.· 🔋Excellent Quality: Pure copper battery contacts, not easy to oxidise and rust. The shell is flame retardant, high temperature resistant and wear resistant.· 🔋LED Indicator Light: The battery is equipped with a signal indicator that changes the state of charge by means of a red and green light. When both the red and green lights are on, the battery is charging. When only the green light is on, the battery is fully charged.