Extend the battery life of your Ring Video Doorbell 3, Video Doorbell 3 Plus, Video Doorbell 4, Battery Doorbell Plus or Battery Doorbell Pro with the help of a solar power source. The latest Solar Charger for Battery Doorbells keeps your doorbell charged up to 35% longer than previous generations and includes a secure mounting bracket for easy installation with weather-resistant built-in solar panels. With 3-4 hours of direct sunlight every day, your Battery Doorbell can stay charged even longer than before. Battery life varies based on device settings, motion notifications and sun exposure. This product only works with select Ring doorbells with a fork-style power connector, including: Ring Video Doorbell 3, Video Doorbell 3 Plus, Video Doorbell 4, Battery Doorbell Plus, Battery Doorbell Pro. It is not compatible with Video Doorbell 2, or other Ring doorbells with a micro-USB connector. This item includes: FREE Expedited Shipping on Orders over $49 *Ring Doorbells sold separately.