New Ring Solar Charger for Ring Video Doorbell 3 and 3 Plus. This solar charger helps extend the battery life of your compatible Ring Video Doorbell by providing a continuous trickle charge from sunlight. It is specifically designed for the Ring Video Doorbell 3 and 3 Plus. Note that it is not compatible with earlier generations like the Ring Video Doorbell (1st generation), Ring Video Doorbell 2, or Ring Video Doorbell (2nd Generation). The solar charger is designed to help keep your doorbell's battery topped up, reducing the frequency of manual recharges. It mounts behind the Ring Video Doorbell 3 or 3 Plus. B14