The battery life of these smart doorbell cameras can significantly vary based on the model and the frequency of use. The Ring Doorbell, a popular battery-powered model, boasts a rechargeable battery that typically lasts anywhere between 6-12 months before requiring a recharge. However, this can be shorter with heavy use or frequent activations. On the other hand, the August Doorbell also comes with a rechargeable battery but lasts for approximately 3-6 months, depending on the frequency of use. The Eufy Video Doorbell Dual, a wired model, does not rely on battery power, instead requiring a continuous power connection to your home's electrical system. When choosing the best doorbell camera, these battery life considerations are crucial in making a decision that best suits your home security needs.