In most common scenarios, a fully charged 4G Starlight Camera can last for 90-day. eufy 4G Starlight Camera's battery test was done in the following conditions: 

• Temperature: 68°F (20°C).

• 10 motion detections per day with 10-second recordings. 

• Live view access 5 times per day for 10 seconds. Standby power consumption was included in the usage time.

Please note battery life varies, depending on the number of times motion is detected, recording time duration, and environmental temperatures.