How often does the sensor need to be charged? January 16, 2024 21:05 Updated When not being used, the sensor should remain on the charger or put into ship mode after being fully charged. The sensor battery life lasts between 3-5 days depending on the sensor configuration. Related articles What do the LEDs on the sensor indicate? What if I notice a skin reaction after using a sensor? How is the sensor charged? Why is my sensor not turning on? How can I tell if the sensor is collecting data?