Ring Door Sensor Battery Drain

I bought my Ring Security system 5 months ago and its been great so far. My Garage door sensor however is draining a lot of battery. Its currently on its 3rd set of Duracells in 5months and its becoming an issue. The door gets used at the most 5-6 times a week and its less than foot distance with the base station with a direct line of sight. I have reset it multiple times and haven't noticed any changes. Is it just a faulty sensor? If so, how do claim a new one