Video Doorbell Plus (Battery)

So in the last week or so I have noticed my Video Doorbell Plus is lossing significant battery (40-60%) per day. I am still getting the same amount of notifications. I've never have the battery drain this quick in the last 6 months since purchasing this device. I thought it maybe the battery but I have had 3 battery changes and it drains them all in the same manner. I have a theory that it could be to do with the warmer weather, maybe draining the battery quicker. But I don't know if that could be possible. I have reset the doorbell to factory settings twice and also reconnected to the WiFi a few times but nothing seems to help the battery life. Any help would be appreciated 🙂