Ring Doorbell 2 Battery discharge

I have two ring doorbell 2 units and one drains the battery in 2 weeks and the other can go 6 weeks. Interchange the batteries and nothing changes. Both doorbells only record if the button is pressed. No motion, screenshots, live view are configured on these two units. Is something wrong with the one causing it to discharge so fast? The one that last 6 weeks is used much more then the one that last 2 weeks. Even at times the 2 week one hasn’t recorded a thing before the battery needs charged.