What does the signal strength indicator show for the camera? The symptoms you're describing can often be due to interference or poor connectivity. You might try moving your SmartHub as far away from your router as possible to eliminate potential interference.
If the signal strength fluctuates or is poor, this will cause the battery drain faster than expected due to the camera struggling to maintain it's connection with the SmartHub.
You may need to relocate the camera and/or SmartHub to improve connectivity.
Relocating cameras or the hub? The hub may be easier - use a WiFi or powerline extender if necessary to move the hub to a better location. Otherwise, you may need a second hub to get optimal connections.
My batteries last around a at least a month or two. So it has to be something with your placement or other devices causing interference since they drain in 3 days with little usage. You can try to move the hub as far away from the router as the cable will allow. Also not sure what you meant about the base station being 8-20 feet from the base station in you first post. I assume you meant cameras.
Leaving the garage?! It’s right above it?! So disappointed in this system