Diagnosis
No, that's not normal at all. A fresh CR2032 battery in the tilt sensor should last over a year. A weekly drain points to a faulty sensor or, more likely, a communication problem forcing it to constantly shout to try and reach the main unit.
How to Fix It
First, replace the battery with a fresh, name-brand one (like Duracell or Energizer). Cheap batteries can cause this. After putting in the new battery, you need to re-pair the sensor. Bring the sensor close to the main iSmartGate Pro unit. In the app, go to Sensors > Tilt Sensor > Advanced > Re-pair Sensor. Follow the on-screen prompts, which usually involve pressing a button on the sensor itself. This establishes a clean, strong connection.
If That Didn't Work
The distance or obstacles might be the culprit. The sensor uses a radio signal, and things like metal ductwork, water heaters, or thick concrete walls between it and the main unit can kill the signal. Try moving the main iSmartGate unit to a more central location in the garage if possible, or relocate the tilt sensor itself.
Heads Up
Avoid sticking the tilt sensor directly onto a metal garage door panel. The metal can interfere with the signal. Use the provided adhesive on a wooden cross-beam or the top corner of a non-metal door section for best results.