1. When to Replace:

   - Replace the battery when the LED display or Bluetooth indicator starts to dim, or when the scale function is not operating properly.

2. How to Replace:

   - Locate the Battery Compartment (G) on the back of the lock.
   - Use a small screwdriver or coin to open the battery compartment cover.
   - Remove the old CR2032 coin cell battery.
   - Insert a new CR2032 battery, ensuring the positive (+) side is facing up.
   - Close the battery compartment cover securely.