The batteries drain too quickly.

The battery life will vary depending on the functions and operations that are used on the unit. Follow these steps to troubleshoot rapidly-draining batteries:

1. Ensure the batteries are clean and free of corrosion.
2. Try using a different brand of alkaline batteries.
3. Do not mix used batteries with fresh ones.

The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required.