What is the Battery Life Expectancy of the TSA Luggage Lock? Denise March 07, 2020 03:18 Follow Under normal use, the battery should hold a charge for up to 6 months. (Normal Use = Roughly 5 activations per day.) Related articles What Type of Battery does the TSA Luggage Lock Use? Can I do a Master Reset without the Master User? How do I know when my TSA Luggage Lock is fully charged?