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 How do I know when the battery is getting low? How to program your Benjilock® By Hampton (Master User) Programming the "Master User" (VIDEO) What Type of Battery does the TSA Luggage Lock Use? Why does a Red LED flash for several seconds when I open or wake up my TSA Luggage Lock?