Hi there, we apologize for the inconvenience you experienced with our Extended Run-Time Multi-Color 450 Lumen LED Headlamp. We understand that the batteries were dead and even after replacing them, the headlamp won't shut off. Please note that our product is covered by a limited lifetime warranty. If you submit a warranty claim on our website, we can get it replaced for you. Thank you for bringing this to our attention and we hope to resolve this issue for you. Have a great day!