We're sorry to hear that the first light you opened was missing a spring for the battery. This is definitely not the experience we want for our customers, and we apologize for the inconvenience. We're more than willing to make things right for you. Kindly respond to this email with the images and the number of the affected items, and we'll work with you to find a solution that you'll be pleased with. Thank you, and we look forward to hearing from you.