Energizer Ultimate Lithium batteries are the best and longest-lasting disposable batteries in high-tech devices, offering superior performance when used in high-tech devices. Why go a day without the devices you count on the most? Depend on Energizer Ultimate Lithium batteries for your most critical devices for work, play and home. Work - Whether used in a wireless mouse, for high-powered LED lighting, a laser level or stud finder, Energizer Ultimate Lithium batteries help you stay powered up on the job. Play - Love camping, fishing, hiking or hunting? Is gaming your preferred way to play? Whether your play is outdoors with a handheld GPS or indoors with a Wii, Energizer Ultimate Lithium helps you stay powered longer with the activities you love. Home - When capturing memories with your digital camera, protecting your home with a security system, or managing your remote controlled home devices, you want the World's Highest Energy batteries. Features Longest-lasting battery for high-tech devices Superior performance in extreme temperatures from -40 to 140 degrees - great for use in all seasons Holds power in storage for 20 years Lighter weight than alkaline batteries Leakproof