U-tec Ultra Lithium battery provides more reliable, longer-lasting power to your electronic devices and has a longer shelf life of up to 10 years. These batteries last up to 4 times longer than AA alkaline batteries, which works perfectly for your high tech devices. They were designed to power most digital cameras and is resistant to high temperatures, making it a great choice for outdoor use. They deliver a steady charge and is unaffected by extreme temperatures (high or low). Unlike alkaline batteries, which are prone to leaks, these U-tec batteries are engineered with leak-resistant features, so there is little risk of them corroding and damaging the terminals of your device. Easily disposable, the lithium battery is also a safer option to have around the home because it does not contain toxic compounds such as lead, mercury, or cadmium.