Ansmann Extreme AAA, AA 9V e-Block (PP3) Lithium Batteries - Ansmann 1505-0000, The ANSMANN Extreme Lithium Battery is a new generation of battery which can be used in high-tech appliances as well as for everyday household devices. The Lithium Battery is 35% lighter, has more energy, more capacity and an extremely long life cycle when compared to standard ALKALINE batteries. The Extreme Lithium Battery has three times the capacity of a conventional ALKALINE battery and seven times more compared with a zinc-carbon battery. In addition, lithium batteries can be stored without use for up to 10 years. The 9V e-block battery is rated at 1200mAh. These batteries are commonly called PP3 and are used mainly for home protection, smoke detectors, engineering, security and medical applications where frequent battery changes are inconvenient or impractical and can be used in any 9V device. Ansmann 1505-0000 Extreme Lithium 9V Block Battery