- The first choice for smoke detectors.- The VARTA 9V lithium battery contains no mercury, lead or cadmium.- Last up to 5 times longer than usual 9V alkaline and 10 times longer than carbon-zinc batteries.- Works outstandingly at extreme temperatures from -20°C up to +60°C.- Can be stored up to 10 years without leakage.- Precise energy for analog and digital cameras: VARTA Professional Lithium Batteries.- Precise energy, perfectly aligned to the different functions of the photo devices.- Higher performance for more photos, more flashes, more mobility and therefore more independence.