9V Lithium Battery, Enegitech 4 Pack 1200mAh Non-Rechargeable Li-ion Battery for Smoke Detector Fire Alarm Multimeter

【Comparison 1】Enegitech 1200mAh batteries last 2x longer than 600mAh lithium battery. Up to 10-year backup battery in ac-powered smoke detectors and fire alarms. 【Comparison 2】Ultra high energy density and lasts 3-5 times longer than ordinary alkaline batteries in high current drain devices like digital cameras. 【Wide Applications】smoke detectors, fire alarms, multi-meters, Infrared Thermometer, Laser Thermometer, Temperature Gun,remote transmitter, stud finder, Wall Scanner, mini photo printer, vital signs monitor and 9v lithium battery enabled devices. 【Performance】Fast flash performance with a consistent and very short recycle time. Factory fresh battery 10 years shelf life. 【Protection】Built-in smart protection ensures good performance in any extreme weather or temperature from -20℃ ～ 60℃ / -4°F ～ 140°F.