BASIC INFO3.6V non-rechargeable d size lithium thionyl chloride battery; 19000 mAh; 33*61.5mm/1.3*2.42 inch, wide range of temperatures -55°C to +85°C; most suitable for low power consumption devices. please check carefully if the ER34615 battery is the size you need for your electronic device before purchasing. APPLICATION- Home automation sensors, door opening detector, temperature sensor, home alarm, bark collar, door sensor, remote control alarm, water meter, electricity meter, gas meter, medical equipment, flashlight, backup power etc. CAUTION!-Lithium thionyl chloride battery has a passivation characteristic. Therefore, we highly recommend customers use the battery within approximately 2-3 months, depending on the storage condition to receive optimal performance. Although our battery has a 10-year shelf life (under special storage conditions), we advise customers not to store batteries for a long time due to the passivation characteristic. It is highly recommended that you