Ultralife Lithium Power Cell U9VL, U9VL-J-PUltralife 9 Volt Lithium Battery U9VL, 10 Year Long Life BatteryThe Ultralife U9VL 9 volt lithium battery is a standard 9 volt device battery that lasts approximately 5 times longer than conventional 9 volt alkaline batteries and 10 times longer than zinc carbon batteries. Attention: not rechargeable, because disposable lithium batteryAlso suitable for the ULTRALIFE, 9 Volt Lithium Li/Mn02 block battery ( U9VL-J / 6F22 / 1604LC / smoke detector battery) 9V, 1200mAh, weight 36 g, dimensions: 26.5 x 49 x 17.5 mm. Order unit/price unit =1 pc (loose), PU=10 pc (carton)With up to 10 years life expectancy in ionisation smoke detectors, the Ultralife 9 volt battery is the first choice for smoke detectors, alarm systems and similar devices designed for use for up to 10 years. These batteries are also ideal for all 9 volt applications such as medical equipment, wireless alarm and security systems, music, audio and industrial products, smoke detectors (suitable for almost all commercially available smoke detectors, for more information see the smoke detector operating instructions) and many other devices. Technical data (Ultralife Lithium Battery U9VL, non-rechargeable): System: U9VL, 6AM6 Lithium Manganese Dioxide Li/MnO2 BatteryVoltage: 9.0 volts, Nominal capacity: 1200mAh, Dimensions (LxWxH): approx. 49x26.5x17.5mm, Weight: 36.4 grams Temperature range: -20°C to +60°C, 10 year battery, if your smoke detector can provide this, it is usually written in the instruction manual!Designations: U9VL-J-P, U9VL, U9VL-J, U9VL-FP, SLM 9, 6FR61.