Nominal voltage ：7.4V Full charge voltage ：8.4V Discharge cut-off voltage ：5.5V Product Features: * Brand new 9V 1200mAh 6F22 li-ion rechargeable battery with high quality and competitive price *2 hours fast charging, use the data cable to charge, only 2 hours to fully charge. Charge show red light, charge full turn green light. * High energy density, long lifespan, and can be recharged up to 1,200 times in any 9V battery charger, more durable to use * Compact and rechargeable, so you can carry it anywhere anytime, more convenient to use *Mercury free, cadmium free, environmentally friendly, more secure to use it; * Primary applications: building alarms, monitoring and security systems, GPS, emergency transmitters, radio communication devices, Intelligent door lock , garage door open Note: 1. the package included is according to what you choose !! 2.Any problems,please kindly contact us by message !! For 9V lithium ion battery: Nominal voltage ： 7.4V Full charge voltage ： 8.4V Discharge cut-off voltage ： 5.5V Product Features: * Brand new 9V 1200mAh 6F22 li-ion rechargeable battery with high quality and competitive price *2 hours fast charging, use the data cable to charge, only 2 hours to fully charge. Charge show red light, charge full turn green light. * High energy density, long lifespan, and can be recharged up to 1,200 times in any 9V battery charger, more durable to use * Compact and rechargeable, so you can carry it anywhere anytime, more convenient to use *Mercury free, cadmium free, environmentally friendly, more secure to use it; * Primary applications: building alarms, monitoring and security systems, GPS, emergency transmitters, radio communication devices, Intelligent door lock , garage door opener, car remote control,key fob, wireless doorbell, ceiling fan, GPS tracker,home alarm system, security device, igniter,LED flashlight, toy, clock, razor, electronic dictionar，ect Product Specification: Model: 6F22 Type:Lithium Battery Voltage: 9V （actually 8.4V ） Capacity:1200mAh Size:48*16*26mm Rechargeable:Yes Charging time: 2 hours Package Includes： 6x battery 6x cable 3x case box