9V Li-ion USB Rechargeable Batteries 650mAh 9 Volt Lithium Ion Battery Pack Features: 9V Lithium battery: 650mWh long lasting Li-ion batteries without memory effect, provide steady voltage until the whole cell is depleted. Recharge Up to 1200 Cycles: These USB rechargeable batteries have longer battery life than disposable alkaline batteries, economic and saving your money. Quick charge in 2 hours: Advanced iQuick charging technology with DC 5V/2A USB input, the batteries are full charged in 2 hours, save time and more efficient. Unique USB Charging Design: Convenient to charge anywhere directly with micro USB cable, no need extra battery charger. The build-in LED lights allow you to check the charging status. High Performance: Li-ion batteries with 650mWh capacity, support stable power and longer working time for high frequently used devices, such as smoke/fire alarms, wireless microphone, toys, GPS, home security devices, medical devices etc. Style A: with Charging port & Cable Specification: Product: 9v lithium battery Nominal voltage: 9V Nominal capacity: 650 mA Charging voltage: 5V Charging time: 1.5h Battery life: 1200 times Charging indicator: charging red light, full blue light Battery temperature: -20°C~60°C Product size: 10*14*2cm/pc Product weight (including packaging): 75g/2pcs; Scope of application: can be used for alarms, remote control toys, wireless doorbell, wireless headphones, multimeter and other products A set contains: 2 * 9V lithium battery 1 * a charge two of the charging cable