About this item 9V Lithium battery: 5400mWh 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 provided 4 in 1 micro USB cable, no need extra battery charger. The build-in LED lights allow you to check the charging status. High Performance: EBL Li-ion batteries with 5400mWh 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. The Details Battery Type: Rechargeable Battery Capacity: 5400mWh Voltage: 9V Chemical Composition: Li-ion Battery Weight 144 Grams Compatible Devices Fire Alarm, Led lights, Toy Reusability Rechargeable Recycle time: up to 1200 times Charging Time: about 2 Hours Charging Current: 5V/1A USB Cable Input: USB 5V Output: Micro USB Cable Color: White Package 4x EBL 9V Rechargeable Batteries 2x USB Cable