Details: Designed to outperform alkaline batteries Fast charging with a USB-C port on each battery Easy to use included charging cable can charge 4 batteries at once Each Paleblue battery can prevent up to 1,000 single use batteries from being thrown away Includes: 2 Paleblue 9V Batteries 1 Charging Cable Specifications: Power: 4500 mWh Voltage: 9V Capacity: 500 mAh Charging Time: 60 minutes