4 x 1100mAh Batteries Battery for DJI DJI Ryze Tello and Tello Edu + AC power 4 in 1 Quick charger 【Battery data】Cell Composition: Lithium Polymer Rated Capacity :1100mAh 4.18Wh Max Charge Voltage :4.35V Nominal Voltage :3.8V Battery 【Charger data】Input 120V--240V 50/60zH ,Output: DC4.35V 4A ,1A on each battery port, Charging time for 4 battery: 90mins 【Suitable For】 This batteries Compatible with Ryze Tello Drone , Support Original Charger 【Safe Function】Built in Protection Mechanism for Safe ,if the Battery Could Not be Charged, Please Load the Battery into Drone and then Connect Drone to Charger. It is to Activate Battery 【Including 】You Can Get 4pcs Batteries and One Charger like the picture show