UTTORA  Upgraded 4in1 Parallel Balance Rapid Battery Charger with 4pcs 3.7V 600mAh Li-Po Battery for Parrot MiniDrone Rolling Spider and Jumping Sumo Quick charging 4pcs batteries simultaneously, which effectively reduces your charging time. Li-po battery charger with circuit protective IC in each charge socket. Over charge protection and overcurrent protection, avoid high current damage your battery. Auto Shut Off and built-in LED indicator, shows charging status. Suitable for: Parrot Mini Drone Rolling Spider or Upgrade Parrot Mini Drone Jumping Sumo.