Compatible with CrystalSky monitors, Cendence remote controller, and DJI RC Plus this 2s 4920 mAh battery has excellent discharge performance at low temperatures and charges quickly. One battery offers four to five hours of operating time for a 7.85" CrystalSky monitor, five to six hours for a 5.5" CrystalSky monitor, and four hours for a Cendence remote controller.