X5 Ultra BatteryUpgraded capacity, unlimited potential.Uninterrupted creativity.Record for up to 235 minutes with a larger 2800mAh battery and a 17% increase in capacity compared to the standard X5 battery.Notes: Tested in 77 Degree F (25 Degree C) lab environment, 5.7K24fps 360 Degree Video Mode in Endurance Mode. Battery life may vary under different conditions. Please update X5's firmware to v1.3.0 or later.Smarter storage.Included storage case protects your battery and offers an Sd card slot for easy organization and transport.Cold-weather ready.Engineered to perform at temperatures as low as -4 Degree F (-20 Degree C). Full power even in freezing environments..