EVO II Intelligent Flight Battery, with a rated capacity of 82 Wh, has high-energy-density polymer lithium-ion cells. Its cells, powered by laminated cell technology, which greatly reduces the internal resistance and improves the available capacity of the battery, provide an excellent battery life of 40 min. The built-in Autel intelligent battery management system intelligently monitors battery power and various states of the battery, and can accurately calculate the remaining battery life to guarantee flight safety. It has multiple safety protections to prevent overcharge, overdischarge, overcurrent, overtemperature, undertemperature, short circuit, etc. It also enables static equalization, self-discharge storage mode, and ultra-low power mode.