Compatibility: Holy Stone HS720R and HS720G Drone. Fly Longer: This Intelligent Flight Battery provides a maximum flight time of 26 minutes. With a built-in Holy Stone Intelligent Battery Management System, battery status is monitored and reported in real time, allowing you to focus less on power levels and more on flying. Safety: Protection for overcharging, over-discharging protection, and low temperatures. Performance: Higher energy density with less weight. Holy Stone HS720R Intelligent Modular Battery, Upgraded Battery for HS720R and HS720G Drone, Replacement Spare Battery 2950mAh 26min Flight Time Accessory for Holy Stone HS720 and HS720G