Obstacle avoidance device 1. 3.7V 3800mah Battery Original Battery for ZLL SG901 MAX Drone Quadcopter. Original 3.7V 3000mAh Battery for M22/M22 MAX/M33/M33 MAX Drone. Original 7.4V 1300mAh Battery Spare Battery for YL059 Drone Quadcopter.
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