300mAh 2S battery owns more powerful performance with stronger mobility and higher sensitivity under high-speed flight. Moreover, it is suitable for Beta75X, Mobula 7 and Eachine Trashcan 2S brushless Whoop drone.
Item: 300mAh 2S 45C Battery
Size: 45*17*12 mm
Connector: XT30 with 18AWG silicone wire
Pack: 2S 7.4V
Compare to 350mAh 2S battery, this 300mAh 2S battery is 3g lighter weight while improving to 45C, that would be the best recommendation for using on Beta75X.