BETAFPV BT2.0 550mAh 1S 40C HV Battery 4pcs/8pcs for Cetus Pro/Cetus X

Note: The standard voltage of the battery outer packaging has been changed to 3.8V, and the actual fully charged battery cell is 4.3V. The change in the outer packaging does not affect the battery's use. If you mind, please do not shoot!!