Ovonic 750mAh 4S 80C LiPo battery is special designed for 130mm to 180mm size FPV.
And if your drone size is smaller, 650mah 4S 80C is available for 90mm to 150mm size FPV.
Specifications of 750mah 4S 14.8V battery:
Discharge Rate (C):80C
Battery Weight(dev.20g): 100g
Connector Type: XT30
Balancer Connector Type: JST-XHR
For the RC battery, only if the voltage and the plug match, then it will fit.
Please stop charging immediately when the cell voltage been charged to 4.2v (Normal cell voltage is between 3.7v~4.2v).
To double make sure safety, please have a check first whether the battery surface is alright when you get it and whether the voltage is normal before using.
If the new battery won’t hold a full charge or loss the charge very quickly in a short time, please use Balance Charger to charge and recycle several times first.