There is a graph of comparison between BT2.0 connector 1S 450mAh battery and Emax 1S 450mAh battery. Connector: Betafpv BT2.0 connector. BT2.0 CONNECTOR. Much more choices of BT2.0 series accessories.
BETAFPV BT2.0 450mAh 1S 30C Battery (4PCS)
Betafpv BT2.0 300mAh 1S 30C Battery (1PCS)
Dromida DIDH1101 Drone Battery LiPo 3.7V 900mAh 30C Horizon Hobby
2 New Box Stock Losi Nascar Grom Smart Battery 1400 30c 2s G2 New Takeout
For Micro RC LIPO BATTERY 7.4V 150MAH 2S -30C- (1PCS)
2 New Box Stock Losi Nascar Grom Battery 1400 30c 2s G2 New Takeout + Charger
