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)
EMAX 450mah 1S 3.8V 80C-160C HV Lipo Battery PH2.0 ( 1pcs )
Betafpv BT2.0 300mAh 1S 30C Battery (1PCS)
4 Port 1S 3.7V Lipo Battery Micro losi 2 USB Charger & 1S 3.7V 400mAh battery
BETAFPV LAVA Series 2S 450mAh LiPo Battery
Spektrum 300mAh 3S 11.1V 30C LiPo Battery JST Connector For Rc Airplane
