Deans connectors are what's popular, female side being on the battery and the male side on the ESC.
LOSI 8IGHT-E 2.0
TEKIN RX8 Trinity D8 1950
Spektrum DX3S/SR3500 JR 8711
X-Ray NT1, Losi XXX-SCB/Micro T, CRC GenXL, Blade 120SR
If everything is under control, you are going too slow- Mario Andretti