ORIGINAL: dcfever

just had first run today!
3S was too much power, wheelie all the way, almost too hard to control
2S fast enough, wheelie whenever full gas, very fun

however, electronic died after my second battery. not sure if the motor or esc. the esc still has the LED light on ok (green(throttle), red (brake), yellow (neutral)), but beep disappeared (should have sound whenever connected to battery). Then the car not moving at all...
anyone knows what can be wrong?? thanks