Originally Posted by
mr lee
That stuttering is a sign of the battery going flat!
Also 700Mah is not going to get you much run time. Depending on the type of racing you are doing you really don't want to do more than 10 minutes otherwise you will overheat the motor....unless you run a fan on the heatsink then it should be fine!
Thanks Mr. Lee, found out that the charger I bought was defective, got it replaced and voila, been running ever since.