According to this question, we also tried to connect the HBX 3101A RC car to a 3S battery, and found that the 11.1V battery is more explosive, and the RC car’s battery, ESC, and motor didn’t burn out. It shows that the HBX 3101A was launched with the possibility for players to convert to 3S batteries, which improves their motivation to play.
Therefore, many players who are looking for faster speed can change the 2S battery to 3S battery and can enjoy the fun of 70km/h.
There will be new players wondering what a 2S battery is? What is a 3S battery?
2S refers to 2 batteries in series, while 3S batteries are 3 batteries in series, the voltage of the series will rise, so 2S and 3S corresponding to the voltage value is different, under normal circumstances can not be replaced at will. But HBX 3101A RC car is brushless version, so the motor is able to ensure 3S battery.