How to Increase the Speed of a New National Standard 48V 350W Motor?
2 Answers
To modify three things; the motor, controller, and battery. The specific modifications are as follows; 1. Unlock the speed limit; Do not turn on the key, first hold the brake handle, while adjusting the throttle to the maximum position, then turn on the key switch, let the throttle return to its original position, and then turn to the maximum position again, repeat this three times, the last time hold for five to eight seconds, and it can be unlocked. 2. Add a battery in series to increase the voltage; Under the rated voltage, the motor is generally under constant torque speed regulation, and the voltage output by the controller generally does not exceed the rated voltage, and the motor can normally only work under the rated voltage, but this does not mean that the motor really cannot work under overvoltage.
I often modify electric bikes myself. For speeding up a new national standard 48V350W motor, you can try replacing the controller with a model that has a higher output current, which can increase the speed from 25km to over 35km—the effect is quite noticeable. I've modified one before, and matching the 48V voltage is key; don't exceed it or you'll burn out the components. Upgrading to a high-capacity battery is also important for stable power, but be aware that illegal modifications can result in fines from traffic police and may void the warranty. For weight reduction, remove unnecessary parts like unused baskets and switch to lightweight tires to reduce resistance, making acceleration smoother. During routine maintenance, check wire connections to avoid short circuits. In short, DIY is fun, but safety comes first—wear protective gear and test in slow lanes.
