A range extender, also known as a "range enhancer," is a critical piece of equipment that can provide additional power to electric vehicles such as electric vehicles, e-bikes, and e-motorcycles. When an EV's battery is running low, a range extender steps in to extend the EV's range by providing additional power. 
A range extender typically consists of core components such as a generator, engine, and controller. Among them, generators play an important role in converting mechanical energy into electrical energyThe engine, on the other hand, provides mechanical energy and is the "power source" of the range extenderThe controller precisely controls the speed and output power of the engine to ensure that the generator outputs power stably. These three work together to form the heart of the range extender. 
The technical principle of the range extender is to use the mechanical energy generated by the engine, convert it into electrical energy through the generator, and then transmit the electric energy to the battery of the electric vehicle through the controller for storage. When an electric vehicle needs electricity, the stored electrical energy will be transmitted to the electric vehicle's motor through the controller to drive the electric vehicle. 
In addition to shining in the field of electric vehicles, the range extender is used far beyond that. In many fields such as ships and aviation, range extenders play an important role in providing additional power and energy. Their wide range of applications makes range extenders an indispensable part of the energy and transportation sectors. 
With the rapid development of technology, the performance and efficiency of range extenders are also improving. In the future, we have reason to believe that range extenders will bring more possibilities to the energy and transportation fields, and bring more convenience and surprises to our lives.