New and improved brushless high-power pedal generator

To charge a 12-volt battery, you need to charge with a 14-volt voltage,

To charge a 24 volt battery, 28 volts are required for charging.

This 14V generator can be directly equipped with a 12V DC motor.

This 28V generator can be directly equipped with a 24V DC motor.

12V battery=14V generator ,24V battery=28V generator

If the generator comes with a voltage stabilizer, just connect it directly to the battery