1. The generator is broken (this rarely happens, replace the generator or repair the generator).
2. The generator regulator is broken (Ruifeng is prone to this common problem, so replace the regulator).
3. The power generation output terminal has poor contact (very rare, clean the dirt and tighten the terminals).
4. The battery does not store electricity (it may be that after the generator regulator is broken, the generated voltage is high and the battery is burned out. Inspection method: 1) Check whether the battery water is turbid. If it is turbid, it means it is burned out. of. Be sure to repair the generator and replace the regulator. Otherwise, the new battery will burn out. 2) Use a meter to measure the power generation voltage. If the idle speed is lower than 13.8v and the full throttle is higher than 14.8v, there is a problem with the regulator.)
5. The belt is loose and the power generation is not enough (it is easy to happen, especially for diesel Ruifeng, Just loosen the tight belt. If it is a diesel engine, carefully check whether the connecting hole between the generator and the engine is worn and if it is loose, repair it in time.)