What Charges the Battery on a Motorcycle?

Do you ever wonder why you don’t need to recharge your motorcycle’s battery? This is because battery charging happens when the engine is on and the motorcycle is moving. In this article, you will specifically know what charges the battery on a motorcycle, so enjoy as you read through.

The Alternator Produces Alternating Current

The stator is the motorbike’s alternator, and it produces alternating current due to the wheel’s rotation. The flywheel contains magnets that are responsible for the generation of the current. It is important to note that the principle behind charging the battery in vehicles and motorcycles is the same. A motorcycle is usually installed with an alternator and a regulator. The function of the alternator is to create alternating currents that are significant in charging the battery. The alternator also produces alternating currents to run the engine, thus keeping the motorcycle in motion.

The Regulator Converts the Alternating Current to Direct Current

When it comes to the regulator, its primary function is to convert the alternating current generated in the alternator into direct current. This is to say that the motorcycle’s battery can only store current in direct current and not alternating current. The regulator also performs the function of controlling the quantity of direct current entering the battery. This is an essential part of a motorcycle since it stops the battery from overcharging.

You can tell a special mutual connection between the wheel, the stator (the motorbike’s alternator), and the regulator from the above information. All these key components contribute to the charging of the motorcycle’s battery.


Being a competent motorcyclist requires you to be familiar with the functioning of each part of the motorcycle. Therefore, if your motorcycle’s battery is not charging, try and check whether the alternator and the regulator are in good functioning conditions.

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Writer @ Motorcycleall.

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