Can You Start A Motorcycle While The Battery Is Charging

Can You Start A Motorcycle While The Battery Is Charging? In-Depth Answer

People who are stuck or in a rush may find it helpful to be able to start their motorbike while the battery is being charged. However, there are consequences attached to it, which can damage your motorcycle if not taken care of.

So, can you start a motorcycle while the battery is charging? Yes, you can if it’s a traditional motorcycle with a trickle or factory-dedicated battery charger. However, it is less safe for motorcycles with modern charging systems. There are mechanisms installed in the charging system that can damage the motorcycle.

Nevertheless, knowing how the battery works is critical here. We will cover the conditions required to start a motorcycle while being charged and the expected damages. 

Can You Start A Motorcycle While The Battery Is Charging?

Starting your motorcycle while charging batteries should never be your first choice. However, it can be viable for traditional motorbikes in emergencies. It is only possible using a trickle or factory-dedicated motorcycle battery charger since it provides consistent current.

How The Motorcycle Charging System Works

On the other hand, starting the engine while charging a modern motorbike is unsafe, no matter what charger you use. The modern charging system includes a voltage regulator and an intelligent charging system. 

These technologies control the charging system and don’t let the alternator pass current directly to the battery. To understand this, you need to know how the charging system works. This will help you see how modern technology can be problematic when starting a motorcycle while charging.

How The Motorcycle Charging System Works

How The Motorcycle Charging System Works

(SOURCE)

Lead plates and sulfuric acid react to generate electrical energy in your motorcycle’s battery. However, that energy doesn’t go directly to your motorbike, and this is where the role of an alternator comes in. 

The alternator divides the electrical energy into two parts. One part of the energy powers the motorcycle’s electrical systems, and the other fills the battery. 

On the other hand, the charging system is equipped with additional protection in modern motorcycles. To avoid overcharging and increase battery life, these systems monitor the battery’s charge level and modify the charging voltage and current accordingly. This contributes to a better battery lifespan. 

However, this is also why the electrical energy can’t go directly from the alternator to the motorcycle’s electrical system. It needs to pass through multiple safety checks before being received by the electrical system.

Conversely, traditional motorcycles can charge their battery while starting the engine in emergencies. This is because the alternator directly passes the electrical energy to the system and is independent of the charging system. 

What Happens When You Start A Motorcycle While The Battery Is Charging?

Here are the issues you will encounter if you start a motorcycle while the battery is charging;

What Happens When You Start A Motorcycle While The Battery Is Charging
  • Overload: Starting the motorcycle while the battery is charging could cause an overload if the battery is weak. This might affect parts of the charging system, like the alternator or voltage regulator, or cause electrical lines to get overheated.
  • Voltage Surges: When the engine is turned on, a lot of energy is drawn from the battery, causing voltage surges. If the charging system cannot regulate these surges well, it could damage sensitive electrical parts.
  • Warranty: Since manufacturers don’t support charging batteries while starting the motorcycle, warranty concerns get involved. The possibility of damage to certain electrical components or systems increases, which could void your motorbike’s warranty.
  • Electrical System Malfunction: While it doesn’t happen often, starting the engine while the battery is charging could cause problems with the motorbike’s electrical system. This involves unstable operation of the lights, gauges, or other electrical parts, which could point to problems with power distribution or voltage control.
  • Backfeeding Risk: If you try to start the motorcycle while it is still attached, you could send a lot of amps back into the charger. This might damage the charger or make it fail to function correctly.

Nevertheless, we did mention it is not safe, but that doesn’t mean you can’t start a motorcycle while the battery is charging. With a traditional charging system, the likelihood of your motorcycle’s system being damaged is low. However, doing it frequently can cause the above mentioned damages.

On the other hand, the possibility of damage is higher in modern charging systems than in traditional ones.

Overall, it’s best not to start the engine while the battery is charging to minimize damage.

How To Know Your Motorcycle Can Start While Being Charged Safely

The only way to know whether your motorcycle can start while being charged safely is by determining whether your motorcycle is traditional or modern. So, let’s check out the ways you can ensure that.

Motorcycle’s Manual

If you have access to your motorcycle’s manual, go to the section about its electrical system, including the type of charging system used. If it’s a trickle or factory-dedicated battery charger, it’s most likely a traditional charging system.

Furthermore, check whether your motorcycle is equipped with smart technologies. If so, it is a modern charging system, and you shouldn’t charge it while starting the motorbike.

Inspect the Charging Components

(SOURCE)

Inspect the charging components only if you have prior essential maintenance experience. A traditional motorcycle’s charging components include an alternator, voltage regulator, rectifier, and battery. 

On the other hand, modern charging systems have additional components such as control modules and sensors.

Here’s a video that should help;

Go To A Professional

If you still need clarification, seeking help from a professional is the best way. Ask a qualified mechanic for advice on whether your motorcycle can get charged while it’s starting. They should have a definite answer based on their experience. 

Furthermore, they can perform diagnostic assessments and give you answers.

FAQ

Let’s check out some questions about starting a motorcycle while the battery is charging.

1. Can I start my motorbike with a jump starter while the battery charges?

You shouldn’t use a jump starter while the battery is charging most of the time. If you disconnect the power source before you try to start the engine, there is less chance of electrical problems that could damage sensitive parts.

2. Can I start my motorbike immediately after taking it off the charger?

Starting your motorbike immediately after taking it off the charger is usually safe, especially if the battery has been charged enough. But it’s best to wait a few seconds for the electrical system to settle down before starting the engine.

Conclusion

Regarding safety, the response to the question can you start a motorcycle while the battery is charging is always no. However, you can do it in emergencies with a traditional charging system with a trickle or factory-dedicated motorcycle battery charger.

On the other hand, the risk is more for modern charging systems as the alternator doesn’t get to pass the electrical energy directly to the motorcycle. As a result, it is best to avoid charging while starting the motorcycle.

Similar Posts