How to Charge an Electric Scooter without a Charger

How to charge an electric scooter without a charger

The electric scooter comes with a motor which usually starts using the power generated from the batteries. Hence it would be best if you charged the batteries on a regular basis. But what if you do not have access to the preferred charger for your electric scooter?

Not to worry because today, we will teach you how to charge an electric scooter without a charger in this guide. After the motor, the battery is widely regarded as the most critical component of the scooter.

One of the most fundamental things to check is that the scooter’s battery is completely charged. This can be accomplished either by consistent usage or, if necessary, by supplying the battery with the chosen charger.


How to charge an electric scooter without a charger

Because many people believe that scooter batteries can only be charged with the charger provided by the manufacturer, this is a fallacy. These chargers are not required to charge your scooter. However, you will undoubtedly need some equipment for this.


1. Using a portable car jumper

It’s one of the most effective ways to recharge your scooter’s battery. Most individuals nowadays utilize this approach since it is pretty handy. Let us check the steps you need to follow to charge your electric scooter battery.

  • Attach the car jumper to the battery

You must first connect your jumper to the battery in order to charge your scooter. This is because the positive port requires the red wire, whereas the negative port requires the black wire.

Make sure to check the battery for any leaks or brakes. It’s possible that using a car jumper on such batteries is harmful. You must also ensure that no other electronic equipment is connected to the jumper because it may drain the battery’s power and prevent it from charging.

  • Turning the jumper on

It’s time to start the jumper after the wires have been attached to the port. This is used to create the current flow from the jumper to the battery. The scooter batteries will charge as soon as the energy from the jumper is switched off.

It might take anything from 20 minutes to an hour to completely charge it. Make sure you don’t turn it off while it’s charging. Consequently, your battery may be damaged, and you may get electric shocks.

  • Battery level check

You may now examine the battery charge level, and you must check the battery level on your scooter after 20 minutes. If it is not fully charged, you must charge it several times until it is fully charged.

  • Disconnect the Jumper

When you reach the required charge level or the scooter, and the battery is fully charged. You may now unplug the wires from the battery and switch off the car jumper. You must exercise extreme caution to avoid being electrocuted while performing this task.

Begin by disconnecting the dark cable from the battery’s negative port, then connecting the cable to the positive port. When you’ve completed all of these steps, your electric scooter battery will be completely charged and ready to ride.


How to charge an electric scooter

2. Using a universal power adapter

If you are looking for alternatives on how to charge an electric scooter without a charger, then a universal power adapter is a great choice.

Those are items that can be found at any hardware shop. On the other hand, a universal power adapter is a handy gadget that you may find yourself using for a variety of purposes. It’s also superior to most other devices of its kind in that it works with as many gadgets as possible.

However, it, like any other technique, has certain dangers. Follow the guidelines below to charge your battery with a universal power converter securely.

  • Connect the power cable to the adapter

As stated, the adaptor can accommodate a variety of devices. You’ll be certain that one of the interface wires can suit your port in any case. Locate this one and connect it to the battery’s charging port.

Begin by putting the connections together. The positive electrode is connected to the red one, while the negative electrode is connected to the black one. Place them in the right position to keep a safe distance from any leaks that might result in a loss of intensity.

  • Switch off the power

Now you must turn off all electric plugs in the scooter, including the radio, lights, and other power-drawing components. If not, your charging process will be slowed, and energy will be wasted.

  • Setting up Voltage

This section is critical for your battery’s safety. First, you should consult the owner’s handbook to see how much voltage the scooter battery can handle. In that situation, contacting the makers is a fantastic idea.

However, setting the voltage to 4.30 per cell is usually sufficient. So it’s preferable if you keep it within this range.

  • Setting Up current

You must also be cautious of the current. You don’t want the battery to overheat if you use too much of it. Setting the current to 20% of the capacity of your scooter battery is suggested.

  • Wait for the charge

Now that you’ve completed the tasks outlined above, it’s time to take a break. As the provided current decreases, the battery will be charged. Allow the battery to charge for a long time.

The all-in-one adaptor builds much less voltage than its vehicle jumper counterpart. As a result, you won’t have to wait nearly as long as you would with a car jumper.

  • Disconnect

It’s time to unplug the battery and replace it in the scooter when the current drops to 3% or below. It’s possible that you’ll have to charge it a few times before it’s fully charged. Disconnect the power cord after the charge is complete.


3. Home Made portable charger

Making a homemade portable charger isn’t that hard, actually. You will need access to a few pieces of equipment, and you will be able to make a portable charger for your electric scooter battery by yourself.

This approach has the potential to harm the battery in the long term. Hence to avoid this, please be sure to follow the procedures below.

You’ll need deionized water or electrolyte for this. That can be easily found at any hardware shop. Then you’ll need some electrical wires to connect everything. You’ll also need a voltmeter and a hydrometer to see what’s going on and thoroughly examine the charging.

Gloves and eyewear are crucial safety precautions to take and make sure to work in a cool and dry place.

At first, remove the battery from the scooter and store it somewhere dry. Remove the chamber caps at the same time. All that’s left is to fill the compartments with deionized water. It’s important to pour it slowly.

You don’t want the water to pour all over the place. Connect the cords to the negative and positive terminals and turn on the power when you’re finished. Before going any further, you must double-check.

To check if the battery is ultimately charged, use a voltmeter. When it’s finished, turn it off and replace the chamber caps. Next, make sure the battery is securely fastened in position. That will complete the task and fully charge your battery.

electric scooter sitting on a home

Additional Tips for better battery life

The best way to avoid replacing the battery once now and then is to take care of the batteries properly. Down below, we will share some tips which will be really helpful for you to follow to get battery life.

  • No Overloading

Due to a variety of problems, an electric scooter may get overloaded at times. There is a weight capacity for your scooter that is ideal. On an electric scooter, you should never put too much weight on it.

These risks are overloading your scooter’s system, putting strain on the battery. So, to get the best battery life, check the cargo capacity and don’t overload your scooter.

  • Start the scooter slowly.

It’s preferable to take your time getting your scooter started. This relieves the strain on its battery. As a result, it will endure for a longer time. So, regardless of how highly Route Vibes ranks your scooter, take your time when accelerating to ensure the scooter battery’s longevity.

  • Energy saving

It’s an excellent habit to establish to switch your scooter off when you’re not riding. It will save a lot of energy. This also increases the battery’s durability. Also, be sure to charge it fully after each use.

  • Don’t change the speed regularly.

Changing the speed frequently is also not the greatest way to improve battery life. Cranking a scooter to peak speed all of a sudden is bad for the battery.

  • Pressure in tires

This is something else you should think about. Your e-scooter will ride much more smoothly if the tire pressure is increased. This also relieves the battery of a significant amount of load. So make sure to check the tire pressure from time to time to see whether it’s enough.


Charging different types of batteries

Batteries power electric scooters, but the batteries can vary even though we discussed common methods to charge an electric scooter battery without a charger. Down below, we will discuss exact charging methods for different battery types.


Lithium-ion battery

In today’s electric scooters, it’s the most often utilized battery. Therefore, it is suggested that the entire charge per cell be primarily 4.20 volts. Now all you have to do is adjust the voltage and current flow accordingly.

Make sure you properly examine the monitor to determine whether the linked cells are exceeding the voltage flow. When the charger is fully charged, you must unplug it. The charge per cell will reach 4.20 volts, and the current will decrease by 3%. That’s when you realize it’s time to unplug the charger.


Lead-Acid battery

Before you begin charging a lead-acid battery, you must first determine the voltage. In a battery, the number of cells usually determines this. After you’ve made the proper calculations, all you have to do now is charge it up using an adjustable power supply.

You’ll need to determine the voltage and current limitations for charging the battery. The average lead-acid cell, for example, has a volt per cell of 2 volts. So you’ll need to set the voltage to 12 volts for a 12-volt battery of that sort.

Furthermore, the charging current must be chosen in accordance with the battery’s size. For an average-sized lead-acid battery, it’s best to set the current to between 10% and 30% of the rated capacity.

Make sure to take a few precautions while charging a Lead Acid battery. While the battery is charging, keep an eye on the temperature, voltage, and current flow. Charge it only in a well-ventilated area with a comfortable temperature.

When the battery is fully charged, you should always remove the charger. Also, If you look at the battery charger information, you’ll notice that using a fluctuating power supply to charge a battery is dangerous. To prevent any danger, you must stay present at the moment.

It’s also worth noting that the voltage level should be kept slightly high. This prevents the battery from being damaged in the long run.


NiMH and NiCd Battery

To charge these batteries without a charger, you must take extra measures. First, you’ll be able to charge it using a power supply that may be adjusted. However, full-charge detection changes with charge current, making it difficult for you to determine.

It’s also a good idea to figure out how long it will take to charge. For example, at 750-1000mA, a normal 2Ah NiMH battery takes 3 hours to charge completely. On NiCd and NiMH batteries, however, you should use a voltmeter.

They should be between 13.7 and 13.9 volts. It is a better voltage. Anything less than a 12 bolt, on the other hand, indicates a low battery.



Charging an electric scooter battery without a charger is possible, but you need to follow the steps properly to avoid damaging your batteries. Hence, today in this guide, we discussed how to charge an electric scooter battery without a charger.

There are a few different methods that you can follow to charge electric scooter batteries. Make sure to read the steps carefully before rushing to charge the batteries. Also, go through our additional tips, which will help you to have a better battery life of your electric scooter battery.


Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *