How to Charge an Electric Scooter Without a Charger?

How to Charge an Electric Scooter Without a Charger

Electric vehicles are becoming increasingly popular all over the world and around the world. Since these devices are inexpensive and straightforward to operate, they are also supported by governments of the world.

In such vehicles, we store electrical energy and charge the battery from time to time to power the motor. The problem arises when your charger is lost or broken. In this article, we will show you how to charge an electric scooter without a charger.

The motor that powers electric scooters need power to function. Your electric scooter won’t start if the power levels are too low because the motor won’t work.

We believe that charging our electric scooter requires the use of a charger, but we can do it without one. These methods can also be applied to razor scooters.

Here are some methods to charge an electric scooter without a charger.

How to Charge an Electric Scooter Without a Charger?

1. Fill The Slots with Deionized Liquid or Electrolytes.

Put the battery on a dry surface and remove the chamber caps. Fill the chambers with electrolytes or deionized water. Connect the charger links to the positive and negative terminals and turn on the power. Ensure you maintain a proper distance from air pockets. When the battery gets charged fully, check the charge with a voltmeter. At last, set the tops on the chamber.

2. Using A Car Jumper

These are the most convenient batteries to charge your scooter if you don’t have a charger. By using this technique, you have to follow the process.

The first thing is to connect up the black to the negative or black lead and leave the red unconnected just put it aside. And then connect the other side to the battery on the scooter and then put the red on the plus or red lead. After you connect the wires to the particular ports, switch on the jumper to charge your battery.

It is going to take less or more than 30 minutes approximately. Don’t disconnect it while charging.

Don’t do this while your car is on because the alternative will cause the voltage to jump up, and the scooter batteries won’t be able to handle that.

At last disconnect, the jumper, be careful you can get shocked while doing it.

3. Universal power adapter

 It is an electronic device you can purchase online or in a hardware store.

Start with connecting the connectors, as explained earlier, by clicking the black one to the negative post and the red one to the positive post.

Since this 12 volts’ battery requires a voltage of about 14 units to charge, we cannot connect it directly to your acid battery because then your battery will be overcharged and heated up, causing it to become damaged. So instead, we need something between the universal charger and the battery to charge it and check its voltage safely. Alternatively, you can check the user’s manual.

After you have completed all the steps, wait for the battery to charge. As the battery charges, the current supply will drop. You can now disconnect it.

Battery Charging Methods for Lead-Acid Scooter Batteries and Nickel-Metal Hydride Batteries

First, find a dry place where you can store the battery. Next, connect your scooter battery to a power supply and calculate the voltage based on the charge voltage. You should adjust the voltage according to your calculation. For example, if you want to charge a 12-volt lead-acid battery to a voltage limit of 2.40v (these have six cells), multiply it by 6. For example, 2.40 x 6 = 14.40, and set your voltage limit at 14.40.

Continuing our discussion about scooter batteries, let’s consider NiCd & NiMH.

Batteries provide the scooter with electrical energy via chemical reactions. By looking at the temperature increase, you can tell whether it is charging after connecting it to a power source. Temperatures that rise from 0.3 to 1-degree Celsius indicate that the battery has been fully charged.

Tools Required to Charge Electric Scooter Without a Charger

  • You charge your electric scooter using electrolyte or Deionized water (you can get these in any hardware store in your area).
  • An electric cable is needed to connect the devices
  • Voltmeter and hydrometer to check that the charging is working properly 
  • To ensure your safety, gloves and goggles are essential

Working on an excellent, dry surface will be necessary. Safety is vital while charging your scooter, so wear gloves and goggles for your security before starting.

First, you have to open your scooter bed and turn off the mic by shutting it down and opening the battery box. Two batteries are present with an attached plug to the scooter, and you can now remove the battery. It will be heavy so handle it carefully. Place the battery on a dry and clear surface.


With this guide, you will learn how to charge a battery on an electric scooter. Described here are tips for charging the battery of your scooter and how to avoid any problems.

Related Post: How to Fix a Razor Electric Scooter?

Frequently Asked Questions

What to Do When Your Scooter Charger Does Not Charge Your Scooter Battery?

If the scooter charger you used does not charge your scooter, you may want to try the charger on another model of the same scooter. If it’s still not charging, it is an indication that your charger is not good.

How to Check If the Battery of My Electric Scooter Is Charged?

When the scooter has been fully charged, the lighting will turn green. Continue to charge the scooter’s battery until it flashes green light. Depending on the type of scooter battery, it can take a time of at least 3 to 12 hours to charge the battery of an electric scooter fully.

Can You Charge a Dead Scooter Battery?

Depending on the battery, it may take up to 20 hours to fully recharge a dead scooter battery. Batteries that have lost only a fraction of their charge will take significantly less time than those lost most.

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