Is your electric scooter not working, or acting strange? Have you tried turning it off and then back on again? Try our easy guide for troubleshooting and repairing your scooter to see if you can fix the issue yourself. If the problem persists, it’s best to take your electric scooter to the repair shop.

Take a look at some of the most common problems of electric scooters, and a short guide how to check the components and repair or replace them.

Scooter Not Charging

1. Check the charger

Faulty charger may be the reason the battery doesn’t charge. To check if it is malfunctioning, plug charger into your electric scooter and power outlet. Most chargers have a green light and a red light. When the charger is plugged into the scooter and into the wall the red light indicates that the battery pack is charging, and the green light indicates that the charger is plugged into the wall. When the red light turns off and only the green light is on that indicates that the battery pack is charged and the vehicle is ready to use.

If the light stays green and there is no red light when the charger is plugged into the vehicle and into the wall this could be caused by many things. It could be from new batteries that have never been used and have a full charge, worn out batteries with low Voltage that need to be replaced, a loose wire or defective connector between the battery pack and charger port, a defective charger port or battery charger plug, a burned out fuse in the charger, or a defective battery charger.

electric scooter not charging

Use a multimeter to test the charger’s output voltage. Voltage should be a few volts above the rated voltage. If the output voltage is zero or below rated voltage, it means the charger is defective. You can also check the charger on another scooter.

2. Look for loose wires and connectors

If the charger is working, there may be some loos wires or faulty connectors between the battery and a charger port, or a charger port itself is defective. Open up the battery and bypass the charge port by testing the wires going to the charge port, pushing your multimeter leads through the insulation. If you see voltage then the charge port is broken. This was a common issue on Xiaomi M365, with the charging port cap falling off and leaving the port exposed to dust and dirt.

Motor Not Running

1. Check the fuse or the circuit breaker

If the scooter uses a fuse, look at the inside of the fuse to see if it is burned-out. Removed the fuse and hold it up to a source of light to determine if it is burned-out and replace it if it is. For scooters that use a circuit breaker, push-on or flip the circuit breaker to see if it will reset. If the fuse keeps blowing up, there is probably the issue with the wiring.

electric motor for scooter

2. Inspect the motor

Look for any burned or melted wires, wire connectors, or electrical components. If anything smells like burned plastic, or looks burnt, it’s defective and should be replaced. Pull and push on all of the individual wires and wire connectors to make sure they are not loose or disconnected.

Some e-scooters are equipped with a braking system that stops the motor from functioning while the brake is engaged. Check the scooter’s manual and disconnect the braking wire connector from the speed controller and check if the motor starts. If it does, then the braking lever wire needs to be replaced.

3. Check the battery

The battery is the powerhouse of a scooter, so if the motor is not getting enough Volts from the battery it won’t work properly, or it won’t work at all. If you have a multimeter, test the battery packs’ Voltage to determine its condition. A mutimeter, or a multitester, is a tool that can measure and display amps, volts and ohms of a power source.

Battery packs constitute of battery cells spot welded together. Sometimes, connections can break due to scooter vibrations, which breaks the circuit so there is no charge coming from a cell or a group of cells. Here is a great video on how to inspect and repair your battery pack.

4. BMS has failed

If some cells in your battery packs have died, the BMS (Battery Management System) will try to balance this out and it will eventually go dead. In this case you will need to replace your BMS with the one that has same specifications, but before that you will need to inspect your battery.

Scooter Runs Slowly

If your scooter is running slower than it used to, this also may be the battery issue. But before you start taking your ride apart, make sure that the batteries are fully charged before you test the speed.

Also, you will need to check what speed mode the scooter is set to. Some scooters have the Eco/ Beginner speed mode which limits the top speed.

If your scooter features pneumatic tires, check the tire pressure. If the air pressure is too low, tires will be soft, which will affect acceleration, top speed and range.

Some heavy-duty off-road scooters, have a chain drive, and if your e-scooter has one, make sure to check the chain and chain sprockets. The chain must be neither too loose nor too tight, and chain sprockets must be aligned.

Make sure to adjust the brakes too, as they sometimes stay in a semi-active position, which also makes the scooter go slow. You can test if the brakes are the issue by pushing the scooter while it’s off and feel whether the wheels spin freely or not.

If you have checked all of the above, it is probably the battery issue. Even the best batteries are not eternal, and in time they will need to be replaced. The typical estimated life of a Lithium-Ion battery is about two to three years or 300 to 500 charge cycles, whichever comes first. After that, you will need to replace your battery with a new one.  

How to fix electric scooter 1 Ride Two Wheels

Brakes Not Working

Brakes are an essential part of any moving device. There are different types of brakes on e-scooters, from drum and foot brakes that require little to no maintenance, to disc brakes that require adjusting from time to time.

1. Disc Brakes

If you hear a scraping sound coming from your brakes, or your scooter seems to be lagging, you brake pads need to be adjusted or callipers need to be realigned.

Brakes can also become loose over time. If you notice it take a long time to come to a complete stop, you will need to adjust the cable tension. You can do this by tightening the handbrake tension knob, and if you need more, you can also adjust the rear tension knob.

2. Electronic brakes

Some electric scooters, like the Unagi, have electronic brakes that are activated by a switch that shorts the terminals of the motor, creating resistance to motor rotation. If you notice that your electronic brake is not working, it is probably a wiring or a switch issue, so check for any loose parts or wiring.

What if something breaks or falls off?

The electric scooter market is very crowded, and companies are trying to make their scooters more appealing to the customers, for their looks, features or price. Sometimes, in order to keep the price low, some parts may not be the best quality, which means that tend to break faster. This is usually the case with a kickstand, different covers, plastic parts and more. If any part breaks off, contact the manufacturer, or whoever had issued a warranty to see if they can send you the replacement.

Electric Scooter Acting Crazy

We have been testing all kinds of electric scooters for years, and we have seen all kinds of crazy misbehaving. From suddenly speeding up and refusing to stop (where is Keany Reeves when you need him?), to stopping all of a sudden and catapulting the rider.

electric scooter speed

What to do if your scooter starts acting erratically? This is probably an issue with the electronics, which is not an easy thing to diagnose and repair. If you notice there is something unusual happening with your scooter, this may be a very specific problem, so look for similar experiences on the internet, or contact the manufacturer, or the distributor you got your scooter from.

What if you have just bought the scooter and it doesn’t work?

If you happen to have just gotten a scooter and it doesn’t work out of the box, or it broke down shortly after, we would definitely recommend that you contact the customer service. Most of the manufacturers offer some kind of warranty, and provided you did not do anything crazy, like trying to take your scooter swimming, you have the right to ask for a repair or even a replacement in some cases.

Have in mind that any warranty becomes invalid if the motor or battery pack is opened or modified by the customer.

How to prevent your electric scooter from breaking down?

In order for your scooter to work you need to do some preventative maintenance from time to time. Here are few things that you should keep in line.

Inspect your scooter before every ride: You don’t have to do a thorough inspection every time, but do a quick check of all essential parts, steering column, throttle and brake lever/switch, wheels and brakes.

Tighten any loose bolts and screws: All the moving parts in an electric scooter have some bolts and screws join different parts together. When you experience some vibration during use, it could be caused by losing bolts, screws, or some fasteners.

Pneumatic Tires: Keep the tires properly inflated. Take note of the manufacturer recommended pressure and keep it at that level. You can also use some kind of puncture protection/repair solution to prevent flats and extend the life of the tire.

Brakes: Keep rims and discs clean and straight. Replace worn brake shoes and pads promptly. Replace worn or frayed cables and housings.

Battery: Make sure you are properly using and charging your battery. Read this guide on how to properly charge and maintain your electric scooter battery.

Do not perform any maintenance when the power is on or the battery is charging. If you know absolutely nothing about electric scooter, or electric bikes maintenance, it is best to take your scooter to the repair shop.

Have in mind that any warranty becomes invalid if the motor or battery pack is opened or modified by the customer.