Why Does My Fast Electric Scooter Cut Out When I Accelerate?

Jan 16, 2024 Reading time : 8 min

While most electric scooters are trouble-free, issues that must be fixed immediately can occasionally arise. One of the unforeseen occurrences you could experience as a fast electric scooter owner is having the power cut out immediately after accelerating to maximum speed. Unfortunately, few dual-motor electric scooter manufacturers offer maintenance advice, and those that do are often not as thorough.

If you are a beginner as a motorized scooter owner or just face troubles related to cut-out issues, the following information is very helpful for you.

Fast Electric Scooters: A Game-Changer for Commuting

Riding a 40 MPH fast electric scooter is difficult, as you move along like a penguin on wheels while remaining stationary. But it’s cool and significant to lessen our reliance on gas-guzzling vehicles. Electric scooters are another environmentally responsible option to cover relatively small distances without consuming fossil fuels if bicycles or electric bicycles aren’t your things. You don’t have to wait for public transportation; they’re lighter than bikes and fold up easily. You just have to board and depart.

In cases like this, where you require the best of the world, you can opt for the Varla Eagle One Pro, which can satisfy all your riding needs. The dual hub motor of 1000W x 2 maximizes the motor power for the optimum experience. The dual hydraulic brakes and the dual hydraulic suspension offer safety with an amazing speed of 45 MPH. The dual LED lights and dual charging ports are a bonus for the best riding experience. But, they can occasionally face many kinds of issues, which are discussed below with their solutions.

Electric Scooter

Battery Issues

The main factor behind your fast electric scooter cutting out is battery issues. Not many know how the battery and electric scooters for adults work; here is all you need to know about it.

How It Powers the Motor

Batteries for electric scooters for adults function by turning chemical energy that has been stored back into electrical energy, which drives the motor. A chemical reaction occurs in the battery cells when the cyclist accelerates because the motor absorbs power from the battery. The reaction creates an electrical charge and delivers it to the scooter’s motor to propel it. The battery must be recharged when it runs out of power to replenish its energy.

Common Issues with Batteries

  • Low Battery: When the power source gets close to the cut-off voltage for most electric scooters, you may experience a cutout. The cut-off voltage for the 60V variant is 45V. When you reach 47.5V, the cutout kicks in to help the rider prepare for the cutoff voltage. No matter how hard you try, you cannot accelerate past 15 miles per hour.
  • Dead Battery Management System: A vital component that keeps the battery from overcharging or undercharging and enables maximum battery performance is the Battery Management System (BMS). If the BMS fails, the battery could overcharge and overheat as a result. The battery could also wind up depleting so quickly. Undoubtedly, a dead BMS will continue to cause power outages.
  • Dead Battery: The most expensive part of a motor scooter is its battery, and most owners detest the idea of replacing it. If the power drains quickly, you might assume that the BMS is dead, but the problem could be with the battery. You might start by considering how long it has been sitting since you purchased it to determine if the battery is dead. An electric scooter battery typically lasts between two and three years. If your battery is in that age range and is depleting quickly, the cells are likely dead, resulting in a power outage whenever you ride.

Solutions for Battery Issues

  • Low Battery Solution: The cut-off voltage is one of the most crucial factors to consider after receiving your electric scooter. If you do this, you’ll be vigilant and aware of when you expect to run out of power. We advise you to always travel with your original chargers to resolve the low battery issue. If something unexpected happens, like joining a group ride, you may recharge your battery and have enough energy to continue enjoying your activity and return home without pushing your bicycle.
  • Dead Battery Management System Solution: There is no option but to replace the BMS after it fails. However, before assuming that your BMS may have failed, ensuring that all connections and wires are solid is worthwhile.
  • Dead Battery Solution: Investing in a new battery is the greatest solution for a dead one. To extend the battery’s lifespan, some scooter owners with electrical skills also swap out the cells for better ones, which is difficult for most riders. To make your work easier, you can purchase a scooter for adults with a swappable battery if you plan to purchase another one soon.

Motor Problems

Rust is one of the key causes of the majority of motor issues. One of the main causes of a rusty motor in a motor scooter is riding in the rain or on icy terrain. Most frequently, a rusted electric scooter motor will cause power to shut out as soon as you try to speed. The connections going to the motor may be faulty or loose, another issue you might experience with the motor.

Motor Problems Solutions

Cleaning a rusted motor of your all-terrain electric scooter with warm water and sodium bicarbonate solution is the easiest way to cure it. We included rust as one of the reasons a dual-motor electric scooter won’t turn on in our post on the subject. Therefore, a rusted motor will cause periodic power outages and prevent the electric scooter from turning on. You must first check for and tighten any loose connectors and cables to remedy any loose connections. Make sure to smell the area to see if any wires that could be damaged by overheating have melted.

Accelerator and Control Issues

Let’s have a look now at how the controller and accelerator manage and affect the performance of your motorized scooter:

How the Accelerator and Controller Work Together to Regulate the Speed of the Electric Scooter

In a motor scooter, the controller, also known as an electronic speed controller (ESC), acts as an electronic circuit that controls the motor’s speed. It controls and distributes the battery’s energy toward the motor.

By turning or depressing the throttle to a particular extent, a rider primarily communicates with the controller, which instructs the battery to release more power or reduce the quantity going to the engine. Additionally, if you apply the electronic brakes, the controllers will cut off the battery’s power supply to the motor, preventing it from running and thereby lowering the overall speed.  

Some Common Issues

If you’ve ever opened the deck on your electric scooter, you may have observed a tangle of cables coming from and going to the controller. When riding at full throttle, you may experience power loss if there are any loose connectors and wires. Driving on uneven road surfaces is one of the factors that could lead to loose connectors. When riding an e-scooter, bumps, and potholes are the two main culprits for causing the connectors to come loose quickly.

Solution for These Types of Issues

If you don’t mind getting your hands filthy, you may quickly solve this issue by opening the deck of your motor scooter and looking for any loose connectors or wires. Ensuring the connectors and cables are secure solves the issue of power cut-off and promotes the efficient operation of all the scooter’s electrical parts. You can also try using a screwdriver, electrical tape, an automatic wire peeling tool, and an X-Acto knife, among other things.  

These tools are necessary because the wires could be loose and damaged. If you discover any loose wires or connectors, properly reconnect them and cover them with electrical tape for increased strength. You can look for nearby electric scooter service providers to have the issue fixed if, for some reason, you are hesitant to complete the work yourself.

Dead Throttle

Electric Scooter

The most important part of an electric scooter’s throttle is when it accelerates. Ensure that the throttle isn’t working properly if the e-scooter stops moving while accelerating. If the throttle isn’t dead, it could have loose connectors leading to it, which, in the worst case, could prevent your display from functioning.

The best course of action if your electric scooter’s throttle isn’t working, is to properly inspect for any loose connections. Loose wires and connectors inhibit the best performance of the throttle; thus, identifying the root of the issue is advised. You can only replace the throttle if there are no weak connections. To prevent compatibility issues, purchasing the same throttle from the manufacturer is crucial.


All the issues leading to and resulting in the cut out of your fastest electric scooter can be solved with a little attention and maintenance. You can easily manage your electric scooter’s performance and riding experience by working on the abovementioned solutions. If you require an electric scooter with the least number of issues, head to Varla for the best range of 40 MPH of electric scooters for adults.

Alan Biles
Posted by
Alan Biles


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