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What Are the Common Battery and Charging Problems in Adult Electric Scooters?

Electric scooters, though very simple in outlook, are a fun and practical way of getting around. Their battery-powered engine provides an eco-friendly yet efficient way of commuting for children and adults. 

However, we understand the novelty of owning a battery-powered scooter, so we intend to tackle the question, “What are the common battery and charging problems in adult electric scooters?” This article is to help you learn more about scooter batteries and charging!

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Battery Basics for Adult Electric Scooters

There's a lot to know about electric scooter batteries. But for now, let’s just look at the basic types and how to determine the scooter capacity and range of your adult electric scooter.

Three main types of batteries are used in adult electric scooters: lithium-ion, lead-acid, and nickel-metal hydride (NiMH).

Lithium-ion batteries are the most popular type of battery for electric scooters. They are lightweight, energy-dense, and have a long lifespan. However, they can be more expensive than other types of batteries.

Lead-acid batteries are less expensive than lithium-ion batteries but are also heavier and have a shorter lifespan.

NiMH batteries offer a good balance between price, weight, and lifespan. However, they are not as energy-dense as lithium-ion batteries, so they may not provide as much range.

The lithium-ion battery is the way to go if you want the best possible performance and range. However, you can use lead-acid or NiMH batteries on a budget.

Battery Capacity and Range

Battery capacity is measured in ampere-hours (Ah), and the higher the ampere-hour rating, the longer the battery will last. Range, on the other hand, is the distance that you can travel on a single charge. The Pegasus City Commuter Electric Scooter has an extensive range of more than 28 miles, partly due to the 48V Lithium-ion Battery with a 15.6 AH battery capacity. Similarly, the Varla Falcon could reach a range of 25 miles due to its 48V Lithium-ion Battery with a battery capacity of 10.4 Ah.

Some factors can affect your scooter range. These include:

Weight: The heavier you are, the less range you will get.

Terrain: Riding on rough terrain will use more battery power than riding on smooth pavement.

Wind: Riding against the wind will also use more battery power.

Temperature: Cold weather can reduce battery range.

Common Battery Problems in Adult Electric Scooters

Here are some battery problems that are associated with adult electric scooters.

Capacity Degradation

Capacity degradation is the natural decrease in battery capacity over time caused by some factors, including cycle count, depth of discharge, and temperature. Extreme temperatures, the battery percentage, and the number of charging and discharging times can damage the battery and accelerate capacity degradation.

Signs of capacity degradation: Reduced range: Your scooter cannot travel as far on a single charge. Slower charging: It will take longer to charge your scooter.
Performance issues: Your scooter may not be as powerful or responsive as it used to be.

Sudden Battery Failure

Sudden battery failure is a rare but serious problem that can happen for some reasons, including manufacturing defects, physical damage, and improper charging. 

Signs of sudden battery failure: your scooter will not turn on. The battery may smoke or catch fire. Knowing how to prevent battery fire is a necessity.

What to do if your battery fails suddenly:

  • 1. Stop riding immediately.
  • 2. Remove the battery from the scooter.
  • 3. Place the battery safely, away from heat and flammable materials.

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Charging Time and Efficiency

Charging time and efficiency can vary depending on the type of battery, the charger, and the ambient temperature.

Larger batteries take longer to charge, but charging with powerful chargers will be faster. Also, the cold weather can cause charging to take longer. Therefore, battery capacity, ambient temperature, and charger power can affect charging time.

Even though the charger quality will help maximize charging efficiency, healthy batteries will charge more efficiently than damaged or degraded batteries. Another factor affecting charging efficiency is improper charging practices, which can reduce charging efficiency.

How to improve charging time and efficiency:

  • 1. Use a good charger.
  • 2. Charge the battery in a cool, dry place.
  • 3. Avoid deep discharges.
  • 4. Avoid overcharging.

Common Charging Problems in Adult Electric Scooters

These are common charging problems reported concerning Adult Electric Scooters.

Charger Compatibility

Incompatible chargers can damage your scooter's battery and void the warranty. Ensure you use the charger with your scooter or a charger specifically designed for your battery type.

What to do if your battery fails suddenly?Ensure that the charger's voltage and amperage rating matches your scooter's battery's voltage and amperage rating.

Ensure the charger's model number is compatible with your scooter's battery.

Charging Malfunctions

Most charging malfunctions are often caused by faulty chargers, damaged charging ports, or scooter battery problems.

Symptoms of charging malfunctions:
  • 1. The scooter stops charging.
  • 2. It charges very slowly.
  • 3. It overheats while charging.
  • 4. The indicator light does not turn on when the charger is plugged.

If you experience these symptoms, stop charging your scooter immediately and contact a qualified technician.

To avoid damaging your scooter's battery, some things to avoid include charging your scooter overnight or in extreme temperatures and using damaged chargers. 

How to charge your scooter properly:
  • 1. Charge your scooter in a cool, dry place.
  • 2. Do not charge your scooter overnight.
  • 3. Unplug the charger when the battery is fully charged.
  • 4. Use a high-quality charger.

Mitigating and Addressing Battery and Charging Problems

The following guide is on how you can mitigate and address some of the battery and charging problems that are discussed earlier:

Battery Maintenance

Regular battery maintenance is essential for extending the lifespan of your scooter's battery. Here are a few tips:

  • 1. Keep your battery between 20% and 80% charged whenever possible.
  • 2. Store your battery in a cool, dry place.
  • 3. Avoid exposing your battery to extreme temperatures.
  • 4. Use a high-quality charger.
  • 5. Have your battery serviced regularly.

Most scooters have a battery indicator light that shows the current charge level. The Falcon Urban Commuting Electric Scooter has a display switch that shows your scooter’s working condition, including the current charge level. You can also use a multimeter to check the battery's voltage.

Charging Safety

It is important to charge your scooter safely to avoid damaging the battery. Here are a few tips:

  • 1. Charge your scooter in a cool, dry place.
  • 2. Do not charge your scooter in direct sunlight or extreme heat.
  • 3. Do not charge your scooter overnight.
  • 4. Unplug the charger when the battery is fully charged.
  • 5. Do not use a damaged charger.
  • 6. If you must charge your scooter in hot weather, try to find a shady spot.
  • 7. Avoid charging your scooter in direct sunlight.
  • 8. Take breaks while charging to allow the scooter to cool down.

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If you experience any battery or charging problems, seek professional assistance. A qualified technician can diagnose the problem and recommend a solution.

How to find a qualified technician?Varla’s help center is always available to help you address any challenge. Search for electric scooter technicians in your area. Ask your friends, family, or colleagues for recommendations.


By following the tips above, we can all help to keep your Varla Pegasus batteries running strong for years to come. And if yours is a Varla Falcon, it’s still good. Just ensure you ride safe, charge smart, and enjoy your scooters for many miles to come!

Related Product

Pegasus City Commuter Electric Scooter

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