A high-performance electric scooter charger ensures fast charging while preventing risks such as overheating or surges. Understanding how your charger works allows you to optimize its use and contribute to better battery longevity.
In this article, the Weebot team teaches you how to test a scooter charger. Follow the leader !
Why test the charger of your electric scooter?
Here are the reasons why it is necessary to test the charger of your electric scooter.
To prevent accidents
When you buy a new electric scooter charger, the testing moment is always stressful. We know that a faulty charger can pose significant risks such as short circuits, overheating, or even fires. Therefore, it is wiser to ensure its proper functioning to protect both the battery and the other components of the device.
Impact on the performance of the electric scooter
Modern chargers are equipped with innovative technologies such as the Battery Management System (BMS) that regulate charging cycles and prevent overcharging while optimizing the performance of the electric scooter battery. However, a malfunction in these systems can impact energy efficiency and deteriorate the lithium-ion cells.
Regular maintenance helps detect potential risks and reduces the need for replacement, which can cost between €100 and €400 depending on the model.
Steps to test the charger of your electric scooter
Before checking out, remember to examine every angle of your future electric scooter charger. Several details may give you a clue. Stay vigilant.
Cable and box testing
Check for frayed cables or exposed wires that can cause short circuits. Beware of worn or oxidized connectors which can reduce charging efficiency while increasing the risk of overheating.
To check electrical continuity, do not hesitate to test the power cables with a multimeter. It is possible to detect a break in the cable (internal short circuit) or too high resistance.
Finally, look for damage to the case (cracks or impacts), as this could alter the internal components of the charger, leading to potentially dangerous malfunctions.
Testing the “Charge indication LED” function
The charging indicator LED on your electric scooter charger informs you of the charging status and charger health. Different colors and flashes can have specific meanings that help you detect possible problems.
Common behaviors:
The colors
Stable green LED: Charging is complete, the battery is full or the charger is operating normally.
Stable red LED: The charger is charging the battery. If the LED stays red for a long time without turning green, this may indicate a problem with the battery or extremely slow charging.
The flashes
Flashing red LED: A problem is detected. This could mean a short circuit, overcharging the battery, or an incompatibility between the charger and the battery. It is recommended to immediately unplug the charger and check the condition of the components.
LED flashing green: Charging is in progress, but nearing completion. This indication generally indicates that the battery is reaching its maximum capacity.
LED off: If the LED does not light up at all when the charger is plugged in, this may indicate a fault in the charger, poor connection, or a power supply problem.
If in doubt, consult your charger's user manual, as some models may have specific lighting behaviors. A visual test of the LED can thus provide a first clue to the condition of the charger or battery, before carrying out more in-depth tests.
Measuring voltage and current with a multimeter
To measure the voltage, use a multimeter. Start by setting the device to measure voltage (V) and check that it is working correctly; more particularly its probes.
Let's move on to the test. With the charger plugged into an electrical outlet, insert the multimeter probes into the output connectors and note the displayed value. This must correspond to the values written on the charger label (for example 36V on the Xiaomi and Ninebot RCA charger).
To measure current (A), set the multimeter to direct current measurement. Then connect the device in series between the charger and the battery to ensure that the intensity meets the manufacturer's recommendations.
Finally, compare the results obtained with the technical data provided in the charger instructions. If significant deviations are detected, this may indicate a failure that requires special attention.
The main technical criteria for testing an electric scooter charger
Testing an electric scooter charger is based on precise technical criteria to guarantee its proper functioning and preserve the battery. Thermal management, connector compatibility or even energy efficiency: these checks ensure safety, performance and durability, while avoiding the risks linked to a faulty charger.
The thermal management test
For this first test, we will use a thermal camera to detect overheating risks. This test is crucial, as a scooter charger must be able to effectively dissipate the heat generated during use. The camera will then allow us to visualize the hot spots of the casing while charging.
If the temperature exceeds 60°C, it may indicate poor heat dissipation. A problem that could endanger the battery and reduce its lifespan.
In 2021, a series of chargers were recalled by their manufacturer because intense overheating led to numerous fires. This incident highlights the importance of rigorous thermal control before regular use.
Connector compatibility
To check the compatibility of the connectors, start by testing different standard models such as the GX16 or the XT60. This way, you can verify their adaptability to the charging port of your scooter.
During this step, pay attention when plugging and unplugging the connectors, and observe if there are electric arcs. The presence of arcing could indicate poor contact, requiring repair or replacement.
The GX16 connector is generally used for scooters like the Weebot Zephyr, while the XT60 is suitable for high-capacity models, such as the Dualtron Thunder. Perfect compatibility between the connector and the charging port ensures a secure connection, limiting the risks of malfunction and reducing premature wear of components.
Energy efficiency and charging time
The energy efficiency of a charger is determined by the formula:
Efficiency (%) = (Pout/Pin) × 100, where Pout is the output power and Pin is the input power.
Use a power meter to measure these values. For example, if a charger consumes 60 W (Pin) to provide 50 W (Pout), its efficiency is therefore 83%. Efficiency below 80% may indicate significant energy losses, causing increased power consumption in the long term.
Preventative charger maintenance
To extend the life of your scooter charger and avoid malfunctions, take care of it.
Simple, but effective actions
Start by cleaning the connectors with a soft cloth to remove dust and prevent corrosion. Make sure cables are not overstretched or exposed to prolonged bending, which could result in internal cuts. Also check the sockets for wear or signs of damage. These simple actions help maintain an efficient and secure charger over the long term.
FAQ
What is the average lifespan of an electric scooter charger?
With proper maintenance, an electric scooter charger can last between 2 and 5 years. It depends on the quality of the material and its use. To preserve its durability, avoid frequent overloading and store the charger in a dry, cool environment.
Can I use a fast charger on any electric scooter?
No, a fast charger is only compatible if the manufacturer authorizes it. Using an unsuitable charger may cause overheating or damage the battery cells. Manufacturers like Dualtron recommend specific chargers for their high-end electric scooters.
What are the signs of a faulty charger?
Symptoms of a faulty charger are:
● Absence of LED indication (or constant flashing red LED).
● Noticeable overheating during use.
● Absence of voltage measured with a multimeter, even when plugged in.
Conclusion
Regularly testing and maintaining your electric scooter charger is a simple process that ensures your safety and the durability of the equipment. A high-performance charger prevents unexpected breakdowns, protects against the risk of overheating and contributes to more economical and environmentally friendly use. By carrying out the various tests, you guarantee optimal performance of your scooter in the long term. If you have the slightest doubt, consult a professional or go to a specialized store. An expert on site will be able to advise you on the measures to take.