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Does your child have an electric scooter? Advice to avoid incidences with the batteries

¿Tiene tu hijo un patinete eléctrico? Consejos para evitar 'incidencias' con las baterías

05/05/2021

Electric scooters explode more often than we think. Correct handling and not manipulating it are key to prevent this from happening. Hence, it is important that an adult charges the electric scooter and the task is not delegated to children. The study 'Crash-tests with electric scooters and risks associated with the charging process: recommendations for safe use', carried out by Fundación MAPFRE, in collaboration with CESVIMAP, the battery is the element that can cause the most problems in a PMV, especially during charging.

In order to carry out this research, many electric scooter fires were analyzed. After further investigation, it has been observed that most of these events were caused by a battery problem which, in most cases, started while charging. As a result, this sometimes caused an explosion.  

The BMS (Battery Management System) is key to avoid this, as it controls the connection and disconnection process; it is arguably the most important component responsible for the electrical safety of the scooter. If the scooter did not have a BMS, fires could occur during charging, because in case of power surges the BMS prevents this from affecting the battery cells.

To avoid overheating and short circuits, it is important not to tamper with the speed controller or power. However, unofficial apps that override the PMV controllers are proliferating, as well as how-to videos showing how to manipulate the batteries and control modules. If we want to ensure the safety of electric scooters and avoid them catching fire, it is important not to manipulate the scooter under any circumstances for this purpose. 

TIPS TO AVOID BATTERY INCIDENTS

-The task of charging must be done by an adult. 

-As mentioned above, do not tamper with the speed controller or power. The scooter should only be handled by expert and professional personnel, preferably authorized by the brand itself. 

-Do not charge the scooter when it is wet. It is also not advisable to do so after a blow that has affected the battery area.

-The electric scooter should not be charged overnight, as it will be unattended and we will not be aware of any problems. 

-The charger used must be the one recommended by the manufacturer. These elements are able to withstand high temperatures produced during charging, and protect against fire.

-It is advisable to charge in places clear of flammable objects or objects that can burn easily so that, in the event of a fire, the fire does not spread throughout the house. 

-Avoid leaving the PMV charging once it has reached its maximum charge level, as the charger reaches a very high temperature while plugged in.

-Although the PMV is IP protected, do not clean the scooter with pressurized water and try not to charge the scooter if it is wet or damp.

-None of our scooter's elements should be replaced by elements of a lower quality, as they may lack safety measures, for example, cells without individual protection.

-It should be noted that the most important component responsible for electrical safety on our scooter is the BMS. If the scooter does not have a BMS, fires could occur during charging, because in the event of a power surge the BMS is what prevents this from affecting the battery cells.

-In the event of a fire, and before the explosion of a celldue to an increase in the pressure and temperature, a lot of smoke will appear. Smoke warns us that our battery is about to explode.

-To prevent the fire spreading, it is important that the scooter has fireproof elements to protect the battery area.

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