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Electric scooter exploded! Why did it last for over 20 minutes and reignite twice?

Introduction:

The importance of batteries to electric vehicles is similar to the relationship between engines and cars. If there is a problem with the battery of an electric vehicle, the battery will be less durable and the range will be insufficient. In severe cases, it may even endanger the life safety of the car owner.

Real case:

There was an electric vehicle explosion accident on a section of road before! At that time, the electric scooter was driving normally, but the explosion happened without any warning. The driver reacted quickly and jumped off the car as soon as it caught fire. But the person in the back seat was unlucky and got burned. Fortunately, the traffic police arrived in time to control the fire and took the burned individuals to the hospital.

In addition to the surprising explosion of electric vehicles, there is another issue that cannot be ignored, which is that the fire of electric vehicles reignited twice after being extinguished by fire extinguishers! The fire lasted for more than 20 minutes until the electric vehicle was burned to ashes before it was completely extinguished.

Later, through investigation, it was discovered that the electric vehicle batteries ridden by these two individuals had serious quality issues. I knew there was a problem with the battery before, but I didn't take it to heart and didn't go to the repair station for inspection and repair. And the battery of this car does not have power-off protection equipment. Encountering a short circuit or fire source can easily lead to an explosion, with an extremely low safety factor. Otherwise, the fire will not reignite again after being extinguished!

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Smart Choice with High Cost Performance - Battery Repair

Data shows that 80% of electric vehicle fires are caused by battery failures, and 75% of these accidents were preceded by warning signals such as shortened range and overheating during charging.

Most car owners believe that 'batteries can only be replaced and cannot be repaired', allowing problems such as vulcanization and dehydration to worsen; Seeking cheap and inferior batteries, or neglecting regular maintenance, ultimately results in higher costs.

The replacement cost of a 48V20AH lithium battery pack is relatively high, and the professional maintenance cost is only 30% -50% of the replacement cost. Taking Heltec 20 Channels Charge Discharge Capacity Test and Repair Machine as an example:

Repair effect: After pulse repair, the capacity of over 90% of sulfurized batteries can be restored to over 85% of that of new batteries;

Economy: For a three-year-old electric vehicle, if you spend 200 yuan on maintenance every year, it can extend the battery life by 1-2 years and directly save more than 1000 replacement costs.

Reminder for the golden period of maintenance:

Immediate repair can avoid scrapping when the following symptoms occur:

✅ After being fully charged, the subsequent flight time is shortened by over 30%

✅ The battery heats up and bulges during charging

✅ The voltage drops significantly when standing still

Intelligent detection+customized repair: Refusing "one size fits all" repairs

Capacity layering detection with 20 independent modules simultaneously detects and accurately locates lagging batteries (error ≤ 0.5V).

Charging and discharging cycles: After multiple cycles of battery charging and discharging repairs, it is ensured that the repaired battery meets over 90% of the design capacity.

Each channel is equipped with a dedicated processor to ensure perfect capacity calculation, timing, voltage and current control.

Full channel isolation test, can directly test the whole battery cell.

Single 5V/10A charge/discharge power.

Fully compatible with lithium iron phosphate, lithium ternary, lithium cobaltate, NiMH, NiCd and other types of batteries.

18650, 26650 LiFePO4, No.5 Ni-MH batteries, pouch batteries, prismatic batteries, single large batteries and other battery connections.

Independent air ducts for heat sources, temperature-controlled speed-controlled fans.

Cell test probe height adjustable, scale scale for easy leveling.

Operation detection status, grouping status, alarm status LED indication.

PC online device testing, detailed and rich test settings and results.

 20 Channels Charge Discharge Capacity Test and Repair Machine with CC constant current discharge, CP constant power discharge, CR constant resistance discharge, CC constant current charge, CV constant voltage charge, CCCV constant current and constant voltage charge, shelving and other test steps can be called.

Customizable charging or discharging parameters; e.g. charging voltage.

 20 Channels Charge Discharge Capacity Test and Repair Machine with work-step jumping capability.

Can implement the grouping function, test results are grouped according to custom criteria and marked on the device to display the function.

With test process data recording function.

Final Reminder to Car Owners

The most expensive misconception is to wait until the battery is completely broken before replacing it. Just like cars require regular maintenance, electric vehicle batteries may experience issues such as battery imbalance and plate vulcanization after 10-12 months of use. Spending a small amount of money on repairs at this moment is better than spending a lot of money on replacements - and more importantly, avoid letting family members ride in vehicles with hidden dangers. If you are interested in our battery repair equipment, please contact us. We also have multiple models to choose from, which are suitable for your battery

Jacqueline: jacqueline@heltec-bms.com / +86 185 8375 6538

Nancy: nancy@heltec-bms.com / +86 184 8223 7713


Post time: Jun-20-2025