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Electric car charger common failures do you understand

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Electric car charger common failures do you understand

For a battery to last long, it must have a good quality charger. A poor quality charger can lead to undercharging or overcharging, which can kill the battery. Undercharging will cause the lead sulfate crystals to become larger, causing the lead plate to sulfide and shortening the battery's life. Overcharging the charger will lead to the increased internal resistance of the battery and battery drum, leading to spontaneous combustion of the electric bike charging, resulting in fire. For electric vehicles, an electric bike charger is an inconspicuous accessory. Still, once the charger failure is also more trouble, I summarize 7 "electric bike charger common failures" that may be helpful to you.

1, power indicator light, charging indicator orange


  First of all, please check the electric bicycle charger output plug and the battery box charging plug is not tight. If you are sure there is no problem, you can check whether the fuse above the battery box has an open circuit or fuse holder loose contact poor phenomenon.


  2, abnormal sound when working, power indicator and charging indicator dark and flashing


  The cause of the failure is component damage, which can replace the damaged components and make the charger output voltage in the normal operating range.


  3, the output voltage is very high


  The output voltage is very high (greater than 50V), the cause of failure is a component short circuit or open circuit, the specific judgment can be measured when the integrated circuit foot voltage.


48V 200A Double connectors lithium battery charger.jpg


  4, the output voltage is normal, but the charging current is very small


  When encountering this situation, you should check whether the voltage components have poor contact or damage. If all is normal, then replace the charger to troubleshoot.


  5, heat, and accompanied by abnormal sound, charging can not be charged


  The cause of the failure is the output level of the elimination of vibration resistive capacitance damage. In addition, the components of the open circuit or deficiency soldering will also cause the above failure.


  6, the power indicator does not light up, the charging indicator does not light up


  Check whether the charger input power plug is connected, the charger input plug into a normal power outlet, if the situation remains, the charger shell open, observe the fuse connection is intact, there is no break, such as no break, first check whether the power input line is good, after excluding the power input line failure, should check the circuit board near the high-voltage components are not false welding phenomenon...


540v on Board Battery Charger .jpg


  In addition, the open circuit can also cause the above-mentioned failure, such as the machine fuse has been broken, then never replace the large amperage of the fuse, should focus on checking whether its components are damaged, available with the same type of replacement.


  7, serious heat, and even have the shell burned deformation image


  This is a main part of the user often carry with the car cause of the failure of some components lose. The main manifestations are: voltage working state is not normal, heat is very large, in serious cases the charger shell deformation, circuit board scorching, resulting in voltage damage. It can be re-welded at the false welding. If you still can not troubleshoot, you need to check whether there are components open circuit.


Pub Time : 2022-09-20 09:41:17 >> News list
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