Electric Bike Charger Common Faults and Overhaul

1. When charging, the power indicator light is on and the charging indicator light is orange

First, please check whether the charger output plug of the electric bicycle and the charging plug of the battery box are inserted tightly. If there is no problem, check whether the fuse on the battery box is open or the fuse holder is loose and has bad contact.

In addition, some models can only be charged after opening the battery lock. If all the above faults are eliminated, consider whether the output line of the charger is open. Use a multimeter voltage file (200V file) to measure the no-load output voltage of the charger, which should be 41-44V (with 36V battery, different chargers are different) If not, it may be that the charger’s output line is open, turn on the charger, and change the output line to eliminate the fault.

 

Note: When replacing the output line of the charger, be sure to not reverse the positive and negative poles of the original machine.

 

8 common faults and overhaul of electric bicycle chargers

For electric bikes, an e-bike charger is an inconspicuous accessory. Compared to batteries and motors, which are prone to problems, e-bike chargers have far fewer faults. However, there are always a few friends who have trouble with their e-bike chargers.

If you encounter some charger problems, you may want to take a look at the following 8 “electric bike charger common failures”, may be helpful to you.

 

1、The power indicator light is on when charging and the charging indicator light is orange

 

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

 

In addition, some models require the battery lock to be opened before charging. If the above faults are ruled out, consider whether the charger output line is open, use a multimeter voltage file (200V file) to measure the charger’s no-load output voltage, should be 41-44V (with 36V batteries vary due to different chargers) If not, it may be the charger output line open, and the charger open, change an output line, you can remove the fault.

 

Note: When replacing the output line of the charger, be sure to pay attention to the positive and negative poles of the original machine do not connect the reverse.

 

2. 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 can be plugged into a normal power outlet, if the situation remains the same, the charger shell open, observe whether 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 fault of the power input line, should check the circuit board near the high voltage area components are not false soldering phenomenon In addition, an open circuit can also cause the above.

In addition, open circuit can also cause the above-mentioned failure, such as the machine fuse has been broken, then do not replace the fuse of the large amperage (charger fuse tube is generally 2A), should focus on checking whether its components are damaged, available with the same type of replacement.

 

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

 

This is mainly part of the user often carry with the car caused by the failure of some components loose. The main performance is: the voltage working state is not normal, heat is very large, serious when the charger shell deformation, circuit board scorching, resulting in voltage damage. You can re-solder the false solder. If the fault still cannot be ruled out, it is necessary to check whether there are components open circuit.

 

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 everything is normal, then to replace the charger to troubleshoot.

 

5、Heat generation, 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 caused. In addition, the components of the open circuit or false welding will also cause the above failure.

 

6, the output part of the copper foil burnt off

 

After opening the charger, the output part of the charger copper foil is found to be burnt, which is usually the result of reversing the positive and negative terminals of the battery, and the resulting fault will lead to damage to many components of the charger. If the charger fuse is not broken, then the broken copper foil can usually be replaced and connected back to normal. If the charger fuse is broken, the fault is more serious and it may be necessary to check and replace the damaged components one by one.

 

7. abnormal sound when working, power indicator and charging indicator dark and flashing

 

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

8. The output voltage is very high

 

The output voltage is very high (greater than 50V), and the cause of the fault is a short circuit or open circuit of a certain component. The pin voltage of the integrated circuit can be measured for specific judgment.

 

Note: After replacement, the output voltage of the charger should be re-measured with a multimeter. The normal value should be between 41-44V. If there is a deviation, the components must be adjusted to keep the output voltage of the charger normal.

 

If you are interested in motorized bike and want to know more, you could browse previous articles or visit our Official Website, also choose to leave your message below.  If you are interested in electric bike, you can contact us. zhebike.en.alibaba.com/

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