If you want to use a battery for a long time, you must have a good quality charger. Inferior chargers will cause undercharge or overcharge, which will kill the battery. Insufficient charging will cause the lead sulfate crystals to become larger, vulcanize the lead plate, and shorten the battery life. Overcharging of the charger causes the internal resistance of the battery to increase, the battery swells, and even causes the electric vehicle to charge spontaneously and cause a fire. For electric vehicles, the electric bicycle charger is an inconspicuous accessory, but once the charger fails, it is more troublesome. The editor summarizes 7 "common faults of electric vehicle chargers", which may be helpful to you.
1. 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.
2. There are abnormal noises during work, and the power indicator and charging indicator are dark and flashing
The cause of the failure is that the components are damaged. The damaged components can be replaced and the output voltage of the charger is within the normal working range.
3. 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.
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, replace the charger to troubleshoot.
5. The heat is large, accompanied by abnormal noises, and cannot be charged
The cause of the fault is the damage of the output stage vibration absorbing resistance and capacitance. In addition, open circuits or virtual soldering of components can also cause the above-mentioned failures.
6. The power indicator light does not light up, and the charging indicator light does not light up
Check whether the charger input power plug is well connected. You can plug the charger input plug into a normal power socket. If the situation persists, open the charger shell and observe whether the fuse connection in the machine is intact and whether there is a disconnection, if there is no disconnection. , First check whether the power input line is in good condition. After troubleshooting the power input line, check whether the components near the high voltage area on the circuit board are soldered.
In addition, an open circuit can also cause the above-mentioned faults. If the fuse in the machine is broken, never replace the Da Abe fuse. Check whether its components are damaged or not, and replace them with the same type.
7. Severe heat, and even the outer shell is burnt and deformed
This is mainly caused by the loosening of some components caused by some users often carrying them with the car. The main manifestations are: abnormal voltage working state, large heat, serious deformation of the charger shell, scorching of the circuit board, and damage to the voltage. The virtual weld can be re-welded. If the fault still cannot be eliminated, check whether any components are open.
Chargers should pay attention to their safe use. There are many fire accidents in chargers every year, so we should pay attention to its characteristics for electric car chargers. And you need an electric car charger to find Yisai Electronics. The switching power supply technology advanced by Yisai Electronics has the characteristics of small size, light weight, high efficiency and energy saving. The chargers are all made of aluminum alloy shell, with beautiful and generous design, stable quality, durable, fully intelligent control, easy to use, energy saving and environmental protection.