< br >
1, the electric vehicle is caused by deep loss of power, it is recommended that you charge for 12 hours continuously. If it doesn't work, use the same voltage 20AH charger to activate it.
< br >
2. When the charger is connected to the power supply and not plugged into the battery, it starts to flash, which is the fault of the charger itself, and it will go to the after-sales service to replace it (it is free within a year).
< br >
Electric vehicle charger light flashing maintenance inspection method:
< br >
1, power test machine, measured output voltage is very low and unstable;
< br >
2, test the mains rectifier output +300V normal, test the power chip KA3842 7 pin voltage fluctuation;
< br >
3. Observe that the resistance-capacitance element has no obvious damage, the copper foil solder joint is intact, check the external starting resistance value of 75kΩ+75kΩ is normal, and the filter capacitance of 100μF\/50V is good;
< br >
4, then test the feedback branch rectifier diode FR157, the current limiting resistance 20Ω is also normal, in the road test pulse transformer a winding is not through, with a tin soldering iron to unsolder the transformer, careful inspection found that a winding is not through;
< br >
5. Compared with the line, it is the maintenance power supply winding. Connect the wire and apply AB adhesive seal, installed test, measured output voltage 55V (no load), ⑦ pin +14.5V stable.
1, the charger voltage is too low, if the charger welding point contact is poor, it will lead to the charger voltage is too low, and cause the electric vehicle charging insufficient, resulting in a charging green light flashing. For this problem, the general solution is to replace the new charger, which can solve the problem of the green light flashing on the charge of the electric vehicle.
< br >
< br >
2, electric vehicle battery aging, electric vehicle batteries have a certain number of charges and discharges, if the use of time exceeds the number of years, there will often be battery aging. In this way, there will often be a flashing green light on a charge. If this happens, you can usually only choose to replace the new battery to solve the problem of flashing green light on a charge of an electric vehicle.
< br >
< br >
3, the charger interface is loose, it can not be connected to the power supply, there will be a flashing green light of electric vehicle charging. In this case, generally only need to check the interface, reconnect can be solved, is very convenient.