What happened when the red light and green light of the charger flashed together?

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There should be something wrong with the charger. After the common current limiting resistor of the charger is burnt out, the traffic lights flash alternately when charging, and the charger fan does not turn. Changing the charger can not only solve the problem.

It should be noted that when replacing the charger, the positive and negative poles of the output line of the new charger and the old charger must be the same.

There are several reasons why the red light and green light of the charger flash together.

1, the red light of the charger is on, but it doesn't flash, and it is still on after charging all night. This situation indicates that the charger is charged. However, there are two reasons why the battery is not charged. One is the physical reasons such as the battery charging plug is broken and the line is faulty. The other is that the battery itself has been vulcanized, and the increase of internal resistance leads to no charging or feeding of the electric vehicle battery.

2. The red light of the charger keeps flashing. After charging for a long time, the red light does not flash and the green light does not shine. Either the green light of the charger is broken or the battery is overcharged and damaged. At this time, it is necessary to find the charger of the same model and verify it again to determine which one is broken.

3. The red light and green light of the charger flash, indicating that the battery has been useless for a while, and the battery has electricity, which may be all virtual electricity. All you have to do at this time is wait, and the green light will go out when the current comes up.

The green light of the charger is always on. The green light always indicates that the charging has sensed the current from the battery, but it has not been charged. There are three situations: the first is the wiring problem of the charger itself, which leads to the internal reception of error signals and the green light. The second is that the battery feed capacity becomes smaller but there is a weak current passing through, resulting in a green light.