It used to be two red lights in one charge, but now it s one on

There are many styles of charger indicator displays for electric vehicles:

1. The charger is always red when charging, and turns to green when it is fully charged;

2. The charger is red and flashing when charging, and turns green when it is fully charged;

3. When the charger is charging, the red and green lights are flashing alternately, and the red lights and green lights are on when the battery is fully charged.

4. When the charger is charging, two red lights are always on, and one red light and one green light are on after full charge.

If it can be charged, it means that it is a normal phenomenon, if it cannot be charged, you can go to the repair shop to test it to see if the charger can work normally, instead of judging the quality of the charger by the charging indicator. Determine the output voltage of the charger, adjust the multimeter to the 200V gear, and then connect the charger to the market power, measure the output end of the charger with the multimeter to see if the voltage is correct, the general no-load voltage is the floating charge voltage, such as the 48V charger, at this time the voltage should be normal around the left.

To determine the charging current and the current of the turning lamp, adjust the hand of the multimeter to the current gear and connect it in series with the battery pack to test the maximum charging current and the current of the turning lamp.

The logo of the full charge of the lead-acid power battery used in electric vehicles is generally subject to the green light. But in fact, it is not the case, the charging time should be avoided too long, the charging time shall not exceed 10 hours in principle, whether the battery is fully charged is measured by the amount of charge is the most accurate, and the general charging amount is times the discharge amount.

1.The refrigerator is not refrigerated normally, and the detection circuit of the motherboard finds that the freezing compartment is cooled abnormally (not frosty) and sends out an alarm; It can be self-checked, (the thermostat adjusts the low temperature point). Check to see if the frost in the refrigerator and freezer compartment is normal.

Electric car charger, red light and green light turn on together when powered on:

1.The charger resistor is broken, and it can't be converted normally, so change the resistor.

2.Under normal circumstances, the red light charges normally, and the green light indicates that the battery is fully charged.

3.The contact between the charger and the socket is not good, and the charger output cable is broken.

4.Or maybe one of the wires connecting the socket to the battery is missing.

The EV charger has two indicators, one is the power indicator, and there is only a red light. The other is the charging status indicator, which is red when charging and turns green when charging is over.

When the EV charger is charging, two red lights are on at the same time, one red light indicates that it is charging, and the other red light indicates the power light. When both red lights are on, it means charging.

There are three indicators for the electric vehicle charger, one indicates the power light, one indicates that it is charging, and the other indicates that it is fully charged (green light), the power indicator is always on, and the charging indicator is a red light when it is charging, and it turns to a green light when it is full.

An electric car charger is a charging device specially configured for the battery of an electric bicycle! Classification of chargers:

With and without power frequency (50 Hz) transformers can be divided into two categories. Freight three-wheel chargers generally use chargers with power frequency transformers, which are large in size, heavy in weight and consume electricity, but reliable and cheap; Electric bicycles and electric motorcycles use so-called switching power chargers, which are power-saving and efficient, but they are easy to break.

Electric bicycle chargers mostly use switching power supplies, although there are many models, but the circuit structure is similar, the main difference is that the selected pulse width modulation (PWM) chips are different, such as (UC3845, UC3842, SG3524, TL494). Commonly used electric vehicle chargers can be roughly divided into two types according to the circuit structure. The control chip of the first charger is generally based on TL494 as the core, pushing two 13007 high-voltage transistors.

With LM324 (4 operational amplifiers), three-stage charging is realized. There is also a single-tube switching power supply that uses UC3842 to drive the MOSFET, and cooperates with LM358 dual op amps to achieve a three-stage charging mode.

Summary. Hello kiss. Here's how to turn on the charger with the green light and red light:

1. The converter of the charger is damaged and cannot be converted and charged, replace the charger resistor. 2.The battery is open and welded, and it is checked with a multimeter.

3.The charger insurance burns out, replace the charger. 4. If the power cord and the battery socket fall off and the contact is poor, check and replace.

Detection method:1Check that the output plug of the charger is tightly plugged into the charging plug of the battery case.

2. Check whether the fuse tube of the battery box is open or the fuse holder is loose and has poor contact. 3. Check whether the charger input power plug is well connected to the mains. 4. Check whether the sub-components are loose.

The main performance is that when C18 is loose and soldered, it will cause V.

Hello kiss. The method of turning on the green light and red light of the charger together is as follows: 1. The converter of the charger is damaged and cannot be converted and charged, and the charger resistor is replaced.

2.The battery is open and welded, and it is checked with a multimeter. 3.

The charger insurance burns out, replace the charger. 4. If the power cord and the battery socket fall off and the contact is poor, check and replace. Detection Method:

1.Check that the output plug of the charger is tightly plugged into the charging plug of the battery case. 2. Check whether the fuse tube of the battery box is open or the fuse holder is loose and has poor contact.

3. Check whether the charger input power plug is well connected to the mains. 4. Check whether the sub-components are loose. The main manifestations are:

When C18 is loose and soldered, it will cause V.

The reasons why the charger green light and red light light are on together are as follows: 1. The charger resistor is broken, and it cannot be converted normally, so change the resistor. 2. Under normal circumstances, the red light charges normally, and the green light indicates that the battery is full.

3. The contact between the charger and the socket is not good, and the output line of the charger is broken4, or the wire connecting the socket and the battery is missing. The probability of this charger being broken is relatively large, but now it is generally not repaired, once there is a problem, this is directly replaced.

The resistors are basically cylindrical, and the volume varies according to the power size. There are many shapes of diodes, according to the performance, the production materials are metal, glass, the shape is also different, the largest one I have used in terms of volume is larger than a fist, and the smallest is less than half the size of a grain of rice!

Summary. Dear, hello, I'm glad to answer for you, the charger green light and red light are lit together Reason: 1. The charger resistance is broken, and it can't be converted normally, so change the resistor.

2. Under normal circumstances, the red light charges normally, and the green light indicates that the battery is full. 3. Because the battery backflushes to the charger, there is a capacitor in the charger for power storage. 4. If there is no short circuit in the output line, it means that your battery is over-discharged, the voltage is too low, and it is detected as a short circuit by the charger.

Dear, hello, I'm glad to answer for you, the charger green light and red light are lit together Reason: 1. The charger resistance is broken, and it can't be converted normally, so change the resistor. 2. Under normal circumstances, the red light charges normally, and the green light indicates that the battery is full.

3. Because the battery backflushes to the charger, there is a capacitor in the charger for power storage. 4. If there is no short circuit in the output line, it means that your battery is over-discharged, the voltage is too low, and it is detected as a short circuit by the charger. The green light strobe is short circuit protection.

The charger does not turn red when the green light is charging.

Hello dear, I'm glad to answer for you, it's normal for the green light to be charging when charging.

The first thing to do is to see what the two lights are. If one is a power indicator, then, as long as you connect the charger to the battery's socket, after that, this light will be on.

If the other light is a charging indicator, then as long as you charge the electric car, then this light will also be on, so it is normal for both lights to be on at the same time.

The key thing to figure out is what these lights mean and when they will come on. If it's normal when it's on, you don't have to worry about it. If it is not normal, you can consider repairing or replacing the charger.

This is very normal, a person's power indicator, one is the charging indicator, if it is full, the charging indicator will turn green, and the power indicator is still red.