How to charge the battery car correctly

How should electric vehicles be properly charged, why should electric vehicles be charged shallowly, and what is the hazard of charging electric vehicles for too long? How to grasp the correct charging time of electric vehicles... This series of questions are all of the riders need to know. Properly charging the electric car can avoid many faults, make it easy to get on the road, and maintain our car very well. The following I will talk about how to charge electric cars and how long the battery car charging time.

Part1

How to charge an electric car

1. How should an electric car be properly charged?

Mainly should grasp two principles: First, we must be shallow and diligent. Second, you can't overcharge. Note that the battery car is forbidden to store at a loss, which will seriously affect the service life. If the idle time is longer, the battery damage will be more serious. [How long is the battery life of electric vehicles?]

2. Why do you need to work hard?

Lead is formed during battery discharge, and lead sulfate is reduced to sulfuric acid and lead during charging. If it is deeply discharged or not charged in time, lead sulfate cannot be reduced, causing vulcanization of the plates. Therefore, it should be done every day, every day, not deep discharge.

3. What is the danger of charging time not too long?

If the charging time is too long, the water in the battery will be excessively consumed, and the vulcanization process of the electrode plate will be accelerated, and the capacity of the battery will gradually decrease due to lack of water until the battery is charged and discarded.

4. How to grasp the correct charging time?

The correct charging time is; after the green light is on, float for 1-2 hours, then turn off the power. The electric car charger has no overcharge protection function. Although the green light is on, but the power cannot be cut off, the battery is still charging, and the water in the battery is continuously decomposed and evaporated. The saying that "it is not full when it is full" is completely unreasonable.

5. What is the main reason for the short-lived battery?

Untimely charging and long charging time are the main reasons for short battery life.

Part2

What if the electric car does not charge?

1, the phenomenon of failure

1 First check whether the loop connection is in good condition, carefully check whether the socket and the plug have a "sparking" arcing phenomenon, and there is a wireless road damage disconnection.

2 Check the charger for damage, whether the charging parameters meet the requirements: that is, the initial charging current reaches 1.6-2.5A/only; the highest charging voltage reaches 14.8-14.9V/only, and the charging floating charging conversion current reaches 0.3-0.4A/only. The float voltage is 14.0-14.4V/only. [Electric vehicle charger fault repair]

3 Check if there is any dryness inside the battery, that is, if the battery is out of liquid.

4 Also check the presence of vulcanization in the plates. The irreversible sulfation of the plates can be judged by QN-1000 (generally, the discharge test is below 6V) and then tested by a volume tester. The discharge time is less than 50% of the specified capacity, which is generally irreversible sulfation. In addition, when charging, the voltage of the battery rises particularly fast, and some single-cell voltages are particularly high, which is much higher than the normal value; the voltage drops particularly rapidly during discharge, and the battery does not store electricity or stores little power. When the above situation occurs, it can be judged that the battery is irreversibly sulfated.

2. Troubleshooting and handling of faults

Connect all parts of the circuit firmly, and the charger must be replaced if it is not normal. The dry inside of the battery should be supplemented with pure water for pulse repair.

It is better to control the voltage of the three batteries in the group to be 13.4V/only. If the voltage difference between the batteries exceeds 0.3V, it will continue to cause vulcanization during use due to out of synchronization. Therefore, we must pay special attention to the problem of the battery assembly after repair (especially the user of the electric motor battery) must be replaced if it needs to be replaced!

Part3

How long does the battery car charge?

1. After buying a car (or replacing the battery), the battery should have about 80% of the power. When you get home, you should charge it. The time is 4 hours after the charger is turned on. This is three times.

2. After riding the electric bicycle every day, no matter 10-50km, the battery should be recharged, so that the battery is in a “full state” for a long time, and it will be charged on the same day. After using it for a few days, it will be refilled, and the plate will be vulcanized and the capacity will drop. . However, the charging time should not be too long, and it is better to use the charger one hour after the lamp is turned on. When charging, it is better to undercharge, and do not overcharge, otherwise the battery will be charged because of lack of water, bulging, swelling. Causes irreparable damage to the battery.

3. Do not allow water to enter the battery compartment to cause the battery in the housing to be connected.

4, once a month, fully discharged once a month (riding on the "under voltage" light), that is, long distance riding until the under voltage indicator flashes, the battery runs out, then recharges to restore the battery capacity, also let you know the current battery The capacity level, whether it needs maintenance protection, and then charge for 12 hours.

5. Conditional to the whole group of batteries in the monomer switch, over the warranty period of the battery (especially in the summer), every three or four months to each battery monomer supplement 3-4 ml of deionized water (pure water is also available).

6. Once you find that the charger does not turn green or turn green when you charge, be sure to check if the charger has a problem or lose water. [Electric car charger has always been a green or red light solution]

7. The discharge port and charging port of the whole battery should be kept clean at all times to prevent copper rust from appearing at the contact point, resulting in overheating and damage caused by poor contact.

8, as far as possible with the foot to start with the foot, do not load too much, accelerate the gentle. Do not get on the car and give it a power start.

A set of batteries can be used for more than 5 years with proper charging and normal maintenance. Many users only use 1-2 years to replace them, mainly caused by improper charging. Therefore, it is very important to master the correct charging method. Remember that the battery is not worn out, but is burnt.

Part4

How much does the battery car charge?

The battery of the battery car generally has a voltage of 36 volts and a capacity of 12 ampere hours. The battery power is 36 volts*12 amps = 432 watts. The motor power of the battery car is 180 watts, 240 watts, 350 watts, etc.; Charging current 2 amps, charging capacity 36 volts per hour * 2 amps * 1 hour = 72 watt hours = 0.072 kWh = 0.07 kWh, 6 hours sharing 0.07 degrees * 6 = 0.42 kWh, such as the loss of the charger 20 %, 0.6 degrees is required to charge the battery at a time. Since the charging current is different, the charging time is different, but the total charging power is about 0.6 degrees!

Basic calculation formula for electric vehicle electricity consumption

It is very simple to charge different electric vehicles with one electric charge. You can easily calculate them according to the identification of the charger:

Take the 48V/1.5A charger as an example. If it is charged for 10 hours, it will be 48*1.5*10=720, which is 0.72 kWh, and the RMB will be 4 cents. If the charging time is less, it will be less and very cheap.

Part5

Battery car battery maintenance

1. First of all, you can't overload and drive overweight. When you find that the meter is running low, you need to use human riding because deep discharge has a great loss on battery life.

2. Pay attention to the charging method. When the new battery is charged for the first time, the time must be long. Make sure that the power is sufficient. For lead-acid batteries, no matter how far the distance is, you should charge immediately after use. If you are charging, don't charge until the battery is completely exhausted. If the car is not used for a long time, you must also replenish it once a month. This protects the battery and extends its life.

3, the characteristics of timely charging lead-acid batteries should be fully charged, do not wait for the battery to recharge, this will speed up the vulcanization of the battery plate, so that the battery capacity is quickly reduced, life is shortened.

4. Replenishing the liquid battery in time is to generate electricity by a certain concentration of sulfuric acid solution and lead chemical reaction. Once the liquid is insufficient, the battery will quickly become hot and damaged during use. Therefore, it is essential to replenish the liquid in time.

5, try to avoid sudden braking, slow acceleration. Try to keep the medium-speed driving at the medium speed and save the most power, and the impact on the battery is minimal. The new battery can travel for about 60 kilometers at a speed of no more than 15 km/h. If it is at 25 km, the speed can only travel for about 45 km.

6. Do not use the motor to start the car directly in the static state. It is best to use the foot to assist the start. When driving on the bridge, uphill, or against the wind, be sure to use the pedal boost to avoid impact damage to the battery, affecting the battery's continued mileage and service life.

7. Do not suddenly accelerate greatly during driving. Suddenly large acceleration means that the battery discharges with high current, which not only damages the battery plate, but also makes the battery capacity drop rapidly, shortens the service life, and it is easy to burn the key switch (commonly known as silk tail) switch contacts.

The page contains the contents of the machine translation.