1. Use two pure copper wires to connect the car battery with power and the car battery without power. Pay attention to the positive pole connected to the positive pole and the negative pole connected to the negative pole, and the connection should be firm.
2. The car with electricity starts first, puts it in neutral, lightly presses the accelerator, and is in the state of electricity generation. The car without electricity restarts.
If the car is not driven for a long time, will the battery be charged by starting the car in neutral?
Whether it is an automatic transmission or a manual transmission, prolonged parking will cause power supply problems. The specific state consists of two points: one is that the battery voltage is low and is not enough to keep the starter running; the other is that the power of the two beatseries is completely sold out. In case 1, a manual transmission car can be started with a trolley, but an automatic car cannot. When the battery is completely depleted, even a car with a manual transmission has no choice but to use electricity. I saw you were talking about the automatic transmission. When the battery of an automatic transmission car is not enough, can it start on a trolley like a manual transmission car? In fact, this cannot be done. Relying on a trolley to start is only suitable for cars with manual transmission. After the manual transmission is braked, the engine crankshaft, transmission and drive axle are firmly connected together. Rotating the motor may cause the wheels to rotate manually. The trolley starting principle is used when starting a hand trolley. The gear is in 3rd or 4th gear. The transmission ratio offirst gear is too high, close to 12. To put it simply, the engine turns 12 times and the wheels turn 1 time. The whole process works in reverse. In other words, when the car wheels turn once, the engine must turn 12 times. The engine revs so fast and there is too much damping, so the car can't move at all. On the other hand, if you press the 5th or 6th gear, the gear ratio is low and it is convenient to press, but the engine speed will not increase. If the valves overlap, air will leak when compressed and ignition requirements will not be met. be met. Therefore, manual cars usually push a direct gear ratio of 3rd or 4th gear, close to 1st gear! Of course, the above refers to the method when the battery voltage is low and cannot be started effectively. There is no need to lightcause a fire if the battery is completely discharged. In this case it will not be fully activated and the shopping cart will be useless. This method cannot be used with automatic transmissions. First of all, if the car is not moving, the hydraulic fluid is not under pressure, and the torque converter is not under pressure, nothing can be done. Even though you can remove the park shifter, you cannot take the shifter with you. In other words, the automatic transmission is only in neutral when the engine is off. When in neutral, the drive axle, transmission, and engine crankshaft are not connected, so it doesn't matter if the car starts. In fact, if the battery is in good condition, there is no problem parking two or three days in a row. However, the battery voltage of a car with automatic transmission is insufficient and can only be solved by putting itso under tension. The power-on method is very simple. As shown in the picture above, the red wire is connected to the positive wire and the black wire is connected to the negative wire. Be careful not to get stuck in the middle. When preparing to park for a long time, be sure to turn the front of the car outward so that it can be easily connected to the power supply. Second, if you park the car for a long time, you can remove the battery and charge it regularly, then install the battery when you use it one day. But that said, as long as the battery is in a stable state, it's stable. it doesn't matter if you park it for a month.
What to do if the car runs out of battery
CarWhen the car is not driven for a long time, starting the car in neutral will charge the battery, but the charge is only effective when the speed isgreater than 1,500 rpm.
Relevant knowledge:
1. The car battery loses about 1% of electricity each day if it is connected to the car and not removed, the car uses it to maintain the minimum current. (commonly called “sleep” current) for approximately 80 mA. If there is a burglar alarm, it will also consume a certain amount of energy. Typically, about 2-3% of battery power is consumed each day. p>
2. When the battery power is less than half, that is, when the voltage is lower than 13.4V, the battery fault light is on and it is difficult to start the car
4. it must be charged on time. You can charge it with a charger, or you can charge it at 1500 rpm pfor more than 60 minutes, then charge it at 1900 rpm or more for 60 minutes or more. fully charged.
1. Open the hood and check if the battery cell head is loose or corroded. When the car is moving, shocks can cause the battery terminals to loosen, sometimes causing the electrolyte to overflow, corroding the terminal clips and retaining frames, and producing a white or yellow-green paste near the battery terminals. battery cover. If this type of paste is produced at the contact point of the wire, it will produce large contact resistance and result in poor conductivity. These pastes are sulfates. You can use 60-80 degree warm water to rinse the battery head. After rinsing, wipe the pile head and remove the bolts on the mating surface and wipe them dry before tightening. It is recommended to apply a layer of butter or petroleum jelly to the surface to prevent further erosion.elementary.
2. Try again to see if the car can start. If it cannot start, the battery may be dead:
1. External starting battery or borrowed car wiring bridge starting method. this method does not matter. It can be used in manual and automatic transmission models. First open the front hoods of both cars, connect the negative pole of the jumper wire to the negative pole of your car and the other end to the negative pole of the other car. Also connect the positive terminal of the jumper wire to the positive terminal of your car and the other end to the positive terminal of the other vehicle. Then let the other person's car start the engine, step on the accelerator, then get in your car and try to start the engine. If the battery is really low, your car should start quickly. After starting, leave it on for 15 to 20 minutes to allow the generator to charge. After lighting the fire, first remove the positive terminal of the other party's car, then remove the wires from your car. Likewise, first remove the negative terminal from the other party's car, then remove the wire from yours.
2. For manual transmission models, the push start method can be used. For automatic transmission models, if the battery cannot be used to start, the only option is to call for outside help or even tow the vehicle.
3. Observe road conditions before pushing the cart. Try pushing the cart to a flat, open place. There are no other vehicles, pedestrians or other obstacles within 20 to 30 meters ahead. Going downhill will be much easier. When going uphill, no matter how competent the driver is, he can start even if he reverses. If you are a person plus modest, turn the front of the car and push it downhill, but be sure to pay attention to safety.
4. First, turn the key to the ignition position, depress the clutch, release the handbrake and shift into 2nd gear, preferably 3rd (first gear is too slow to start and 4th gear is is also). hard to push, even if you can't push the car), if you push the car in reverse, engage reverse gear, hold the clutch and start pushing the car when the car speed is a little more quick as one. normal walking speed, immediately release the clutch and press the accelerator. As soon as the car starts, the car begins to depress the clutch, shift into neutral and apply the handbrake. After starting, leave it on for 15-20 minutes to allow the generator to charge.
5. Use the car to tower the vehicle, find a strong traction rope and securely tie the front and rear tracks of the two vehicles. When starting, the tractor in front should slowly drag the defective vehicle behind while paying attention to driving safety. First, turn the key of the faulty vehicle to the ignition position, press the clutch, release the handbrake, shift gears. Shift into 1st or 2nd gear and slowly raise the vehicle. Engage the clutch, after the vehicle starts, press the clutch, put it in neutral and quickly ask the vehicle in front of you to stop, then apply the handbrake, remove the traction rope, park near from the side of the road and leave it on for 15 to 20 minutes to allow the generator to recharge.
6. Finally, it is recommended to go to a professional repair shop to check whether there are any problems with the car battery andother electrical equipment.
7. If possible, you can also purchase a car emergency starting power supply in case of an emergency.