I have an accident where the battery of my car runs out, and I want to buy a spare battery to put at

It seems that your battery is out of power, rinse the battery with boiling water to clean it, and pay attention to whether the battery water is enough, hurry up and flush it.

Don't buy a battery (if you must buy it, just buy the same one you use in the car).

I'll tell you a good way, I've been using, it's called: car multi-function emergency power supply large-capacity starting power pump , (you just search for its full name on **). You'll know how wonderful it is.

Listen to me.

Since you have a car, you can't do without a 12-volt charger of about 15 amps, buy one, and rush at night in about 20 days.

After you have these 2 things, you will no longer have trouble, and the battery in your car will never lose power again.

I don't think buying a battery is the root of the problem, I don't know if your car is a regular loss of voltage, or once in a while, if it is a regular loss of electricity, then there are three points, one is to check whether the battery is normal, the second is to check whether the generator voltage is normal, the third is to check whether there is a short circuit in the car circuit, if they are ruled out, I think there will be no problem,. "In one is the driving habit, be sure to turn off the headlights after turning off the engine. 》 My car hasn't been charged to the battery for several years.

Oh, then I don't think it's necessary to buy, because the batteries have a life, even if you don't use it, you have to charge the battery regularly every month, it's very troublesome, and you should pay attention to it in the future. . .

Car batteries18% of life is not available. There are also 18% of automotive battery tests that are short-lived and need to be replaced immediately. The remaining 18% of the car battery must be replaced, and it needs to be judged according to the age of the battery.

Car batteriesThe lifespan is about 3-5 years, and when the service life is reached, it also needs to be considered for replacement.

The battery is a very important part of the car, when the engine is not started, the battery supplies power to the electronic equipment of the whole car, and the battery is also responsible for starting the engine, and the engine cannot be started without the battery. After starting the engine, the engine will drive the generator to run, at this time, the generator search cover can supply power to the electronic equipment of the whole car, and the generator can also charge the battery.

1. When the ammeter.

When the pointer shows that the power is insufficient, it should be charged in time. Sometimes on the road found that the power is not enough, and the engine can not be started, as a temporary measure, you can ask for help from other vehicles, the battery on the cell vehicle to start the vehicle, the negative and negative electrodes of the two batteries are connected, and the positive electrode and the positive electrode are connected.

2. In the loss of electrolyte.

Distilled water should be supplemented.

or specialized rehydration fluids. Do not drink purified water instead. Because pure water contains a variety of microelements.

It will have a negative effect on the battery.

3. When starting the car, the uninterrupted use of the starter will cause the battery to be damaged due to the discharge of the travel party. The correct method of using coercion is not more than 5 seconds for each start time, and the interval between restarts is not less than 15 seconds.

There are also 18% of automotive battery tests that are short-lived and need to be replaced immediately.

The size of the capacity directly affects the maximum current of the output and the working duration, that is, a large capacity battery can release a larger current value, or the same load can continue to work for a longer time.

Bigger is not always better. As long as the voltage of the large-capacity battery is stable, there is no exceedance, and the capacity is large, it will not affect the electrical equipment, but it will affect the battery life, and the car battery capacity is too large or too small.

If the battery is too small, it may not provide enough current to start the car engine, or the battery will run out of power after starting it several times in a row.

The capacity of the battery is expressed as:

Capacity (Ah) = Current (A) x Discharge Time (H).

What does a battery do?

1. When the engine starts, supply power to the main electrical equipment such as the starter and ignition system.

2. When the engine is not running or running at low speed, the battery supplies power to various electrical equipment.

3. When there are too many electrical equipment and the power consumption exceeds the power supply capacity of the generator, the battery assists the generator to supply power to various electrical equipment.

4. The role of stabilizing voltage. The battery is equivalent to a large capacitor, which can absorb the instantaneous overvoltage in the circuit to protect the electrical equipment.

The electrolyte in the battery is less active at low temperatures than at high temperatures, and the resistance is high, so the storage capacity at low temperatures is relatively poor. In other words, the same charging time for the battery will require less power at low temperatures than at high temperatures, which is why it is more difficult for us to start the car in winter. Of course, new batteries rarely have such problems, and they are generally only found in batteries that have been used for 3 years or more.

Electric vehicle battery: the motor determines the speed, and the capacity determines the time.

Car battery: the capacity is too small, and it is difficult to start.

The size of the capacity has no effect on the car.