The wires are all red and black, red is connected to the positive electrode and black is connected to the negative electrode. There are many kinds of wiring in the market, some are expensive and some are affordable, but whether it is affordable or expensive, the quality is not necessarily good.
If you want to buy jumpers, you must buy copper ones. As we all know, the conductivity of copper is second only to silver, so the jumper needs to bear hundreds of amperes of current instantly, which is impossible without good materials. More importantly, from the safety point of view, the clamps of cables with a price of more than 100 yuan are covered and protected by all-soft rubber, which greatly reduces the possibility of electric shock for users.
Extended data:
Precautions:
1, the first two cars should be turned off. Don't forget to turn off the lights after the flameout. Many careless car owners don't look at the dashboard after the flameout. If the light is turned on for a long time, even a small light will make the battery dead all night. Usually, you should form good habits when driving, and walk around the car after getting off and before getting on.
2. After the charging is completed, remove the jumper cable in the reverse order of the connection. Check the battery regularly. If you think there is something wrong with your car battery, go to the 4S shop regularly to check how the battery stores electric energy.
3. Replace the battery with good quality. When the car battery is used for a long time and can no longer be used, replace it with a good quality battery.
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