How to Recharge a Car Battery?
2 Answers
Recharge the car battery using a charger or another car. When connecting the power, the two vehicles should be positioned close to each other, and it is crucial to correctly identify the positive and negative terminals of the other car's battery. Use the insulated end to connect the power cables. The other vehicle should not be turned off. Try to start your own car. If it doesn't start easily, have the other vehicle rev the engine to increase the battery's power output. Precautions for recharging a car battery are as follows: 1. Before each summer, it is recommended to inspect high-voltage components such as the power battery at least once. 2. When washing the vehicle, avoid high-voltage components like the power battery to prevent adverse effects from contact with water. 3. If the road water depth is ≤35cm, drive through at a speed ≤10km/h. If the road water depth exceeds 35cm, the vehicle is prohibited from passing.
Last time my car battery was dead, I directly connected it to a household charger. First, I parked the car in a well-ventilated area and cleaned the dirt and dust on the battery terminals to avoid poor contact. Then, I connected the charger's positive and negative clamps: the red clamp to the positive terminal and the black clamp to the negative terminal or a metal part of the car body, making sure not to reverse the connections. After plugging the charger into an AC power outlet, I set the charging mode to slow charge, typically selecting the 12V voltage mode for an overnight charge, avoiding fast charge to prevent battery damage. During charging, I monitored the battery temperature; slight warmth is normal, but overheating requires stopping the charge and resuming after cooling. After charging, I disconnected the power outlet first before removing the clamps. If the car is driven infrequently, this charging method can save repair costs and extend the battery life by several years. If the charger isn’t available, driving on the highway for half an hour can also recharge the battery automatically, but avoid long idling as it wastes fuel and causes pollution.
