
Check if it's loose or has rust. If there is rust, it is recommended to remove it. First, you need to find a rescue vehicle. Directly connect the two vehicles to the corresponding positive and negative terminals. After connecting, the rescue vehicle should start first, then power on the rescued vehicle to try starting it.

I've experienced a dead car battery several times, and the most memorable was when I returned from a business trip and couldn't start my car at all—turns out the battery was completely drained. I immediately borrowed jumper cables from a neighbor to help out. The procedure is straightforward: first connect positive to positive and negative to negative, being careful to avoid short circuits. After jump-starting, let the engine run for half an hour to recharge. Later, I bought a portable jump starter to keep in the car—it's compact and super handy. Battery drain often happens due to prolonged parking or forgetting to turn off lights, so I've made it a habit to check all electronics are off before leaving the car. Car batteries typically last 3-5 years; I recommend using a multimeter to check voltage regularly and replace or maintain it if too low—don't wait until it dies completely. The battery system also affects vehicle safety, as alternator failure can cause power leaks. If you face frequent battery drains, it's best to get it checked at a professional shop.

Dealing with a dead car battery isn't too difficult. My most common method is asking a friend or passerby for a jump start. Specific steps: First prepare a set of jumper cables, connect positive to positive on the other car's battery, attach the negative to your car's frame or metal part of the engine bay to prevent short circuits, then start the assisting vehicle and wait two minutes before starting your own car. After successful startup, don't rush to turn it off - drive for about half an hour to let the alternator recharge it. For prevention, I make sure to drive the car at least once a week, especially in cold weather when battery capacity decreases; always check that all lights and electronics are off when parking - even forgotten AC can drain power. For frequent travelers leaving cars idle, buying a battery maintainer is more convenient. Safety first - don't stand too close to potential sparks near flammable materials during jump starting, and if unsuccessful, don't hesitate to call towing services.

Safety first when dealing with a dead battery. Once in an unfamiliar parking lot, I immediately turned on the hazard lights to warn other drivers and sought help from a reliable parking attendant for a jump start. The process is simple: both cars should be turned off, connect positive to positive and negative to negative, then start the assisting car before attempting to start the dead one. After starting, drive for half an hour to recharge the battery. For prevention, I always check that all lights are off before leaving the car. Frequent battery failures may indicate internal aging or leakage, requiring professional inspection without delay. Using a portable jump starter is effective when voltage is low. Regularly testing battery voltage can help detect issues early, preventing problems before they occur for peace of mind.


