What are the solutions when the car won't start due to a dead battery?
2 Answers
The solutions when the car won't start due to a dead battery are: 1. Push-starting the car, which is only applicable to manual transmission vehicles; 2. Jump-starting the car using jumper cables from another vehicle; 3. Using a portable emergency power bank to charge and start the car. The functions of the battery are: 1. Supplying power to the engine starting system, ignition system, and other car electrical systems; 2. Providing power to the car's electrical equipment when the engine is off or idling at low speed; 3. Assisting in power supply when the electrical demand exceeds the alternator's capacity; 4. Acting as a voltage stabilizer for the entire vehicle's electrical system, mitigating voltage spikes and protecting the car's electronic devices.
Last month I experienced a dead battery where the car wouldn't start at all. The best solution is a jump start - find a friend's car to help, use jumper cables with red clamps connecting both positive terminals, black clamp first to the donor car's negative terminal then to the frame or metal engine part of the dead car (never touch metal body to prevent short circuit). After starting, let the engine run for 20-30 minutes to recharge. Without tools, call roadside assistance or use free insurance services rather than attempting DIY fixes. Old batteries often fail, especially in winter or when AC is left on draining power. Check monthly - a voltmeter reading above 12.6V is normal. Replace every ~3 years to save money and hassle. Choose reliable brands (~¥500), and maintain regularly to avoid emergencies.
