Why Does a Car Battery Suddenly Die in Winter?

1 Answers
IvanFitz
07/29/25 11:24pm
Here are the reasons why a car battery suddenly dies: 1. The car has been parked for a long time, causing the battery to lose power. Even when the car is idle, the battery will discharge due to its self-discharge characteristics, even if it is not in use. 2. The battery has reached the end of its lifespan. Observe the color inside: green indicates the battery is normal, while black indicates low voltage and insufficient charge, which can be resolved by charging. 3. Engine damage. This can occur if the car's alternator belt is loose or broken, preventing the alternator from functioning. 4. Insufficient battery electrolyte. During use, the electrolyte in a car battery naturally evaporates and depletes. The electrolyte level should be between the maximum and minimum marks. Insufficient electrolyte will naturally lead to inadequate battery charge. 5. A blown fuse, causing the battery to lose power. If the car's alternator fuse blows, the battery cannot charge, leading to a dead battery. A sign of this issue is the alternator fault indicator light turning on. 6. Corrosion of the battery terminals. Poor contact due to corroded battery terminals can result in the car battery losing power.
Was this review help?
17
3
Share
More Forum Discussions

How to use the air conditioning in a Polo car?

New Polo's air conditioning mode has replaced the traditional knob with button selection, making it more convenient and accurate to operate while driving. Simply turn on the 'auto' mode or the 'AC', and adjust the fan speed as needed. The correct usage of Volkswagen's new Polo air conditioning is as follows: 1. Proper defogging: During rainy or snowy weather, due to high humidity inside the car and the temperature difference between the inside and outside (cold outside and warm inside), fog will form on the inner surface of the car windows. This significantly affects driving safety. Knowing how to properly defog to eliminate safety hazards is one of the essential skills every car owner must master. 2. Correct use of internal and external circulation: The airflow ducts inside and outside the car are interconnected. Whether the air conditioning system is on or not, air continuously flows in and out. If the fan is turned on, it will accelerate the exchange and circulation of air. When driving in mountainous areas or by the sea, using the external circulation mode can mostly fill the car with fresh air, improving the air quality inside. However, if the external circulation mode is used in heavy traffic areas, it will draw in exhaust fumes and dust, significantly reducing the air quality inside the car. In severe cases, it may even cause discomfort to the passengers. Therefore, when driving in congested commuting areas, try to avoid using the external circulation mode to prevent affecting the respiratory health of the occupants.
6
0
Share

What does the engine MIL fault mean?

MIL stands for Malfunction Indicator Lamp, indicating that there is a fault in the engine system. Here is the relevant information: 1. Fault light on: When the general OBD fault indicator light comes on, the ECU will use some pre-set data to temporarily replace the faulty data. As a result, the car will operate based on "false data," which may affect many normal operations. 2. Precautions: Regardless of the cause of the engine fault light, it is necessary to use a computer diagnostic tool for diagnosis. If it is a false fault code, simply clear it. If there is a real fault, troubleshooting and repair should be carried out based on the fault code.
13
2
Share

What is the maintenance schedule and content for the Toyota Corolla?

Toyota Corolla's maintenance schedule involves minor maintenance every 5,000 kilometers and a major maintenance at 40,000 kilometers. The maintenance primarily covers the engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, etc. Below is an introduction to car maintenance: 1. Definition of car maintenance: Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing. 2. Purpose of car maintenance: The purpose of car maintenance is to keep the car clean, maintain normal technical conditions, eliminate potential hazards to prevent failures, slow down the deterioration process, and extend the usage cycle.
2
2
Share

What are the symptoms of a loose motorcycle timing chain?

Motorcycle timing chain looseness can lead to reduced engine efficiency in mild cases, and in severe cases, it can cause the engine to malfunction or even become damaged. Below is some information about the motorcycle timing chain: 1. Introduction: The motorcycle timing chain, also known as the timing chain, is responsible for providing the engine with accurate ignition timing and coordinating the opening and closing of the valves to ensure the engine operates normally and efficiently. 2. Hazards of being too loose or too tight: The speed of the vehicle is determined by the engine's RPM and the transmission gear. The chain is the connecting component between the transmission output gear and the drive wheel gear. If it is too loose, it cannot guarantee the transmission ratio and power transfer; if it is too tight, it is prone to wear and breakage.
20
1
Share

Why can't the van start after wading through water?

The reasons why a van cannot start after wading through water are as follows: 1. Spark plug failure: The spark plug is the key component of the car's ignition system, so its performance directly affects the overall working performance and efficiency of the vehicle. 2. Battery depletion: The characteristic symptom is that the starter begins to turn but the speed is insufficient, and later the starter only makes abnormal noises without turning. 3. Gasoline flow obstruction: The characteristic symptom is that there is no oil pressure in the engine fuel supply pipe. This situation often occurs on particularly cold mornings and is caused by long-term dirt in the fuel pipeline. The car can be placed in a warm environment, and it can start after a while.
4
5
Share

What Does Engine Control System Malfunction Mean?

Engine control system malfunction indicates ECU damage. The causes of this malfunction include: 1. Power circuit: power circuit failure; 2. Power module: output power module failure; 3. Memory: memory failure; 4. ECU: ECU water ingress and moisture damage. Below is an introduction to related content: ECU: ECU stands for Electronic Control Unit, which consists of a microprocessor, memory, input/output interfaces, analog-to-digital converters, as well as shaping, driving, and other large-scale integrated circuits. The car engine is the device that provides power to the car, serving as the heart of the vehicle, determining its power, fuel efficiency, stability, and environmental friendliness. Depending on the power source, car engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid power systems, among others.
12
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.