What is the ignition current of a car?

1 Answers
Tanner
07/30/25 7:03am
During the one or two seconds of car starting, the current is approximately 100-300A. Here is more information about the ignition current: 1. Principle: The maximum current at the moment of ignition is generally 500-600A, which quickly drops to around 100-200A. 2. Current loss direction: Over 90% of the starting current is supplied to the starter motor. After the car starts, the generator begins to work, and the generated current is mainly provided to the vehicle's electrical components. If the current generated by the generator exceeds the current consumption of the vehicle's electrical components, the remaining current will be used to charge the battery.
Was this review help?
13
2
Share
More Forum Discussions

How Long is the Warranty for a Car Brake Wheel Cylinder?

Under normal usage conditions, the brake wheel cylinder of a car does not get damaged. Most cases of brake wheel cylinder failure are due to aging after prolonged use of the vehicle. Below is relevant information about the brake wheel cylinder: 1. Brake Wheel Cylinder: The brake wheel cylinder is a component of the car's braking system, primarily responsible for pushing the brake pads to create friction against the brake drum, thereby slowing down or stopping the vehicle. When the driver presses the brake pedal, the master cylinder generates thrust to pressurize hydraulic fluid into the wheel cylinder, which then activates the brake pads. 2. Types of Brakes: Car brakes are categorized into air brakes and hydraulic brakes. Air brakes consist of an air compressor, air reservoir, master cylinder, quick-release valve, and actuator wheel, among others. Hydraulic brakes are composed of a master cylinder and brake fluid lines, mainly functioning by delivering brake fluid from the master cylinder to the wheel cylinder, causing friction between the brake disc and pads to achieve braking effect.
19
5
Share

What does a red battery light on the car mean?

A red battery light on the dashboard is a warning light indicating the generator is not producing electricity. Here is relevant information about the red battery light: 1. Principle: A generator is a mechanical device that converts other forms of energy into electrical energy. There are many types of generators, but their working principles are all based on the laws of electromagnetic induction and electromagnetic force. Therefore, the general construction principle is to use appropriate magnetic and conductive materials to form magnetic and electric circuits that interact electromagnetically to generate electromagnetic power. 2. Precautions: Regularly clean accumulated dirt and dust on the generator's surface to maintain cleanliness and good ventilation. Frequently check the tightness of all fasteners related to the generator and promptly tighten all screws. The tension of the drive belt should be appropriate. If it's too loose, it may slip and cause insufficient power generation; if it's too tight, it may damage the belt and the generator bearings.
19
3
Share

Why does the dashboard not display speed after replacing the controller?

Carefully check whether it is machine-driven or an electronic display. Below is relevant information about the dashboard: 1. Introduction: The dashboard is a rigid plate or structural component used to install instruments and related devices. It can be categorized by type into screen-type dashboards, frame-type dashboards, channel-type dashboards, and cabinet-type dashboards. The dashboard can be equipped with external lighting and may also include a control console. It comes in various forms and specifications, allowing for the installation of different instruments as needed, or the combination of various dashboards into a single unit. 2. Types of indicator lights on the dashboard: door status indicator, parking indicator, various dashboard indicators, battery indicator, fuel indicator, washer fluid indicator, electronic throttle indicator, front and rear fog light indicators, turn signal indicators, high beam indicator, seat belt indicator, O/D gear indicator, recirculation indicator, width indicator, VSC indicator, TCS indicator, etc.
5
3
Share

How should a car be parked?

Parking a car differs slightly between automatic and manual transmission models. Manual transmission model: First, press the brake to slow the car down. Then, hold the brake to bring the vehicle to a complete stop. Engage the handbrake, shift the gear to neutral. Turn off the engine, exit the car, and lock the doors. Automatic transmission model: First, press the brake to slow the car down. Then, hold the brake to bring the vehicle to a complete stop. Shift the gear to neutral, engage the handbrake, and finally shift the gear to P (Park). Turn off the engine, exit the car, and lock the doors. The front wheels of a car are steering wheels, meaning the rear wheels can only rotate around a point on the extension line of the rear axle. To park a car in a parking space, first position the rear wheels correctly. The front wheels can be approximately considered as capable of moving laterally, making the task straightforward.
1
4
Share

Why is there no clicking sound when using the turn signal?

If the turn signal does not make a clicking sound, it may be due to poor contact of the turn signal or a malfunction of the buzzer. Below is some information regarding the turn signal indicator sound: 1. How to fix the turn signal indicator sound if it stops working: The absence of the turn signal indicator sound could be caused by poor contact of the turn signal or a malfunction of the buzzer. You can try turning on the turn signal switch and observe from outside the car whether the turn signal is functioning normally. If it is, this indicates that the buzzer is faulty. In this case, simply replacing the buzzer will resolve the issue. 2. No clicking sound when using the turn signal: If the buzzer malfunctions, the clicking sound will disappear. Additionally, the flasher unit might be faulty. The flasher unit controls the blinking frequency of the turn signal. If there is an issue with the flasher, the turn signal will remain constantly lit. The best solution for this problem is to replace the flasher unit.
18
5
Share

How long should you wait before taking a new car on the highway?

A new car can be taken on the highway at any time, as long as you avoid running the engine at excessively high RPMs during the drive. Below are some precautions for taking a new car on the highway: Avoid excessively high RPMs: New cars have a break-in period after purchase. During this period, the car can be driven on the highway, but you should avoid running the engine at excessively high RPMs. Running the engine at high RPMs during the break-in period can increase engine wear. After the break-in period, it is recommended to take the car on the highway to enhance engine performance. Post-break-in inspection: After the initial break-in period, the components of the new car's engine begin to operate more smoothly. Taking the car on the highway and maintaining high RPMs for a period of time can help test the engine's performance under extreme conditions, expanding the components' tolerance for tensile, compressive, impact, and torsional stresses.
18
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.