What is the normal voltage output of a car alternator?

1 Answers
DiAdriana
07/30/25 8:14am
Car alternators normally generate electricity between 13.5v and 14.5v. Here are specific details about car alternators: Introduction: The car alternator is the main power source of a vehicle, whose function is to supply power to all electrical equipment (except the starter) when the engine is running normally, while simultaneously charging the battery. Output: Based on the three-phase stator winding of ordinary AC generators, car alternators increase the number of winding turns and lead out connection terminals, adding a set of three-phase bridge rectifiers. At low speeds, the output is from the original winding and the additional winding connected in series, while at higher speeds, only the original three-phase winding provides the output.
Was this review help?
7
4
Share
More Forum Discussions

Should I Stop or Go When the Light Turns Red Midway?

The safest action when the light turns red midway is to stop where you are and wait for the green light before proceeding through the intersection. Penalties for running a red light are as follows: 1. Introduction One: Since the enactment of the new traffic law in 2013, traffic regulations have become very strict. The new rules stipulate that running a red light, which previously incurred a fine and 3 demerit points, now results in a fine and 6 demerit points as of January 1, 2013. In many places, being caught by electronic surveillance only leads to a fine without demerit points. Although running a yellow light is not penalized, it is still advisable to avoid doing so. 2. Introduction Two: The new traffic regulations state that 'driving a motor vehicle in violation of traffic signal lights will result in 6 demerit points.' However, not all cases will lead to a 6-point deduction. For violations such as making a left turn from a straight lane, the penalty remains 3 demerit points under the 'violation of prohibition signs' as per the 'Road Traffic Safety Law.' Additionally, running a red light recorded by cameras only incurs a fine without demerit points.
5
1
Share

Does SF Engine Oil Harm the Engine?

No harm, but it is recommended not to use this type of oil in winter. More details about SF engine oil are as follows: 1. Introduction 1: 'S' stands for gasoline engine oil, and 'F' represents the grade. From API SA, SB, SC, SE, SF, SG, SH, SJ, SL, SM, to SN, the further the letter after 'S', the higher the oil grade. 2. Introduction 2: Engine oil grades are represented by a combination of two letters. The 'S' series represents gasoline engine oils, generally ranging from SA to SN (in alphabetical order, but without SI). Each subsequent letter indicates better performance, with more additives to protect the engine, and higher quality. International brands mostly offer oils above SF grade. 3. Introduction 3: The 'C' series represents diesel engine oils, from API CA, CB, CC, CD, CE, CF, CF-4, CG-4, to CH-4. The further the letter, the higher the oil grade. If both 'S' and 'C' letters are present, it indicates that the oil is suitable for both gasoline and diesel engines. 4. Introduction 4: Engine oil labels include both grade and viscosity specifications. The label usually indicates viscosity and quality. The viscosity of lubricating oils is often identified by SAE grades, where SAE is the abbreviation for the 'Society of Automotive Engineers' in English.
10
2
Share

What does the AUTO button on the window mean?

The AUTO on the car window button means automatic. When the AUTO function on the window is activated, you only need to press the window open/close button once, and the window will open or close automatically without the need to hold the button down. Additionally, the AUTO switch is usually found on automatic air conditioning systems. When you set a desired temperature using the temperature adjustment knob and then press the AUTO button, the automatic air conditioning will adjust itself based on the set temperature and the indoor/outdoor temperatures. Here is a detailed explanation of AUTO: 1. AUTO also has two other meanings: automatic headlights and automatic wipers. The automatic headlight switch turns on when it gets dark. You need to press it when parking and turning off the engine, and it will take effect after you hear a sound. Press and hold it again to cancel. Currently, there are two main types of headlight switches on the market: rotary knob and lever. Automatic wipers, like automatic headlights, need to be set to the AUTO position to work properly. Some models without automatic rain-sensing functionality may have an "automatic intermittent wipe" feature, which adjusts the wiper frequency based on the vehicle's speed, also requiring adjustment to the appropriate position. 2. Below the electronic parking brake, there is another button labeled AUTO-HOLD, sometimes displayed as AUTO or AUTO-H. This is the automatic parking system. Simply put, when the vehicle is frequently starting or stopping, activating this function will help you park the car properly.
15
2
Share

Will points be deducted if the turn signal goes out midway through a turn?

If the left turn signal automatically turns off and is immediately reactivated, no points will be deducted. Additionally, after the left turn signal has been on for 3 seconds and safety is confirmed, you can proceed with starting, overtaking, changing lanes, and other maneuvers. Remember to turn off the turn signal promptly after fully entering the lane. Turning with the turn signal on for less than 3 seconds will result in a 10-point deduction, and activating the turn signal for less than 3 seconds will also incur a 10-point deduction. Below are relevant details about Subject 3: 1. Introduction 1: Subject 3 includes a road driving skills test and a safety and civilized driving knowledge test. It is part of the motor vehicle driver's license assessment and is the abbreviated term for the road driving skills and safety and civilized driving knowledge test in the motor vehicle driver's examination. The content of the road driving skills test varies depending on the type of vehicle being licensed. 2. Introduction 2: The road driving skills test for Subject 3 generally includes preparation before starting, simulated lighting test, starting, driving straight, gear shifting operations, changing lanes, pulling over, going straight through intersections, turning left at intersections, turning right at intersections, crossing pedestrian crosswalks, passing school zones, passing bus stops, meeting oncoming vehicles, overtaking, making U-turns, and nighttime driving. 3. Introduction 3: The safety and civilized driving knowledge test generally includes requirements for safe and civilized driving operations, safe driving knowledge under adverse weather and complex road conditions, emergency handling methods for situations such as tire blowouts, and post-accident handling knowledge.
9
4
Share

What are the effects of turbocharging a car?

When the engine is operating, both pressure and temperature significantly increase, resulting in a shorter lifespan compared to naturally aspirated engines of the same displacement. Additionally, mechanical performance and lubrication properties are affected. Introduction to Turbocharging: Simply put, turbocharging allows for more complete combustion of gasoline by significantly increasing the air-to-fuel mixture. As a result, turbocharged engines deliver strong power output but also consume more fuel, without significant fuel savings. Advantages of Turbocharging: It increases the engine's air intake, thereby boosting power and torque. After turbocharging, the engine can output greater power.
13
4
Share

What are the subjects 1, 2, 3, and 4 in driving school?

The exam content includes the most fundamental knowledge such as driving theory basics, road safety laws and regulations, traffic signals, traffic rules, as well as local regulations. The total exam duration is 45 minutes. The exam paper consists of 100 questions, including true/false and multiple-choice questions, with a full score of 100 points and a passing score of 90. The exam questions are randomly selected and combined by the computer driver examination system according to the proportion specified in the "Motor Vehicle Driver's License Work Standards". Subject 1 Exam Process: Follow the instructions of the staff and collect your driving training file in order in the waiting area; Bring and present your ID card for verification by the supervising officer; Mobile phones must be turned off upon entering the exam area; No loud talking is allowed in the exam area; Regulation textbooks are not allowed in the exam area (or must be kept in a bag); After the exam, keep your ID card safe and submit the file to the "Document Submission Window" at the front of the exam room; Candidates who pass the exam must sign under the guidance of the staff at the exam exit before leaving; Candidates who fail the exam can leave immediately and wait for the driving school staff to notify them of the retake time.
16
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.