Browse
For Sale
Antiques CollectiblesApparelBaby Kids ItemsBooks， Movies And MusicElectronicsFree StuffGarden OutdoorHealth BeautyHome GoodsHome Improvement SuppliesMusical InstrumentsOffice SuppliesPet SuppliesSporting GoodsTicketToys GamesTransportationOthers
Jobs
AccountingAdministration & Office SupportAdvertising， Arts & MediaBanking & Financial ServicesCall Center & Customer ServiceCEO & General ManagementCommunity Services & DevelopmentConstructionConsulting & StrategyDesign & ArchitectureEducation & TrainingEngineeringFarming， Animals & ConservationGovernment & DefenseHealthcare & MedicalHospitality & TourismHuman Resources & RecruitmentInformation & Communication TechnologyInsuranceLegalManufacturing， Transport & LogisticsMarketing & CommunicationsMining， Resources & EnergyReal Estate & PropertyRetail & Consumer ProductsSalesScience & TechnologySelf EmploymentSport & RecreationTrades & ServicesOther
Property
BuyRent
Cars
Used CarsNew CarsOthers
Services
BusinessCraftsDesign And WebEventsHome ImprovementLegalLessonsPersonalPetsPhotographyRepair And Technical SupportWellnessWriting， Translation， And TranscriptionOthers
Community
Activities & GroupsArtists & MusiciansClasses & LessonsEventsFriendship & NetworkingLost & FoundRideshareSports TeamsVolunteersTravel & Travel PartnersSkills & Language SwapOther

How many hours does it take to fully charge a dead car battery?

1 Answers
TannerDella
07/30/25 12:08am
After a car battery runs out of power, it generally takes about two hours of driving to fully recharge it. Here is some relevant information about car battery charging: 1. Charging time: Typically 1-3 hours, though few people actually calculate this time because the battery keeps charging while the engine is running. If the battery frequently dies, it indicates a problem with the battery. 2. Reasons for battery discharge: Frequent short trips and stop-and-go driving can cause the battery to remain undercharged for extended periods, shortening its lifespan. Driving at a steady speed on the highway for 20-30 minutes allows sufficient time for the battery to recharge. 3. Jump-start charging: If the battery is completely dead and requires a jump-start to get the car running, you should immediately drive at a constant speed for at least 20-30 minutes to ensure the battery is adequately recharged.
Was this review help?
17
5
Share
More Forum Discussions

What is the problem with the air conditioner not blowing air?

The problem of the air conditioner not blowing air is: 1. The indoor unit is not connected to the power supply; 2. The temperature of the indoor heat exchanger is low; 3. The outdoor heat exchanger is frosted; 4. The air conditioner compressor is damaged. The functions of the car air conditioner are: 1. To adjust and control the temperature, humidity, air cleanliness, and air flow inside the compartment to an optimal state; 2. To provide a comfortable riding environment for passengers and reduce travel fatigue; 3. To create good working conditions for the driver and ensure driving safety. Things to note when using the air conditioner: 1. Choose an appropriate air conditioner temperature; 2. Do not immediately start the internal circulation when entering the car in summer; 3. Do not keep the air conditioner on for a long time; 4. Do not adjust the air outlet direction arbitrarily; 5. Use the air conditioner in a fully enclosed state; 6. Do not rest or sleep for a long time in a parked car with the air conditioner on.
2
4
Share

What is the adjustment method for single-cylinder valve clearance in diesel engines?

Adjustment method for single-cylinder valve clearance in diesel engines: 1. Before adjusting the valve clearance, first remove the cylinder head cover. Rotate the crankshaft to align the timing mark on the flywheel with the 0 scale line. At this point, cylinders 1 and 6 of the diesel engine are at top dead center; 2. Identify the cylinder at top dead center at the beginning of the expansion stroke. Slightly rotate the crankshaft and observe whether both the intake and exhaust valves are stationary; 3. Adjust the valve clearance. Use a wrench and screwdriver to loosen the lock nut and adjusting screw on the rocker arm. Insert a feeler gauge of the specified thickness between the rocker arm and valve, then turn the adjusting screw for verification. When the rocker arm and valve are in contact with the feeler gauge but the gauge can still be moved slightly, tighten the nut. Finally, recheck by moving the feeler gauge again; 4. After adjusting the valves, rotate the crankshaft 360 degrees and complete the valve clearance adjustment using the two-step adjustment method.
7
5
Share

Where is the Subaru Outback Starter Relay Located?

Subaru Outback starter relay is located next to the battery. Working principle of the relay: The coil of the starting relay is connected in series with the running winding of the compressor motor. During motor startup and operation, the operating current passes through the relay coil, while the control contacts are connected in series with the starting winding to control its opening and closing. The control contacts of the relay are normally open. When power is initially applied, only the relay coil and running winding carry current. Since the rotor is stationary, the starting current is very high, causing the relay coil to attract the armature upward, closing the moving and stationary contacts and connecting the starting winding, which initiates compressor rotation. As the speed increases, the current decreases, allowing the armature to drop by its own weight, opening the contacts and completing the starting process. Function of the starting relay: It assists the motor in starting and automatically disconnects the auxiliary winding after startup to prevent burning out the auxiliary winding coil. When the motor's running winding is energized and transitions to normal operation, the starting relay cuts off the power to the starting winding.
18
3
Share

Where is the oil pressure regulating valve of Volkswagen Tiguan located?

The oil pressure regulating valve of Volkswagen Tiguan is located near the engine oil filter. Introduction to Engine Oil: Engine oil, also known as engine lubricant, has a density of approximately 0.91×10³ (kg/m³). It serves multiple functions in the engine, including lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption. It is often referred to as the 'blood' of the car. Engine oil consists of two main components: base oil and additives. The base oil is the primary component of the lubricant, determining its basic properties, while the additives compensate for and improve the shortcomings of the base oil, providing additional performance enhancements. Additives are an essential part of the lubricant. Classification of Engine Oil: Engine oils on the market can be broadly categorized into mineral oils and synthetic oils based on their base oil (vegetable oils are not included due to their scarcity). Synthetic oils are further divided into full synthetic and semi-synthetic oils. Engine Oil Control Valve: The oil regulating valve is designed to regulate and prevent excessive pressure in the engine lubrication system. It consists of a valve body assembly and an actuator assembly (or actuator system).
20
5
Share

What is the fuel consumption of the Alphard business vehicle?

The official combined fuel consumption of the Alphard business vehicle is 9.2L/100km. Methods to check vehicle fuel consumption: Generally, the onboard computer provides an average fuel consumption value, which is displayed on the dashboard, but it often differs from the actual fuel consumption. Specific vehicle fuel consumption can be calculated using the formula: fuel consumption per 100 kilometers equals the amount of fuel consumed divided by the distance traveled multiplied by 100. Factors affecting vehicle fuel consumption: Driver's driving habits: A vehicle's fuel consumption is closely related to the driver's driving habits. If the driver frequently engages in aggressive driving, sudden acceleration, or sudden deceleration during driving, it will affect the vehicle's fuel consumption; Tire pressure: Fuel consumption is also directly related to tire pressure. For models without tire pressure monitoring displays, many owners tend to overlook the importance of tire pressure. When the tire pressure is too high or too low, the vehicle's fuel consumption will increase.
11
1
Share

How often should the transmission fluid for Volkswagen 6-speed DSG be changed?

Volkswagen 6-speed DSG transmission fluid is generally recommended to be changed every two years or approximately 40,000 kilometers. Signs that the transmission fluid needs to be changed include: vehicle shaking, gear shifting hesitation; transmission high-temperature warning on the dashboard; engine stalling; unusual noises. Different vehicle models have different change intervals. Below are the recommended change intervals for transmission fluid: Manual transmission: Manual transmission fluid is generally recommended to be changed every three years or approximately 100,000 kilometers. Automatic transmission: Automatic transmission fluid is generally recommended to be changed every two years or approximately 40,000 kilometers. Continuously variable transmission (CVT): CVT fluid is generally recommended to be changed every two years or approximately 60,000 kilometers. The methods for changing transmission fluid are as follows: Unscrew the drain plug at the bottom of the transmission to drain the old fluid and then refill. Remove the transmission oil pan directly to drain the old fluid and refill: This method is more thorough than the previous one, as it removes impurities from the bottom of the oil pan. Use a circulation machine to change automatic transmission fluid: Dynamic fluid exchange using an intelligent circulation machine can filter and clean sludge and impurities inside the automatic transmission.
9
5
Share
Trending Ranking
What is the purpose of car waxing?
What are the differences between the Maybach S400 and the Mercedes-Benz S400?
Can You Still Drive If the Car Water Pump Is Broken?
4
What are the reasons for the wiper failure of the Baojun RS3?
5
Where is the Best Position for Car Audio Sound Field?
6
What are the reasons why the Haval M6 trunk cannot be opened?
7
What Causes Water Dripping from the Front of the Malibu's Chassis?
8
What is the Suitable Age Range for BMW 5 Series?
9
What are the differences between the 2018 and 2021 Accord models?
10
Has the break-in period passed at 1500 kilometers?
More Forum Discussions

What are the solutions for compressor overheating protection?

5
2
0

What does it mean when the SVS light appears on the vehicle dashboard?

15
1
0

What is the direction of car tire screws?

13
2
0

What does a fan symbol on the vehicle dashboard represent?

17
5
0
About Us
Terms of Use
Privacy Policy
Help
Contact Us
FAQ
Cookie
Cookie Policy
Cookie Settings
© 2025 Servanan International Pte. Ltd.