How to Jump Start a Car with a Battery?

2 Answers
ManuelLynn
07/24/25 5:35pm
Methods for jump starting a car with a battery: 1. Take out the red (positive) jumper cable, connect one end to the positive terminal of your vehicle's battery, and the other end to the positive terminal of another vehicle's battery or a standalone battery; 2. Take out the black (negative) jumper cable, connect one end to the negative terminal of your vehicle's battery, and the other end to the negative terminal of another vehicle's battery or a standalone battery; 3. Start the vehicle. Once the vehicle starts successfully, remove the jumper cables one by one, being careful not to touch the metal body or other components. Let the engine run for half an hour or more to recharge the depleted battery.
Was this review help?
6
5
Share
MorganLynn
08/11/25 9:43am
Speaking of jump-starting a car, I've had plenty of firsthand experience. The first step is to make sure both vehicles are parked on level ground in a safe location, keeping them close but not too close to avoid collisions. Turn off all electrical devices and engines, and remove the keys. Prepare a set of high-quality jumper cables with thick copper wires. The connection sequence is crucial: Start by attaching the red clamp to the positive terminal (marked with a plus sign) of the working battery, then connect it to the positive terminal of the dead battery. Next, attach the black clamp to the negative terminal (marked with a minus sign) of the working battery, but instead of connecting the other end directly to the negative terminal of the dead battery, clamp it to a clean, unpainted metal part under the hood, such as the engine block. This is much safer and helps prevent sparking or explosion risks. After that, start the working car and let the engine run at a slightly higher RPM for a few minutes to charge the dead battery. Try starting the dead car—if successful, drive it for about half an hour to stabilize the charge. When disconnecting the clamps, remove the black one first, followed by the red one. I always remind friends to regularly check their battery’s health, especially in winter or after long periods of inactivity, as batteries tend to drain more easily. It’s best to test the voltage every six months and keep a set of jumper cables in the trunk for peace of mind.
Was this review help?
1
3
Share
Expand All
More Forum Discussions

What is the tire size of the Citroen C5?

The tire size of the Citroen C5 is 225/55R17. Here, 225 refers to the width of the tire section, which is the distance between the two sidewalls; 55 is the aspect ratio of the tire, representing the ratio of the tire's height to its width; R indicates the tire's structure, meaning it is a radial tire; and 17 denotes the rim diameter. The Citroen C5 is a mid-size car under Dongfeng Citroen, with dimensions of 4825 mm in length, 1860 mm in width, and 1480 mm in height, and a wheelbase of 2815 mm. In terms of power, the Citroen C5 offers two engine options: a 2.0L and a V6 3.0L engine, both featuring multi-valve design. The 2.0L engine delivers a maximum power of 100 kW and a peak torque of 190 Nm.
5
3
Share

What are the symptoms of a differential failure?

Differential failure symptoms: 1. Abnormal noises from the vehicle, accompanied by noticeable jerking sensations during acceleration or deceleration; 2. Significant resistance felt when turning; 3. The two drive half-shafts become rigidly connected, maintaining identical rotational speeds for both wheels, which may prevent the vehicle from moving. Functions of the differential: 1. Transmits engine torque from the universal drive assembly to the drive wheels via the final drive, differential, and half-shafts, achieving speed reduction and torque increase; 2. Alters the direction of torque transmission through the final drive bevel gear set; 3. Enables differential action between the two wheels via the differential, ensuring inner and outer wheels rotate at different speeds during turns.
9
3
Share

How to Open the Front Hood of a Magotan?

Steps to open the front hood of a Magotan: First, locate the hood release lever under the left side of the steering wheel inside the car, pull it once, and you will hear a sound from the hood as it slightly lifts. Then, reach into the center front area under the hood to find a small lever, pull it to fully open the hood. The Magotan is closely related to the Passat B6, known as the Future B6, and it is the first B-segment sedan produced and sold by FAW-Volkswagen since its establishment. The domestically produced new Magotan largely follows the design language of the European next-generation Passat, featuring a new family-style front grille combined with more angular headlights on both sides. At the rear, the new Magotan not only comes with LED taillights but also adopts a dual-exhaust design with flat outlets on both sides.
7
3
Share

What does the yellow exclamation mark on the Honda CR-V dashboard mean?

The appearance of an exclamation mark on the car dashboard indicates an abnormality or malfunction in the corresponding system. There are many dashboard indicator lights with exclamation marks, such as the tire pressure indicator, lighting fault indicator, steering system fault indicator, brake system fault light, transmission fault indicator, and wiper fault indicator. Below is a detailed explanation of the exclamation mark warning lights: General Fault: A triangle with an exclamation mark inside indicates a general performance or component malfunction in the vehicle. Common issues include parking sensor failure, fuel cutoff system intervention or malfunction, external light failure, or engine oil pressure sensor failure. It is necessary to visit a 4S shop for inspection to identify the source of the fault. Automatic Transmission Fault: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a transmission malfunction or transmission fluid level below the normal range. The transmission fluid should be replaced promptly. Brake System Fault: A circle with parentheses and an exclamation mark in the middle represents a brake system warning, indicating a brake system malfunction or low brake fluid level. Immediate inspection and repair of the brake system are required to avoid accidents. Tire Pressure Anomaly: A horizontal line with parentheses and an exclamation mark below represents the tire pressure monitoring warning light. This light illuminates when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in one of the vehicle's lights. Solution: Visit a 4S shop for inspection as soon as possible, or check yourself, focusing on commonly used bulbs such as turn signals, fog lights, and interior lighting to identify the issue. In addition, during daily vehicle use, the fault lights displayed on the dashboard are divided into two colors, yellow and red, for different levels of alerts: Yellow indicates a fault in the corresponding system that is not very severe. Reduce speed and proceed to the nearest service point for repairs to eliminate potential safety hazards. Red indicates a very serious problem in the corresponding system. If this occurs, do not continue driving. Pull over immediately and seek professional assistance to prevent unpredictable risks to the vehicle and personal safety. It is important to note that when the car is started, all lights will illuminate as the system performs an automatic check. After the check is completed, the lights will turn off automatically. If a light does not illuminate when the ignition is turned on, remains lit without turning off, or lights up while driving, it indicates a fault in the related system. In such cases, seek professional help promptly for inspection and elimination of safety hazards.
14
3
Share

What is the mirror in the center of the car called?

The mirror in the center of the car is called the rearview mirror, which is mainly designed to allow the driver to check the situation behind the vehicle without changing their field of vision. Depending on the material of the rearview mirror, it can be categorized into aluminum mirrors, chrome mirrors, silver mirrors, and blue mirrors. Based on the shape of the mirror surface, rearview mirrors can be divided into flat mirrors, spherical mirrors, and dual-curvature mirrors. According to their functionality, they can be classified into automatic anti-glare rearview mirrors and manual anti-glare rearview mirrors. An automatic anti-glare rearview mirror consists of a mirror, two photodiodes, and an electronic controller. When the sensor detects that the light on the mirror is too bright, it darkens the mirror glass, thereby reducing the refractive index of the light and effectively protecting the driver's eyes. A manual anti-glare rearview mirror typically consists of two mirrors with different refractive indices, and the mirror can be switched using a toggle to reduce the reflection of light.
4
3
Share

What is the displacement of the Golf R?

The displacement of the Golf R is 2.0 liters. The car is equipped with Volkswagen's third-generation EA888 engine, which delivers 290 horsepower and a maximum torque of 380 Nm. It can output maximum power between 5,400 and 6,500 rpm and maximum torque between 1,850 and 5,300 rpm. The engine is paired with a 7-speed dual-clutch transmission. The Golf R features a MacPherson independent front suspension and a multi-link independent rear suspension. The multi-link independent suspension enhances wheel contact with the ground, improving traction and, consequently, the car's handling. The Golf R also comes with a full-time all-wheel-drive system and a multi-plate clutch central differential. The all-wheel-drive system enhances mechanical traction and improves acceleration performance.
15
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.