How to Use a Car Battery Charger?

1 Answers
EvelynLee
07/25/25 12:13am
Connect the positive terminal of the battery to the positive terminal of the power source, and the negative terminal of the battery to the negative terminal of the power source. Relevant instructions are as follows: 1. Initial Charging: Charge with the initial charging current until bubbles appear in the electrolyte and the single-cell voltage rises to 2.3-2.4V; then reduce the current to 1/2 of the initial charging current and continue charging until the electrolyte releases intense bubbles, and both the specific gravity and voltage remain stable for 3 consecutive hours. 2. Charging Time: The total charging time is approximately 45-65 hours, with the temperature controlled between 35-40°C. After the initial charging is completed, if the specific gravity of the electrolyte does not meet the specified requirements, use distilled water or electrolyte with a specific gravity of 1.4 for adjustment. After adjustment, charge for another 2 hours until the specific gravity meets the specified requirements.
Was this review help?
17
0
Share
More Forum Discussions

What are the steps for finding reference points when exiting a parallel parking space?

Steps for finding reference points when exiting a parallel parking space are as follows: 1. After hearing the voice prompt, press the clutch and brake, shift into 1st gear, turn on the left turn signal, and fully turn the steering wheel to the left. Slowly exit the parking space; when the right front corner of the hood aligns with the right roadside line (this is the first reference point), straighten the steering wheel and continue moving forward. 2. Continue moving forward. When the left one-third of the hood aligns with the yellow line (this is the second reference point), turn the steering wheel one full turn to the right; allow the vehicle to navigate around the corner of the parking space and exit. Once the car body is parallel with the road, straighten the steering wheel to the left and exit the parallel parking test area. During the process of exiting the parallel parking space, it is important to control the clutch properly—the speed should be slow, but the car should not stop midway. The timing of turning the steering wheel must be precise; otherwise, missing the correct timing can easily result in crossing the line.
14
5
Share

How to conduct annual inspection for a 4WD vehicle?

For the annual inspection of a 4WD vehicle, you need to bring the following documents: Compulsory Traffic Accident Liability Insurance Certificate for Motor Vehicles, copy of the vehicle and vessel tax payment or tax exemption certificate, original Motor Vehicle Safety Technical Inspection Certificate, original Motor Vehicle Driving License, and Motor Vehicle Inspection Certificate. The process is the same as for 2WD vehicles. Vehicle inspection is not related to the drive system; it is determined by the number of seats. Vehicles with fewer than seven seats require an on-site inspection every six years, while vehicles with seven or more seats require an inspection every two years. More details are as follows: 1. Small and micro non-operational passenger vehicles must be inspected every two years within the first six years, every year after six years, and every six months after 15 years. Operational passenger vehicles must be inspected every year within the first five years and every six months after five years. Medium and large trucks must be inspected every year within the first ten years and every six months after ten years. 2. Required documents for vehicle annual inspection: Compulsory Traffic Accident Liability Insurance Certificate for Motor Vehicles. Copy of the vehicle and vessel tax payment or tax exemption certificate. Original Motor Vehicle Safety Technical Inspection Certificate. Original Motor Vehicle Driving License. Motor Vehicle Inspection Certificate.
17
4
Share

How to Retake the Test After Losing All Driving License Points?

Here are the steps to retake the test after losing all driving license points: 1. Handle the traffic violations and pay all fines as soon as possible. Only then will the violation points be automatically cleared in the next scoring cycle. 2. Within 15 days, the driver must go to the traffic management department of the public security authority where the license was issued or where the violation occurred to participate in a seven-day study session on road traffic safety laws, regulations, and related knowledge. 3. After completing the study session, the traffic management department will administer a test (i.e., Subject 1) within 20 days. 4. If the test is passed, the points will be cleared, and the driving license will be returned. Otherwise, the driver must continue studying and retaking the test. 5. If the driver refuses to participate in the study session or the test, the traffic management department will announce the suspension of their driving license. Additionally, if it is a Class A or B driving license, the process is not as simple as having the license withheld and passing Subject 1. The vehicle management office will revoke the highest permitted driving category qualification, and the driver must apply for a downgraded license within 30 days.
20
4
Share

How to Adjust Car Lights Properly?

When adjusting car lights, first find a wall in a dimly lit area. Park the car about 10 meters away from the wall, ensuring the car is perpendicular to the wall and the ground is level. Place a piece of tape on the wall at a point 10 cm lower than the headlight height in the middle of the front of the vehicle. Adjust the headlights until the light beam projects straight forward. More details are as follows: 1. The core of the headlight is the bulb, and its performance directly affects nighttime illumination, which is crucial for driving safety. 2. Only high-quality headlight bulbs can fully ensure safety. Firstly, inferior bulbs have a short lifespan and cannot guarantee stable quality. Secondly, high-quality bulbs provide better light distribution, higher brightness, while inferior bulbs lack brightness, have poor focus, and shorter range. During overtaking, they can cause visual misjudgment for the driver, leading to accidents. 3. Poor-quality lights are not sealed properly and can easily let in water during rain or car washing, causing fog inside the light. In severe cases, this can lead to short circuits and fire hazards. Therefore, when modifying headlights or replacing them due to damage, never consider inferior bulbs.
5
4
Share

What does Hill Descent Control mean?

Hill Descent Control, also known as the slope control system, is primarily designed to maintain a lower vehicle speed on steep downhill roads while ensuring tire traction, allowing the car to safely descend to the flat surface below. Once the Hill Descent Control function is activated, the driver can release all pedals and focus solely on steering. With this function engaged, there's no need for the driver to operate the accelerator or brake pedals. The descent speed is controlled within a range of 20 to 30 kilometers per hour, and the driver can adjust the speed within this range by pressing the accelerator or brake pedals to increase or decrease the downhill speed accordingly.
7
5
Share

How to Check the Motor Vehicle Inspection Compliance Label?

Methods to check the motor vehicle inspection compliance label: 1. If there is no motor vehicle inspection compliance label affixed to the front windshield of the car, it indicates that the vehicle has not been inspected; 2. The motor vehicle inspection label contains information such as the inspection date, vehicle license plate number, engine number, etc. If you do not have the physical vehicle, you can check online through the local traffic police department or visit the vehicle management office. Vehicles that pass the periodic inspection will have a stamp on both the vehicle registration certificate and the periodic inspection form; vehicles that fail the periodic inspection must be repaired within the specified time. If they still fail after the deadline, the vehicle management authority has the right to confiscate the license plate and registration certificate of the non-compliant vehicle, and the vehicle will not be allowed to drive on the road or be transferred to another jurisdiction.
13
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.