How to Solve the Problem When a Car Battery Won't Charge?

1 Answers
FranciscoLynn
07/29/25 10:22am
Check if the battery is lacking electrolyte. If the electrolyte has dried up, first add distilled water. After adding enough, do not cover the battery's filler caps. Find a regular 220-volt incandescent bulb and connect it in series with the battery, then connect it to a 220-volt AC power source at home to see if the bulb can light up normally. If the bulb lights up normally, continue supplying power for about 1 minute before disconnecting. Wait a few minutes, then reconnect for another minute. Repeat the previous step three to five times, then connect the battery to the charger and charge it normally for 15 hours.
Was this review help?
8
3
Share
More Forum Discussions

Where are German Yatu tires produced?

German Yatu tires are domestically produced, with their manufacturing location in China, and they offer good wear resistance. Tires are typically mounted on metal rims to support the vehicle body, cushion external impacts, maintain contact with the road surface, and ensure driving performance. Tires often operate under complex and demanding conditions, enduring various deformations, loads, forces, and extreme temperatures during use. Therefore, they must possess high load-bearing capacity, traction performance, and cushioning ability. Additional details are as follows: German Yatu tire specifications: 1. Model: Tire model markings usually appear as: 215/70R15. The numbers represent: 215 indicates the tire section width in millimeters (mm), typically ranging between 145—285mm in increments of 10mm; 70 is the aspect ratio, representing the ratio of the tire sidewall height to the tire section width, where 70 stands for 70%. Generally, tire aspect ratios range from 30%—80%. Under normal circumstances, standard passenger cars should not use tires with an aspect ratio >75%, while luxury cars and high-performance sports cars are recommended to use tires with an aspect ratio <60%. 2. Meaning: R stands for Radial, indicating the tire has a radial structure, and 15 is the rim diameter in inches. If a tire is marked as: 6.00—12, this indicates it is not a radial tire but a bias-ply tire, which is rarely seen in passenger cars today. Due to their inferior safety, load capacity, and high-speed stability, bias-ply tires are only used in some low-end off-road vehicles and heavy-duty trucks.
4
2
Share

What are the reasons for unstable idle speed in Jetour X90?

Jetour X90 unstable idle speed reasons: Severe engine carbon deposits: When there is excessive carbon buildup inside the engine, the gasoline sprayed by the cold-start injector will be largely absorbed by the carbon deposits, resulting in an excessively lean mixture during cold starts and making it difficult to start. Under these conditions, the engine will only start easily after the carbon deposits have absorbed enough gasoline to become saturated. After starting, the gasoline adsorbed on the carbon deposits will be drawn into the cylinders by the engine's vacuum suction and burned, making the mixture too rich. The combustible mixture in the engine alternates between being too lean and too rich, causing idle speed fluctuations after a cold start. Excessive carbon deposits and dirt in the throttle body and intake passages: Excessive carbon buildup and dirt in the throttle body and surrounding intake passages change the cross-sectional area of the air passages, making it impossible for the control unit to precisely regulate the idle air intake. This results in an excessively rich or lean mixture, leading to abnormal combustion. Weak spark due to faulty spark plugs: Spark plugs can also accumulate carbon deposits, which can be cleaned to restore their performance. However, some spark plugs may be nearing the end of their service life, leading to reduced performance. Weak sparks from spark plugs in individual cylinders can affect the car's performance. Faulty spark plugs can cause the engine to "misfire," but minor faults in individual spark plugs may only cause unstable idle speed. Fuel pressure issues: If the fuel pressure is too low, the fuel sprayed by the injectors will not atomize properly or may spray in a stream rather than a mist. In severe cases, only droplets may be sprayed, reducing the fuel supply and making the mixture too lean. If the fuel pressure is too high, the actual fuel injection volume increases, making the mixture too rich. Various component failures: Leaks in the intake manifold or various valves, fuel pressure issues (too low), ignition system faults, etc., can also cause unstable engine idle speed.
9
1
Share

What are the hazards of parking in P gear without turning off the engine?

Parking in P gear without turning off the engine can damage the transmission and engine. Here is the relevant introduction: 1. P gear: P gear mechanically locks the output shaft of the transmission to secure the car, preventing it from moving. 2. Harm of not turning off the engine: The prolonged contact time between the combustion gas in the cylinder and the cylinder wall increases heat loss, leading to higher fuel consumption in the engine. For gasoline engines, the weaker intake airflow at idle makes it harder for the carburetor to disperse the fuel mist, requiring a richer air-fuel mixture, which may also increase fuel consumption.
7
3
Share

What transmission is paired with the Axela?

Axela is equipped with a 6AT transmission, and older models also feature a 6-speed manual transmission. The AT (automatic transmission) is a gear-shifting device that automatically operates based on the vehicle's speed and engine RPM, as opposed to manual transmissions. AT transmissions are technologically mature and widely used, offering smoother gear shifts compared to dual-clutch transmissions (DCT), along with better reliability and durability. The Axela is a compact sedan launched by Mazda. It measures 4582mm in length, 1795mm in width, and 1458mm in height, with a wheelbase of 2700mm.
4
2
Share

What is the tram car?

tram is a car under the Tesla brand. The following is expanded information about Tesla: 1. Company origin: Tesla is an American electric vehicle and energy company founded in 2003 in Silicon Valley by Martin Eberhard and Marc Tarpenning. It mainly produces and sells electric vehicles, solar panels, and energy storage equipment. The founders named the company "Tesla" in honor of physicist Nikola Tesla. 2. Company value: In June 2021, Kantar released the "2021 Kantar BrandZ Most Valuable Global Brands Ranking," where Tesla ranked 47th with its brand value based on advanced concepts.
18
0
Share

What is the fuel consumption per 100 kilometers for the BMW 3 Series?

BMW 3 Series fuel consumption per 100 kilometers is around 8.5 liters. Car fuel consumption: Generally, the onboard computer provides an average fuel consumption value, which is displayed on the dashboard, but there is usually some discrepancy with the actual fuel consumption. Specific car fuel consumption can be calculated using a formula. Car fuel consumption considerations: Plan your route before driving, check traffic conditions, and try to avoid roads prone to traffic jams. Maintain a steady speed while driving, as unstable driving speeds can increase fuel consumption by about 6% in suburban areas and 2% in urban areas. Avoid carrying unnecessary items in the car to reduce weight and fuel consumption.
2
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.