What is the normal voltage difference for new energy vehicle batteries?

1 Answers
OTaylor
07/29/25 11:54am
The voltage difference within the same battery pack should be around 0.5 volts. If it exceeds 0.5 volts, it indicates an issue with the battery cell showing the lowest voltage. The normal voltage ranges for automotive batteries are as follows: 1. For 12V systems: The no-load battery voltage should be around 13 volts, and the load voltage should not be lower than 11 volts to be considered normal. If it falls below this level, starting difficulties may occur. 2. For 24V systems: The no-load battery voltage should be around 26 volts, and the load voltage should not be lower than 22 volts to be considered normal. If it falls below this level, starting difficulties may occur. 3. For charging voltage: In 12V systems, the generator output voltage should be between 13.5-14.5 volts when charging begins. For 24V systems, it should be between 27-29 volts.
Was this review help?
9
1
Share
More Forum Discussions

What kind of car is the Volkswagen Arteon?

Arteon is Volkswagen's latest five-door designed sports car, officially released on March 7, 2017, as the successor to the Volkswagen CC. This model is currently not available in the Chinese market. Exterior of the Arteon: This car is considered the most visually appealing model in Volkswagen's lineup and is often referred to as the most beautiful Volkswagen car. Interior of the Arteon: The vehicle does not feature significant changes in its interior, maintaining Volkswagen's traditional design style. However, it boasts substantial upgrades in terms of configuration, such as the latest generation of driver assistance systems.
19
4
Share

What are the differences between Honda XR-V and T-Cross?

The differences between Honda XR-V and T-Cross are as follows: Different body dimensions: The body dimensions of Honda XR-V are 4328mm, 1772mm, 1610mm; the body dimensions of T-Cross are 4218mm, 1760mm, 1599mm. Different transmissions: Honda XR-V has a 6-speed manual transmission; T-Cross has a 5-speed manual transmission. Different appearances: Honda XR-V is a car produced by Dongfeng Honda, featuring a sporty and personalized exterior, finely crafted interior, and vibrant colors. With Honda's MM concept, it offers a spacious and comfortable cabin that surpasses other SUVs in its class; T-Cross has a dynamic appearance that appeals to young people, inheriting the design language of SAIC Volkswagen SUVs. Its 2651mm wheelbase provides ample rear legroom, delivering an experience beyond its class.
15
0
Share

What are the reasons for the A4L engine warning light coming on?

Sensor malfunctions, engine misfires, car maintenance issues, fuel quality problems, poor combustion of the air-fuel mixture, engine intake issues, turbocharging problems, exhaust system faults, and anti-theft system malfunctions are all primary reasons for the engine warning light to illuminate. Additionally, during vehicle startup, the car performs a self-check on the engine system. Normally, the engine warning light should turn off after the self-check is completed. If it remains on for an extended period, it is advisable to visit a repair station promptly for professional assistance to diagnose and eliminate potential safety hazards. Below is a detailed explanation of each type of fault: Sensor Issues: Sensors include those for coolant temperature, crankshaft position, air flow, intake temperature, oxygen levels, etc. When these sensors are damaged, have poor connections, or experience signal interruptions, the vehicle's ECU cannot accurately obtain engine data, leading to the illumination of the engine warning light. Solution: If such issues arise, promptly visit a repair center for professional diagnosis and to eliminate safety hazards. Maintenance Issues: Poor engine maintenance is the most common cause of the engine warning light turning on. Vehicles have specific maintenance schedules, and failure to adhere to them, combined with poor driving habits, can increase the engine's operational burden, eventually triggering the engine warning light to alert the owner of a fault. Solution: Follow the maintenance schedule outlined in the vehicle's manual, including time or mileage intervals, to ensure comprehensive maintenance and eliminate non-maintenance-related issues. Fuel Quality Issues: This refers to both fuel and engine oil. The fuel used in cars typically has a specific octane rating, and engine oil can be semi-synthetic or fully synthetic. Manufacturers usually recommend specific fuel grades and oil types. If the owner fails to use the recommended products over time, it can lead to engine wear and trigger the warning light. Solution: Use the appropriate fuel grade and engine oil as specified for the vehicle. Poor Combustion of Air-Fuel Mixture: Faulty spark plugs, fuel pump issues, or clogged fuel lines can lead to poor combustion of the air-fuel mixture in the engine. This results in engine carbon buildup or knocking, which the oxygen sensors detect and report to the ECU, prompting the warning light to illuminate. Solution: Inspect the engine's ignition coils and spark plugs; check the performance of relevant sensors such as oxygen sensors (front and rear), coolant temperature sensor, intake temperature sensor, throttle position sensor, air flow meter, and intake manifold pressure sensor. Also, inspect the air filter for contamination—if clogged, it can cause an overly rich mixture, requiring cleaning or replacement (as needed). Check for fuel injector leaks and the performance of the fuel pressure regulator, as malfunctions can also lead to a rich mixture. It is recommended to visit a professional 4S shop to inspect related sensors and the engine control unit. Intake Issues: Engine combustion requires proper air intake, where the air filter plays a critical role. If the car's air filter is dirty or not cleaned regularly, it can affect the intake system, potentially leading to blockages over time. Severe cases can trigger the engine warning light. Solution: Regularly clean or replace the air filter to ensure the intake system functions properly. Turbocharging Issues: Problems with the intake turbocharging system or the turbocharger itself can also cause the engine warning light to illuminate. The most common issue is a damaged turbocharger, accompanied by symptoms such as oil leaks, excessive oil consumption, reduced power, metallic noises, or blue/black smoke from the exhaust. Solution: Visit a 4S shop to inspect and replace the turbocharger. Often, repairs are not cost-effective, and replacing the component is the better option. Exhaust System Issues: Faults in the rear oxygen sensor, catalytic converter, exhaust camshaft, or bearings can trigger the warning light. The most common issue is a malfunctioning catalytic converter, which can be caused by physical damage or fuel system faults. Solution: Use lead- or silicon-based lubricants to maintain and clean the catalytic converter. Anti-Theft System: If the car's electronic anti-theft system malfunctions or if the anti-theft controller is incompatible with the engine control unit, the engine may not operate correctly, and the warning light will illuminate. Solution: Visit a professional repair shop for a systematic diagnosis, as this issue typically requires professional intervention.
2
1
Share

What is the Kia Cross?

The Kia Cross is Kia's first crossover compact car, derived from the Kia K2 model. Compared to the standard K2, it features changes in body dimensions and ground clearance, with a ground clearance of 175mm, making it resemble a compact SUV more closely. Exterior of the Kia Cross: The front fascia design is nearly identical to the K2, featuring the brand's signature tiger-nose grille in a slender form, though with a more subdued presence. Crossover Features: As a crossover model, it comes with roof rails and black plastic body cladding. The dual-tone mirrors are rounded and compact, integrating LED turn signals and offering electric adjustment and heating functions.
6
5
Share

Where are Toyota engines manufactured?

Toyota engines include domestically produced engines, those manufactured by Toyota itself, as well as engines sourced from other brands. The specific model determines which type is used. Domestic models: Most domestic models are produced by GAC Toyota Engine Co., Ltd. and Tianjin Toyota Engine Co., Ltd. Imported models: Engines for imported models may be manufactured in Japan, Southeast Asia, or the United States. Toyota also utilizes engines from other companies, such as those produced by Yamaha. The most famous example is the Toyota AE86, which uses an engine manufactured by Yamaha.
5
1
Share

What is the fuel consumption of Wuling Hongguang?

The fuel consumption of Wuling Hongguang is 6.5-6.7L/100KM. The currently available Wuling Hongguang models include the 2021 1.5L S Basic LAR, 2021 1.5L Modified S Basic LAR, 2021 1.5L S Basic Enclosed Van LAR, 2021 1.5L Modified S Basic Enclosed Van LAR, 2021 1.5L S Standard LAR, 2021 1.5L Modified S Standard LAR, 2021 1.5L S Comfort LAR, 2021 1.5L Modified S Comfort LAR, 2020 1.2L S Basic National V ILSI, and 2020 1.2L S Basic Enclosed Van National V ILSI. In the same class, the Dongfeng Xiaokang K05S 2019 1.2L Utility National VI DK12 has a combined fuel consumption of 6.2L/100KM, while the Foton Gratour ix5 2018 1.2L Utility G03 has a combined fuel consumption of 6.4L/100KM. Factors affecting vehicle fuel consumption: Driving habits: Aggressive driving, such as sudden acceleration, frequent overtaking, and not easing off the throttle before a red light, increases fuel consumption. Vehicle itself: Vehicles with larger displacements generally consume more fuel than those with smaller displacements because larger displacements usually mean greater power, requiring more gasoline for combustion. Heavier vehicles also consume more fuel because greater weight demands more driving torque.
14
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.