Description
Introducing the 12V 40Ah/36Ah LiFePO4 Car Starting Battery, a premium energy solution crafted by a leading OEM manufacturer in China. This battery is engineered for automotive applications, providing exceptional performance with a Cold Cranking Amps (CCA) rating of 400A, ensuring reliable starts under all conditions. Ideal for B2B wholesale buyers, this product combines robust power, longevity, and customizable options to meet diverse needs.
Key Features:
- High Power Output: With a rated voltage of 12.8V and a capacity of 40Ah/36Ah, this battery delivers substantial energy for starting vehicles and powering accessories, making it perfect for automotive applications.
- Cold Cranking Amps (CCA): The battery boasts a CCA of ≥400A, ensuring dependable vehicle starts even in extreme weather conditions, which is crucial for users in varying climates.
- Extended Cycle Life: Designed to last over 4000 cycles at 80% Depth of Discharge (DoD), this battery offers durability and cost-effectiveness compared to traditional lead-acid batteries, making it an excellent investment for businesses.
- Wide Operating Temperature Range: It operates efficiently in temperatures ranging from -30°C to 75°C, ensuring reliability and performance in diverse environments.
- Low Self-Discharge Rate: The battery maintains its performance with a self-discharge rate of less than 2% per month, ensuring it’s ready when you need it most.
Product Description:
The 12V 40Ah/36Ah LiFePO4 Car Starting Battery utilizes advanced LiFePO4 technology, ensuring superior safety and performance. With an impressive energy output of approximately 460.8Wh, this battery is engineered specifically for starting vehicles and powering various automotive accessories.
- Efficient Power Management: It supports a maximum continuous charge current of 80A and discharge current of 150A, guaranteeing efficient power delivery when needed most.
- Compact and Lightweight Design: Measuring 260 x 175 x 200 mm and weighing around 5 kg, this battery allows for easy installation in various vehicles without adding unnecessary weight.
- Durable Construction: Constructed from high-quality ABS material, the battery features an IP65 rating, providing protection against dust and water ingress.
- Eco-Friendly Solution: The lithium iron phosphate chemistry is non-toxic and recyclable, promoting sustainable energy practices without compromising performance.
- Customizable Options Available: For OEM/ODM clients, we offer extensive customization options including terminal configurations and additional features like Bluetooth monitoring.
Investing in the 12V 40Ah/36Ah LiFePO4 Car Starting Battery not only provides a reliable power source but also supports sustainability efforts with its long lifespan and eco-friendly design. Choose our battery for an efficient, powerful solution tailored to your automotive needs. Contact us today to explore customization options that meet your specific requirements!
A 12V 40Ah LiFePO4 car starting battery delivers 400A cold cranking amps (CCA) with advanced lithium iron phosphate technology, providing reliable engine starts, long cycle life over 3000 cycles, fast charging, and robust safety features. Its lightweight design and integrated Battery Management System (BMS) ensure efficient, durable, and safe starting power for various vehicles.
What is a 12V 40Ah LiFePO4 Car Starting Battery and How Does It Work?
A 12V 40Ah LiFePO4 battery is a rechargeable lithium iron phosphate battery designed specifically for automotive starting applications. It stores energy by moving lithium ions between electrodes during charge and discharge, delivering stable voltage and high burst current essential for reliable engine ignition.
How Does the 400A Cold Cranking Amps (CCA) Rating Benefit Vehicle Starting?
The 400A CCA rating means the battery can supply 400 amps at 0°F (-18°C) for 30 seconds without dropping below a critical voltage, ensuring dependable engine starts even in cold weather and improving vehicle reliability.
What Are the Key Specifications of a 12V 40Ah LiFePO4 Car Starting Battery?
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Nominal Voltage: 12.8V
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Capacity: 40Ah
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Energy: ~512Wh
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Max Continuous Discharge Current: 150A
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Peak Discharge Current (CCA): 400A
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Cycle Life: Over 3000 cycles at 80% Depth of Discharge (DoD)
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Weight: Approximately 5.3 to 6.6 kg
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Dimensions: Around 197 x 128 x 220 mm
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Protection Rating: IP54 to IP65
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Integrated BMS with protections for overcharge, over-discharge, short circuit, and temperature
How Does LiFePO4 Chemistry Ensure High Power and Long Life?
LiFePO4 chemistry offers superior thermal stability and chemical robustness, reducing risks of overheating and thermal runaway. It supports high discharge rates and maintains capacity over thousands of cycles, delivering consistent, durable power for automotive starting.
What Are the Advantages of Using a 12V 40Ah LiFePO4 Battery Over Lead-Acid Batteries?
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Higher CCA for reliable cold starts
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Up to 5-10 times longer cycle life
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Lighter weight (about one-third of lead-acid)
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Faster charging times
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Lower self-discharge rate (<3% per month)
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Minimal maintenance and no acid spills
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Enhanced safety and environmental friendliness
How Does the Battery Management System (BMS) Protect and Optimize the Battery?
The BMS monitors voltage, current, temperature, and state of charge to prevent overcharging, deep discharge, overheating, and short circuits. It balances cells to maintain uniform performance, extends battery life, and ensures safe operation under various conditions.
How Should You Charge and Maintain a 12V 40Ah LiFePO4 Car Starting Battery?
Charging should follow a constant current/constant voltage (CC/CV) profile with a maximum charge voltage around 14.6V. Maintenance is minimal, involving periodic inspection of terminals and connections, and storage within recommended temperature ranges (-30°C to 75°C).
How Does Temperature Affect the Performance and Lifespan of a 12V 40Ah LiFePO4 Battery?
Performance declines at temperature extremes. Low temperatures increase internal resistance and reduce capacity, while high temperatures accelerate chemical degradation. Optimal performance and longevity occur between 0°C and 45°C.
Can a 12V 40Ah LiFePO4 Battery Be Used in Different Vehicle Types?
Yes, it is suitable for passenger cars, trucks, boats, RVs, and electric vehicles, providing reliable starting power and supporting auxiliary loads.
What Are the Environmental Benefits of Using LiFePO4 Starting Batteries?
LiFePO4 batteries contain no toxic heavy metals, have high recyclability, and longer lifespans, reducing waste and environmental impact compared to lead-acid batteries.
Chart: Performance Comparison of 12V 40Ah LiFePO4 vs Lead-Acid Starting Batteries
| Feature | LiFePO4 Battery | Lead-Acid Battery |
|---|---|---|
| CCA | 400A | 300-400A |
| Cycle Life | >3000 cycles | 300-500 cycles |
| Weight | 5.3-6.6 kg | 12-15 kg |
| Charging Time | Faster (2-4 hours) | Slower (6-8 hours) |
| Maintenance | Minimal | Regular watering needed |
| Safety | High (stable chemistry) | Moderate |
Chart: Key Specifications of 12V 40Ah LiFePO4 Car Starting Battery
| Specification | Value |
|---|---|
| Nominal Voltage | 12.8V |
| Capacity | 40Ah |
| Energy | 512 Wh |
| Max Charge Current | 40-80A |
| Max Discharge Current | 150A |
| Peak Discharge (CCA) | 400A |
| Weight | 5.3-6.6 kg |
| Dimensions (mm) | 197 x 128 x 220 |
| Cycle Life | >3000 cycles |
| Protection Rating | IP54–IP65 |
