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Need help choosing the right starter battery?

Lithium or Sodium? We’ll help you decide. Our experts are just a click (or a call) away. Get fast, expert battery advice from a real human.

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This section is under development. If you need product manual, please contact us directly. 

We delivers next-generation vehicle starter batteries using two advanced chemistries:

Lithium Iron Phosphate (LiFePO4) – designed for high power, long cycle life, cold-climate reliability, and smart monitoring for heavy-duty vehicles such as 24V trucks.

Sodium-Ion (Na+) – a safe, sustainable chemistry engineered for stable performance across wide temperatures, ideal for 12V passenger vehicles.

These batteries provide strong cranking power, extended lifespan, and smart BMS protection, making them maintenance-free and suitable for modern vehicle needs.

This section is under development. If you need a specification sheet, please contact us directly.

Feature Category24V LiFePO4 Series (e.g., CBL24280)12V Sodium-Ion Series (e.g., CBN1230)
ChemistryLithium Iron Phosphate (LiFePO4)Sodium-Ion (Na+)
Cold-Climate PerformanceSelf-heating system enables charging in freezing temperaturesOperates reliably from -40℃ to 80℃ with stable starting capability
Cranking PerformanceHigh cranking power for heavy-duty trucks in extreme climatesHigh peak current for passenger vehicle engine starting
LifespanUp to 10× longer cycle life than lead-acid batteriesLong cycle life with stable performance in harsh conditions
SustainabilityNon-toxic and thermally stable chemistryMade from abundant sodium resources; environmentally friendly
Smart MonitoringBluetooth BMS with SOC, voltage, current, and temperature dataSame Bluetooth-enabled monitoring and diagnostic functions
Idle-Free OperationSupports cab electronics and parking A/C without engine idlingN/A
Thermal SafetyOperating range: -20℃ to 60℃Operating range: -20℃ to 80℃

This section is under development. If you need a specification sheet, please contact us directly.

This section is under development. If you need a user manual, please contact us directly.

This section is under development. If you need warranty information, please contact us directly.

Frequently Asked Questions

Need more help? Browse the common technical questions below or contact us directly.

General questions

What are LiFePO4 (Lithium Iron Phosphate) Batteries?

LiFePO4 (Lithium Iron Phosphate) batteries are rechargeable lithium-ion batteries known for safety, longevity, and reliability. They use iron phosphate as the cathode material, delivering stable 3.2V power with minimal self-discharge. With 3,000-5,000+ charge cycles and 95%+ efficiency, they’re widely used in solar energy storage, RVs, marine applications, and backup power systems where long lifespan and deep discharge capability matter most.

A dual-purpose truck battery serves two critical functions: delivering high cranking power to start heavy-duty diesel engines and providing continuous power for parking air conditioners during rest periods.

It can reliably start motorcycles with engines up to 1000CC, providing strong cranking power even in cold conditions.

The difference between lead-acid and LiFePO₄ batteries lies in performance and efficiency: lead-acid batteries are affordable and reliable, while LiFePO₄ batteries are lightweight, durable, and long-lasting, offering higher efficiency, deeper discharge, and thousands of stable cycles.

For small portable generators, a compact 12.8V/1Ah (12.8Wh) starting battery is sufficient. This lightweight model weighs only 0.3kg with dimensions of 32x56x92mm, making it ideal for space-constrained applications. 

Battery maintenance

How should I install a LiFePO₄ battery safely in my vehicle?

When installing a LiFePO₄ battery, pay attention to the placement:

  • Keep it at least 1 meter away from the exhaust pipe or other heat sources.

  • If part of the battery is near a hot exhaust, install a heat shield to prevent overheating.

  • CARKU LiFePO₄ batteries include over-temperature protection, but prolonged exposure to high heat can still shorten battery life.

Tip: Proper installation not only ensures safety but also helps maintain the battery’s longevity.

To keep your LiFePO₄ battery in good condition:

  • Regularly inspect the battery’s exterior for any visible damage or abnormalities.
  • Check all connections to ensure they are tight and free of corrosion.
  • Do not attempt to open or repair the battery yourself. If you encounter any issues, contact the manufacturer’s after-sales support for professional assistance.

Tip: Routine checks help prevent damage, maintain battery performance, and ensure safe operation.

To preserve your LiFePO₄ battery during non-use periods, follow these guidelines:

  • Charge level: Store the battery at 50–70% state of charge, not fully charged or fully discharged.
  • Environment: Keep the battery in a cool, dry place. Avoid high temperatures (>40°C) or freezing conditions.
  • Periodic check: If storing for several months, check the battery every 3–6 months and recharge to 50–70% if needed.
  • Safety: Ensure the battery is disconnected from the vehicle and terminals are protected from short circuits.

Tip: High temperatures during storage can accelerate aging, while very low temperatures may temporarily reduce capacity. Following these steps helps maintain battery life through the offseason.

General questions

Can you use a Na+ starting battery in a car?

Yes. Sodium (Na⁺) batteries provide strong cranking current, making them an excellent choice for starting gasoline or diesel vehicles.

  • Performance: Na⁺ batteries offer reliable starting power, long cycle life, and stable performance across a wide temperature range.
  • Compatibility: Suitable for most cars, including small to mid-size engines, and can handle frequent starts.
    Safety & Protection: Built-in battery management systems (BMS) protect against overcurrent, over-discharge, and overheating.
  • Maintenance Tips: Avoid deep discharge for extended periods to maintain battery life, and ensure proper installation away from heat sources.

Na⁺ starting batteries offer several key advantages:

  • Abundant and eco-friendly materials: Sodium-based chemistry is sustainable and reduces environmental impact.

  • High cranking power in extreme temperatures: They can reliably start vehicles in very hot or cold conditions.

  • Long cycle life: Designed for up to 3,000 charge-discharge cycles, ensuring years of dependable performance.

Tip: These features make Na⁺ batteries a reliable and long-lasting alternative to traditional lead-acid starting batteries for passenger cars.

Sodium (Na⁺) batteries are ideal for vehicle starting, even in extreme temperatures. LiFePO₄ batteries support starting and energy storage, are lightweight, long-lasting, and more cost-effective than lead-acid.

Sodium-ion batteries use abundant sodium-based materials to store energy, offering stable performance from -20°C to 60°C, excellent thermal safety, and a long cycle life. They are cost-effective alternatives to lithium-ion, ideal for stationary storage, backup power, and grid-scale applications, and can integrate with vehicle electronics, parking air conditioning, and onboard inverters to efficiently power passenger cars and commercial trucks.

General questions

Can you run a 75W portable refridgerator with a pure sine wave power inverter?

Yes. A 230Ah 24V LiFePO₄ starting battery paired with a 2200W pure sine wave inverter can easily power a 75W portable refrigerator. The inverter converts the battery’s DC power into stable AC electricity, allowing your appliance to run safely and efficiently on the road or when parked.

A car inverter converts your vehicle’s DC power into standard AC electricity, allowing you to run home appliances on the road. When used with a lithium battery, the inverter can provide the battery’s stored energy to power devices such as laptops, power tools, and kitchen appliances. 

A pure sine wave inverter produces a smooth, clean sine wave just like household electricity, making it safe and compatible with most appliances, including car fridges, rice cookers, fans, and sensitive electronics. In contrast, a modified sine wave inverter outputs a rough, stepped waveform that may work for simple devices like heaters or incandescent bulbs but can cause noise, unstable operation, lower efficiency, overheating, or even damage to more advanced appliances.

A power inverter is essential because it safely converts the LiFePO₄ battery’s DC power into AC electricity, allowing you to run sensitive appliances while maximizing energy efficiency and ensuring stable, reliable, and compatible power for all your devices.

Tip: Pairing a high-capacity LiFePO₄ battery with a properly rated inverter lets you efficiently power multiple devices on the road or off-grid without risking equipment damage.

General questions

What is the dc parking air conditioning?

DC parking air conditioning is a battery-powered cooling system that operates without running the engine, allowing drivers to stay comfortable during rest periods.

Yes, a properly sized LiFePO₄ battery (typically 200–400Ah) can efficiently power a truck’s parking air conditioner for 8–10 hours. This setup saves fuel, reduces engine wear, and provides quiet, comfortable cabin temperatures during rest periods, making it ideal for long-haul truckers who need overnight comfort without idling the engine.

Yes, using a LiFePO₄ battery to power a parking air conditioner is cost-effective and efficient. It eliminates 8–10 hours of engine idling, saving significant fuel, reduces engine wear, ensures quiet and consistent cooling, and helps comply with anti-idling regulations. For long-haul truckers, this setup improves overnight comfort while cutting operating costs and maintenance needs.

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