For car owners worldwide, replacing a vehicle battery has long meant a strenuous physical challenge: traditional lead-acid batteries weighing over a dozen kilograms often require two people or professional assistance to install, while their tendency to fail in extreme temperatures remains a persistent reliability concern. Addressing this industry-wide pain point, Carku Technology officially launches its groundbreaking sodium-ion automotive starting battery, delivering unprecedented convenience through revolutionary lightweight design and intelligent connectivity features.
From Heavy Lead-Acid Batteries to Lightweight Sodium-Ion Batteries
The breakthrough of CARKU’s sodium-ion battery lies in its revolutionary material application. The new Model CBN50-L6/H9 weighs only 7.9kg – less than half the weight of equivalent lead-acid batteries – while featuring robust metal construction for enhanced durability. In practical demonstrations, users can effortlessly lift and install the battery with one hand, eliminating the need for collaborative effort or specialized tools. This dramatic weight reduction not only simplifies the installation process but empowers users to independently replace batteries during emergencies, breaking free from dependence on professional roadside assistance.
Technical specifications demonstrate the CBN50-L6/H9 sodium-ion car battery superior performance:
- Dimensions: 394*180*190mm
- Weight: 7.9kg (compared to 15 kg for traditional 105-110Ah lead-acid batteries)
- Capacity: 12V/50Ah (equivalent to 105-110Ah lead-acid)
- Peak Current: 1500A
- Operating Temperature: -40℃ to 80℃
Intelligent Connectivity for Battery Status Monitoring
Beyond physical upgrades, CARKU integrates advanced IoT technology into the product design. Through the dedicated CARKU Battery APP, available in English, Russian, and Vietnamese, users can monitor critical data including battery health status, remaining charge, and starting performance in real time. The system proactively pushes alert notifications when abnormalities are detected, enabling users to schedule maintenance in advance and avoid breakdown risks from sudden battery failure.
The installation process exemplifies user-friendly design: simply prepare a wrench, disconnect the old lead-acid battery (such as a 105Ah Varta unit), and replace it with the compact 50Ah CARKU sodium-ion battery. Connecting via Bluetooth, the app guides users through five straightforward steps:
- Register an account
- Log in to your account
- Connect Bluetooth and pair with the battery
- Access the battery home page to check battery level and status in real time
- View account information page displaying energy consumption metrics
The app’s comprehensive dashboard shows detailed usage statistics – such as the number of engine starts (424 times in demonstration scenarios) and full discharge cycles (30 times) – alongside real-time energy consumption readings (9.5 amps). Additional features include one-touch jump start capability and intelligent battery protection systems.
Why to Choose Sodium-Ion Battery Over Lead-acid Battery?
CARKU’s sodium-ion battery has demonstrated exceptional environmental adaptability through large-scale deployment across Russia and other severely cold regions. Field testing confirms stable engine starting capability even at -40℃, solving the performance degradation issues that plague lead-acid batteries in harsh winter climates. Backed by a 5-year warranty, the product provides long-term coverage and reflects CARKU’s commitment to product reliability throughout its service life.
As a pioneer in the global automotive emergency starting power sector since 2011, Carku Technology has consistently applied cutting-edge lithium battery technology to vehicle starting solutions. This sodium-ion battery launch represents not only a significant upgrade to our product portfolio, but also a strategic step toward embracing the industry’s shift toward more sustainable battery technologies and aligning with ESGC requirements.
About Carkubattery
Carkubattery is a sub-brand of CARKU Technology, focusing on starting battery solutions.
Our sodium-ion starting batteries are manufactured at two production facilities and have obtained certifications including FCC, CE, RoHS, UL, and UN38.3. CARKU Technology has 852 patents, supporting our product development and LiFePO4 and sodium-ion battery technology.
We are currently expanding our global distribution network and looking for partners in different markets.




