We value your privacy.
By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing
efforts.
Cookie Setting RefuseAccept All Cookies
Recently, the CARKU R&D team embarked on a journey northward, conducting tests with the Heavy Duty 12V & 24V Jump Starter and the Heavy Truck Starting & Energy Storage Battery. They traveled through Nanchang, Zhengzhou, Shanxi, Baotou, and finally arrived in Hulunbuir City.
To ensure the effectiveness of the extreme cold testing, the R&D team specifically chose Hailar District in Inner Mongolia as the location for the low-temperature tests. Hailar District is located in the northwest of Hulunbuir League and experiences a significant drop in temperature due to cold air. The lowest temperature reached -39°C, creating a natural test environment for the heavy-duty jump starter series while also increasing the challenge for the testing team and the products being tested.
In the winter in northern regions, cars failing to start is a common occurrence. As the temperature drops, the charging and discharging capacity of batteries decreases significantly. When the temperature is too low, the battery's released current may not meet the required starting amount, resulting in difficulties in starting the vehicle.
In this testing, the R&D team provided free rescue assistance to various types of 24V trucks and cargo vehicles.
The main testing content included the starting performance of heavy-duty jump starters with different capacities in low-temperature conditions, the energy requirements for starting different types of trucks, and the performance of key components. Parameters such as the number of starts, peak current during startup, and average current during startup were measured.
The test results showed that both the Heavy Duty 12V & 24V Jump Starter and the Heavy Truck Starting & Energy Storage Battery performed well at temperatures close to -40°C. Despite the harsh weather conditions and extreme cold, making it difficult for engines to warm up, the products maintained stable power supply, successfully starting the vehicles continuously. This performance gained recognition from numerous truck owners, proving the quality of CARKU jump starters with actual data and experiences.
This testing involved a long journey of 5,000 kilometers, lasting for 13 days, and endured temperatures ranging from 20°C to -35°C, facing various weather challenges. It was successfully completed, fully demonstrating the strong R&D capabilities of CARKU products and laying a solid foundation for creating better products. We will also learn from the experience and customer feedback to provide customers with even better products and services.
JS617N Heavy Duty Sodium-Ion Jump Starter 4000A Peak – Starts 6.6L Gas Trucks & Commercial Vehicles – Works at -40°C – Portable Emergency Car Battery Booster with LED Flashlight
● 4000A PEAK POWER FOR HEAVY-DUTY VEHICLES – Engineered for 6.6L gasoline trucks, SUVs, and commercial vehicles, the JS617N delivers an instant 4000A surge to get you back on the road in seconds.
● SODIUM-ION TECHNOLOGY BUILT FOR EXTREME COLD – Advanced sodium-ion (Na⁺) technology: less dependent on scarce lithium and lead resources, built for a sustainable future.
● OEM/ODM JUMP STARTER AVAILABLE — Need a custom solution? Contact us for your exclusive quote today.
A reliable all-in-one tyre inflator jump starter does more than just inflate tyres. It restores proper tyre pressure in minutes and delivers instant emergency starting power when your car battery lets you down.
It also features three lighting modes — SOS, Strobe, and Flashlight — making it ideal for outdoor use and nighttime emergencies. Compact enough to fit in your bag, this portable jump starter also functions as a mobile power bank, allowing you to charge your electronic devices anytime, anywhere.
Looking for Jump Starter ODM/OEM solutions? Contact us today for your exclusive quote.
Powered by advanced capacitor technology, the JS629 is a super-capacitor jump starter engineered for instant response and extreme durability. Unlike a traditional lithium-ion jump starter, this batteryless jump starter contains no internal lithium battery—eliminating the need for pre-charging or long-term battery maintenance.
As a true ultra-capacitor jump starter, it draws residual power directly from your vehicle’s weak battery and amplifies it to deliver a powerful 1200A peak current—getting you back on the road within minutes.
(Looking for Jump Starter ODM/OEM Solutions? Contact us for your exclusive quote today!)

Building A, Qixing Creative Square,
Lianrun Rd., Gaofeng Community,
Dalang Street, Longhua District,
Shenzhen,Guangdong,China

WhatsApp