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As 2024 transitions into 2025, CARKU successfully completed its two-week Winter Test Challenge in northern China. The testing team traveled to areas like Hailar, Genhe, and Mohe in Heilongjiang, where temperatures regularly drop below -30°C and sometimes reach -40°C.
Testing CARKU Heavy Duty Jump Starters and Heavy Truck Starting & Energy Storage Batteries, the team confirmed that these products performed excellently, consistently providing stable power and successfully starting trucks even in extreme cold. This success has earned high praise from truck drivers and solidified reputation of CARKU for reliability and quality.
CARKU Founder Cloud Lei emphasized the importance of real-world testing in extreme cold. “Starting heavy trucks in temperatures as low as -40°C is a global challenge,” he said. The winter tests allow the R&D team to engage directly with users, gather valuable feedback, and optimize product design and performance for better market reliability.
Throughout the testing, the team evaluated starter performance, capacity, and key components. They also provided free jump starter services to stranded truck drivers, earning widespread appreciation. This direct interaction with users provided crucial data to improve CARKU products.
Heavy Duty Jump Starter: Smart safety features, portable design, and various models with peak currents of up to 5,000A for extreme cold conditions.
Heavy Truck Starting & Energy Storage Battery: Low-temperature starter capability, long lifespan (8-10 years), and advanced safety features.
12V Starting & Energy Storage Battery: Perfect for small vehicles, offering high cold starter performance, durability, and safety.
Built for demanding vehicles, the JS617N is a heavy duty sodium-ion jump starter delivering 4000A peak current to start 6.6L gasoline trucks, SUVs, and commercial vehicles in seconds. Powered by advanced sodium-ion battery technology, this portable emergency Na⁺ jump starter provides stable starting performance even at -40 °C, making it ideal for trucks operating in extreme winter conditions. Compared with traditional lead-acid jump starters, the heavy duty jump starter sodium-ion series offers longer service life, rapid high-current output, and greater reliability in cold climates. A high-brightness LED flashlight with lighting, strobe, and SOS modes ensures visibility and safety during roadside emergencies.(Looking for Jump Starter ODM/OEM Solutions? Contact us for your exclusive quote today!)
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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

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