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. 

Why Winter Testing Matters: Insights from CARKU Founder,Cloud Lei

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.

Winter Testing Team: Testing Performance & Offering Free Assistance

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.

CARKU Products: Reliable, Durable, and Cold-Resistant

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.