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Yesper Battery & Jump Start / Yesper YJS40
Our Boost Max Series jump starters offer an impressive 3000 amps of starting power, designed to jump start both gasoline and diesel engines up to 32 liters. Whether you have a large engine or a smaller one, this unit is built to tackle the most challenging starts.
Experience safe and easy operation with our mistake-proof design. The Boost Max Series features advanced spark-proof technology and reverse polarity protection, ensuring correct connections and preventing sparks. This commitment to safety simplifies the jump starting process, reducing the risk of damage to your battery or device.
Built for the toughest uses, the Boost Max Series is designed to start almost every type of vehicle and equipment, including semi-trucks (up to class 8), motorhomes, coaches, buses, mining, agricultural, construction, and vocational equipment. Additionally, it includes an integrated digital battery voltmeter for enhanced diagnostics and better vehicle maintenance.
Despite the high power output, you won’t trade portability for performance. With a compact and lightweight design, weighing in at just 14 pounds, this jump starter is incredibly maneuverable. The included carrying case further enhances convenience, making it easy to transport and use on-the-go.
This is more than just a jump starter—it also functions as a portable power bank. Keep your smartphones, tablets, and other USB devices charged and ready. The ultra-bright 600-lumen LED flashlight with seven light modes, including emergency strobe and SOS, provides additional utility in various situations.
With the Boost Max Series, every aspect of jump starting and power management is optimized to meet your toughest needs.