Portable Car Starter for All Gas and Diesel Engines

The YESPER high-end talent team, with 10 years of experience in the automatic field, is dedicated to the development of the jump starter. We employ intelligently designed and unique DSLI technology to provide you with a safe, portable, and powerful emergency jump starter.

Our objective is to deliver a product of "High standard, high grade, high efficiency, high brand." Hey, car travel enthusiasts! Don't be desperate - always say "YESPER!"

What is our biggest feature? We can start a dead battery by pressing the BOOST button on the jumper cables. Is the battery capacity real, or is there an exaggeration? We refuse to exaggerate the battery capacity; we offer the real battery capacity.

YESPER YJS SPEED SERIES and YESPER ARMOR SERIES provide a complete range of accessories that are easy to carry and store.

The DSLI IV Intelligent Control Technology, in comparison to previous technologies, has rearranged the battery structure and microcomputer control program, increasing the voltage by 30% to 14.8V and reaching a peak current of 4120A, allowing a 1-second car start. The powerful intelligent temperature control technology also reduces the starting temperature, enabling faster, stronger, and safer starts.

The YJS40 jump starter has a true capacity of 24000mAh (88.88Wh), and we do not exaggerate the battery capacity. It features versatile charging options, including USB (5V/2.4A), USB QC (5/9/12V), and Type-C (5V/3A) input/output ports, as well as a DC (15V/10A) port to power various DC devices like tire inflators, car vacuum cleaners, and car refrigerators.

The LED work light has three modes: Flash Light, Strobe Light, and SOS Light, making it a multipurpose flashlight for camping, outdoor, indoor, and travel use, providing illumination in dark or emergency situations.

The new YJS series jump starters are made of fire-proof ABS material, ensuring sturdiness and durability for adventurous life, with multi-function (rain, dust, and drop resistance) capabilities.

With the YJS40 Car Battery Jump Starter, you'll receive Heavy-Duty Jumper Clamps, a USB to Type-C Cable, a Cigarette Lighter Adapter, a Carrying Case, and a User Manual. Additionally, you'll be covered by an 18-month worry-free warranty and lifetime technical support. Feel free to contact us with any questions.

The maximum jump-starts of a fully charged YJS40 jump starter is 60 times, tested under laboratory conditions to start a 1.5L gas engine. The higher the displacement of your car engine, the more power it consumes during the starting process.

The YESPER YJS40 will be compatible with all gas engines and diesel engines up to 10.0L, as long as your starter battery is a 12V lead-acid type. Even if your car battery is completely dead, you can press the BOOST button, and the jump starter will provide the necessary power to start your vehicle within 30 seconds.

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