AstroAI S8 Ultra Battery Jumper Starter: 4000A Car Jump Starter for Up to 10.0L Gas & 8.0L Diesel Engines

Driven by innovations and our own adventurous spirit, AstroAI was created with the mission to provide the most thrilling experiences possible. Whether you're gearing up for a road trip or an off-road ride, our rugged, high-performance jump starters power you up for all of life's adventures.

To achieve "Power Beyond Compare," the durable S8 Ultra Jump Starter instantly starts fully-drained batteries with its impressive 4000A capacity, making it the perfect companion for every journey.

The AstroAI Jump Starter S8 Ultra is a versatile and powerful jump starter that offers a range of features to keep you prepared for any roadside emergency. This jump starter boasts a massive 4000A current and a 24000 mAh battery capacity, allowing it to jumpstart engines up to 10L gas and 8L diesel, even when the battery is completely drained.

Using the S8 Ultra is effortless, thanks to its smart jumper cables with intuitive indicators that provide a safe and seamless user experience. The jump starter automatically analyzes the battery's voltage and delivers the appropriate boost. For batteries between 9-12V, it will jumpstart them automatically once the jumper cables are connected. If the battery is below 9V, the S8 Ultra will prompt you to press the Boost Button, quickly reviving the completely drained battery.

Designed with your safety in mind, the S8 Ultra car battery jump starter is equipped with 10 comprehensive safety features, including reverse polarity, overcurrent, reverse connection, overvoltage, overcharge, overdischarge, overload, short circuit, low/high-temperature protection, and spark-resistance. It is also waterproof (IP 65), dust-proof, and drop-proof, making it a reliable companion in any weather or terrain.

The versatility of the S8 Ultra doesn't stop at jump starting. Equipped with multiple ports (5V/9V/12V USB-A, 5V/2.4A USB-A, Type-C in/out, and 15V DC), this jump starter can also be used as a powerful power bank, charging a wide range of electronic devices and powering DC car accessories, from car vacuum cleaners to smartphones.

The AstroAI S8 Ultra portable car jump starter is a carefully-crafted device designed to make jump starting vehicles an efficient and safe process. The smart battery indicators ensure ease of use, while its high-quality internals deliver powerful performance.

In addition to its jump starting capabilities, the S8 Ultra also serves as a roadside car emergency kit. The built-in integrated flashlight with three light modes makes nighttime operation easy, ensuring you can depend on this versatile tool in any situation.

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