Ultra Portable Car Jump Starter

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

The durable S8 Ultra Jump Starter, designed to deliver "Power Beyond Compare," can instantly start fully-drained batteries with its impressive 4000A capacity, making it the perfect companion for every journey. This jump starter boasts a range of features to ensure a seamless and safe user experience.

The S8 Ultra car jumper starter is equipped with a powerful 4000A current and a 24000 mAh battery capacity, along with a 45C discharge rate, allowing it to boost up to 10L gas and 8L diesel engines, even when the batteries are completely drained. The included smart jumper cables with intuitive indicators provide a user-friendly and secure operation, as the car starter automatically analyzes the battery's voltage to deliver the appropriate boost.

For batteries with a voltage between 9-12V, the S8 Ultra will automatically jumpstart them once the jumper cables are connected. For batteries below 9V, the user simply needs to press the Boost Button, and the jump starter will quickly revive the fully-drained batteries.

Designed with safety in mind, the S8 Ultra car battery jump starter offers 10 comprehensive safeguards, 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 and durable companion for any adventure.

The S8 Ultra jump starter is a versatile power bank, equipped with multiple ports (5V/9V/12V output USB-A port, 5V/2.4A output USB-A port, Type-C in/out port, 15V DC port), allowing users to charge various electronic devices and power DC car accessories, from car vacuum cleaners to cellphones.

Carefully crafted with user-friendliness in mind, the jump starter battery pack features smart battery indicators, ensuring ease of use, while its high-quality internals guarantee powerful performance. The built-in integrated flashlight with 3 light modes also makes nighttime operations easier.

The AstroAI S8 Ultra portable car jump starter is a reliable, safe, and powerful tool that can revive cars in less than a minute, making it an essential addition to your roadside emergency kit, ready to help you take on any adventure.

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