--- product_id: 603019605 title: "S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable" brand: "astroai" price: "$196.47" currency: USD in_stock: true reviews_count: 13 category: "Astro Ai" url: https://www.desertcart.us/products/603019605-s8-ultra-4000a-car-jump-starter-jump-box-up-to store_origin: US region: United States of America --- # 4000A peak current 16000mAh lithium-polymer battery USB & Type-C fast charging ports S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable **Brand:** astroai **Price:** $196.47 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your peace of mind — jumpstart, charge, and conquer the road! ## Quick Answers - **What is this?** S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable by astroai - **How much does it cost?** $196.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/603019605-s8-ultra-4000a-car-jump-starter-jump-box-up-to) ## Best For - astroai enthusiasts ## Why This Product - Trusted astroai brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged & Ready:** IP65 waterproof, dust-proof, and drop-resistant design built for any roadside emergency. - • **Unmatched Power Boost:** 4000A peak current jump-starts gas & diesel engines up to 12L effortlessly. - • **Multi-Device Power Hub:** High-capacity 16,000mAh battery doubles as a fast-charging power bank for all your devices. - • **Smart & Safe Operation:** 10-layer safety system with auto voltage detection and reverse polarity protection. - • **Built-in 3-Mode LED Flashlight:** Illuminate your night-time roadside rescues with versatile lighting modes. ## Overview The AstroAI S8 Ultra is a compact yet ultra-powerful 4000A car jump starter designed for all gas engines and diesel engines up to 12L. Featuring a robust 16,000mAh lithium-polymer battery, it doubles as a portable power bank with USB and Type-C fast charging ports. Engineered with 10 comprehensive safety protections and an IP65-rated rugged design, it ensures reliable, safe roadside assistance. Its integrated 3-mode LED flashlight adds essential visibility for night emergencies, making it the ultimate all-in-one vehicle recovery and power solution for professionals on the go. ## Description Product description SPECIFICATION Review: Highly recommended - Excellent now and the charge lasts a long time I can start many vehicles I recommend it 10 out of 10 Review: Works great at low price - This booster works great have jump started anything from a lawn tractor to pick up truck fast shipping great price good quality fast shipping ## Features - ULTRA POWERFUL JUMP STARTING: The S8 Ultra jump starter delivers a powerful 4000A peak current and 45C discharge rate. This superior power reliably jump-starts all gas and up to 12L diesel engines, even when the battery is fully drained. - EASY TO USE: This car jump starter includes smart jumper cables with intuitive indicators, providing a safe and seamless user experience. The car starter automatically analyzes the battery’s voltage to deliver the appropriate boost. For batteries at 9-12 V, it will automatically jumpstart them after the jumper cable is connected. When the batteries are below 9 V, the S8 Ultra will prompt you to press the Boost Button, quickly jump starting fully-drained batteries. - SUPERSAFE 12V JUMP BOX: The S8 Ultra car battery jump starter provides 10 comprehensive safeties, 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. - WIDE COMPATIBILITY PORTABLE CHARGER: Featuring multiple ports, this jump starter doubles as a powerful portable charger for your devices. Keep your phones, tablets, and drones powered on the road with the S8 Ultra. (Wall charger not included.) - CAREFULLY-CRAFTED DESIGNS: This jump starter is precision-engineered to make vehicle recovery both safe and efficient. Its intuitive battery indicators simplify operation, while high-grade internal components guarantee powerful, reliable performance every time. - ROADSIDE CAR EMERGENCY KIT: The AstroAI S8 Ultra portable car jump starter can pack a punch, reviving cars in less than a minute, using as a safe and reliable tool to help you take risks. A built-in integrated flashlight can makes nighttime operation easy with its 3 light modes. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CB3W9FRD | | Amperage | 4000 Amps | | Battery Capacity | 16000 Milliamp Hours | | Battery Cell Composition | Lithium Polymer | | Battery Type | Lithium Polymer | | Best Sellers Rank | #127 in Automotive ( See Top 100 in Automotive ) #2 in Jump Starters | | Brand | AstroAI | | Brand Name | AstroAI | | Compatible with Vehicle Type | All of the above | | Customer Reviews | 4.7 out of 5 stars 1,230 Reviews | | Item Dimensions D x W x H | 5.24"D x 10.31"W x 4.29"H | | Item Weight | 1.8 Pounds | | Manufacturer | AstroAI | | Manufacturer Part Number | S8 Ultra | | Manufacturer Warranty Description | 24MONTHS | | Model Number | S8 Ultra | | Peak Output Current | 4000 Amps | | Product Dimensions | 5.24"D x 10.31"W x 4.29"H | | Specification Met | IP65 | | Vehicle Service Type | All of the above | | Voltage | 12 Volts | ## Product Details - **Battery Cell Composition:** Lithium Polymer - **Brand:** AstroAI - **Product Dimensions:** 5.24"D x 10.31"W x 4.29"H - **Vehicle Service Type:** All of the above - **Voltage:** 12 Volts ## Images ![S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable - Image 1](https://m.media-amazon.com/images/I/71T91pJMzZL.jpg) ![S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable - Image 2](https://m.media-amazon.com/images/I/71mL5EamyUL.jpg) ![S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable - Image 3](https://m.media-amazon.com/images/I/71TwW-wcPBL.jpg) ![S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable - Image 4](https://m.media-amazon.com/images/I/81w0yFGbIXL.jpg) ![S8 Ultra 4000A Car Jump Starter, Jump Box up to All Gas Engines & 12L Diesel, 12V Portable Power Bank with USB/Type-C Ports, 3 Modes LED Flashlight, Auto Battery Booster with Jumper Cable - Image 5](https://m.media-amazon.com/images/I/91Qxggny1VL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Highly recommended *by M***S on May 14, 2026* Excellent now and the charge lasts a long time I can start many vehicles I recommend it 10 out of 10 ### ⭐⭐⭐⭐⭐ Works great at low price *by M***S on April 12, 2026* This booster works great have jump started anything from a lawn tractor to pick up truck fast shipping great price good quality fast shipping ### ⭐⭐⭐⭐⭐ Fantastic Charger *by S***E on April 27, 2026* Works great! Jumped a neighbor’s dead battery quickly. Just make sure it’s charged and ready. ## Frequently Bought Together - AstroAI S8 Ultra 4000A Jump Starter, 24000mAh Car Starter(All Gas, Up to 12L Diesel Engine), 12V Auto Battery Booster Pack, Jump Box with USB Quick Charge and DC/Type C Port, LED Light, Jumper Cable - Worx 4V Electric Screwdriver, Rechargeable Cordless Power Screwdriver Set with 6 Bits, Screw Holder, Charger - WX255L - The Ryker Roll Up Tool Bag Organizer Gifts for Dad. Heavy Duty Motorcycle Tool Roll Bag Organizer. Portable Rollup Toolbag w/Detachable Pouches - Tools Bags Mens gifts for him - Mechanic & Electrician --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/603019605-s8-ultra-4000a-car-jump-starter-jump-box-up-to](https://www.desertcart.us/products/603019605-s8-ultra-4000a-car-jump-starter-jump-box-up-to) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*