AstroAI S8 Ultra 4000A Car Jump Starter Jump Box up to All Gas Engines 12L Diesel 12V Portable

Product description Previous page Next page SPECIFICATION Vehicle Service Type Passenger Car, ATV, SUV, Van, Motorcycle, Truck, Watercraft, Tractor, Trailer, RV or tractor, Lawnmowers, Snowmobiles and more Starts For Up to all Gas/12L Diesel Engines Powerhouse Keep your devices charged on the go Long Lasting Power 24-month standby time when the battery is fully charged Built Tough and Rugged Protective Case- Waterproof, Dust-Proof，Drop-proof Built-in Flashlight The built-in flashlight with 3 modes is perfect for nighttime emergencies SuperSafe 10 Protection and Patented Technology Peak Current 4000Amps Two-Way charging 3 output ports and1 input port Starting Voltage 12V Recharge Method Recharge it with a USB-C cable and wall/car charger. *wall/car charger not included

Highlights: 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.

How it fits your day: Use the key specs and highlights above to match it to your setup, space, or routine before you check out.

Customer feedback: 4.7/5 average rating.

Customers say: Customers find the jump starter works effectively, starting cars on the first try, and appreciate its quick 100% charging capability.

Review snippets: My car was completely dead, and my buddy came with this and started it right up.. so I had to buy the exact same one. So when my car died again, I used mine. Started right up. Ended up being / I picked up the AstroAI S8 Ultra 4000A Jump Starter as a backup for my vehicle, and after a few weeks of testing it out, here’s what stood out: Performance: • This thing has serious muscle. I helped a stranded