AstroAI S8 Ultra 4000A Car Jump Starter – Jump Box, Portable Power Bank & USB-C
- £181.01
- £181.01
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Free Returns
Description
xMeet the AstroAI S8 Ultra, a high-capacity jump starter designed for real-world road scenarios. With a 4000A peak and a 45°C discharge rate, this jump box reliably revives gas engines and supports engines up to 12L diesel, even when the battery is near empty. Its ability to deliver a strong, steady boost makes it a practical companion for urban commutes, road trips, and fleet maintenance alike.
Powerful, yet Smart
The S8 Ultra blends raw power with intelligent operation. It analyzes the battery voltage and provides the right amount of boost to start the engine smoothly. For deeply drained batteries, a quick press of the Boost Button jump-starts efficiently, reducing guesswork in stressful moments.
- Smart jumper cables assess voltage and apply an appropriate boost automatically.
- Automatic boost options help you start quickly when the battery is low.
Safety, First
- Ten protections include reverse polarity, overcurrent, reverse connection, overvoltage, overcharge, overdischarge, overload, short circuit, and temperature safeguards.
- IP65 waterproof, dust-proof, and drop-proof housing adds reliability in challenging environments.
Power On The Go
- Multiple ports turn the jump starter into a portable charger for USB-C, USB-A, and other devices on the road.
- Keep your phone, tablet, or small gear powered up during long drives or service calls.
Designed for Real-Life Use
Smart battery indicators simplify operation, while a built-in three-mode LED flashlight aids nighttime work. The compact, rugged design makes it easy to stash in a trunk or toolbox for quick access when you need it.
Whether you’re navigating urban traffic, an overnight trip, or a roadside service scenario, the S8 Ultra offers dependable power without complicating the boost. It serves as a practical, non-mandatory option to keep essential devices ready and engines turning, with benefits that feel like possibilities rather than guarantees.
FAQ
Q: What engines can the AstroAI S8 Ultra jump start?
A: It can jump start gasoline engines and up to 12L diesel engines with automatic voltage detection.
Q: Is the S8 Ultra safe for DIY roadside emergencies?
A: Yes. It includes 10 safety protections, smart indicators, and guided boost prompts to help use safely.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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