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⚡ Power up your ride, anytime, anywhere — because dead batteries don’t wait!
The AstroAI S8 Ultra Jump Starter packs a massive 4000A current and 16000mAh battery capacity to jumpstart large gas and diesel engines up to 10L and 8L respectively. Featuring smart jumper cables with automatic voltage detection, it guarantees safe, efficient starts even for fully drained batteries. Built tough with IP65 waterproof, dustproof, and drop-proof protection, it doubles as a versatile power bank with multiple USB and Type-C ports, plus a 3-mode flashlight for night use. Compact yet powerful, it’s the ultimate emergency companion for any vehicle owner.
| ASIN | B0CB3W9FRD |
| Amperage | 4000 Amps |
| Battery Capacity | 16000 Milliamp Hours |
| Battery Type | Lithium Ion |
| Best Sellers Rank | #4,995 in Automotive ( See Top 100 in Automotive ) #28 in Car Battery Jump Starters |
| Brand Name | AstroAI |
| Compatible with Vehicle Type | automotive |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,081) |
| Included Components | Jump Starter |
| Item Dimensions D x W x H | 13.3D x 26.2W x 10.9H centimeters |
| Item Type Name | Jump Starter |
| Item Weight | 812 g |
| Manufacturer | AstroAI |
| Manufacturer Part Number | S8 Ultra |
| Model Number | S8 Ultra |
| Peak Output Current | 4000 Amps |
| Specification Met | IP65 |
| Voltage | 12 Volts |
K**G
It's amazing, jumpstarts many big engines on one go
Not only I bought one, but two of this product, and it's amazing. I bought my first one back in 2023 - 2024 and I play/deal around cars a lot, and this is one of the best products I use, it's small, and charges big engines. I tried this on Hellcats, 6.4 V8, 6.2 Supercharged V8, 5.5 V8, 5.0 Supercharged V8. I once even jumpstarted 5 different cars that were all V8 in one go, and there was still 50 - 75% battery left. Definitely recommended.
A**D
A beast of a jump starter
It effortlessly wake up my completely gone and dead AGM battery, like it's nothing! There is a boost option on the cable itself once pressed it's gonna wake up that battery no matter what, hope it continues with the same performance but so far so good 👌
G**H
Best product
Good
A**R
Excellent, very good quality
Very good Quality. A must have item in your car.
S**L
جهاز استرو الترا يبدو أنه مصنوع من مواد من الدرجه الاولى السعة ٣ أضعاف تقريبا من استرو الاقل سعرا متين وضد الصدمات مدخل يو اس بي سي لشحن الجهاز ومخرج لتشغيل السيارة و مخرجين يو اس بي عادية لشحن الموبايل احداها للشحن السريع وكذلك مخرج ١٢ إلى ١٥ فولت لولاعة سجاير او اي جهاز يعمل بطاقة ١٢ فولت ويستحق الشراء ..
M**D
ممتاز
A**D
Performance
A class of its own. Compared with other Brands this at half price, perform nicely. Worth the money, paid.
M**D
بشكل غير مبالغ فيه جهاز اكثر من ممتاز قام بتشغل سيارة متوقفه منذ قرابه شهر او اكثر بقليل لم اكن اتوقع انه سيقوم بهذا المهمة بهذا الشكل الرائع هذا الجهاز من المهم اقتناءه لانه يساندك وقت الطوارئ انصح بشراءه
I**M
ممتاز آداء وجودة ومتانة ، يشغل السيارة مرتاح.
G**A
Buen producto, entregado a tiempo. Buena calidad.
A**A
This jumper starter is really handy to have. It’s strong enough to start a car without any issues, and the 24000 mAh power bank with QC3.0 keeps phones and other devices charged on the go. Easy to use and feels solid in the hand. Definitely one of those tools you don’t think about until you need it — then you’re glad it’s there.
A**R
This is good value for money. Works well. Can charge a usb item and has a torch. Sturdy and easy to use
M**S
This booster works great have jump started anything from a lawn tractor to pick up truck fast shipping great price good quality fast shipping
Trustpilot
5 days ago
1 month ago