AstroAI S8 Car Battery Jump Starter, Car Jumper Starter Battery Pack for Up to 6.0L Gas & 3.0L Diesel Engines, 12V Portable Jump Box with 3 Modes Flashlight and Jumper Cable (Orange)
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Availability:
15 left in stock
Arrives
Monday, May 25
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Color: Orange - 1500A (S8)
Features
- HIGH-PERFORMANCE JUMP STARTING - The car jumper starter portable pack has a 45C high-rate lithium battery and 37WH capacity that can start 6.0 L gas/3.0 L diesel engines and other 12 V vehicles like motorcycles, cars, SUVs, pickups, or lawnmowers.This jump starter's powerful 1500 A peak suit current quickly starts low-voltage and fully-drained batteries, stocking stuffers for men and women.
- ULTRA POWERFUL BOOST - The smart boost mode automatically detects the battery's voltage. When the voltage is less than 9 V, the indicator flashes green; this unlocks the "BOOST" button, which can be pressed to start fully-drained batteries.
- QUALITY METAL CALMPS FOR IMPROVED PROTECTION - The safety metal clamps and smart jumper cable better protect the S8 Car Battery Jump Starter from excessive heat damage, loose ports, battery bulging, battery expansion, and more.
- COMPREHENSIVE SAFETY - This portable battery jumper starter has 8 integrated protections including reverse polarity, reverse connection, overcurrent, overvoltage, overload, overcharge, over discharge, and short circuit protection. Ensure your trip is safe and smooth.
- PORTABLE & COMPACT - With an overall size of 7.9*4.5*3.7" and a item weight of 0.95 lbs, it is very easy to store in a car or a travel bag. Compared with bulky lead-acid jump starters, this compact jump starter brings more convenience and peace of mind to your trip.
- 5-IN-1 MULTIFUNCTION - This device functions as a jump starter, portable power bank, and an LED flashlight with 3 modes (flashlight, strobe, SOS). The AstroAI Lithium Battery Jump Starter is your reliable, all-around trip companion here to gear you up for every adventure.
- Additional Tips - Please check the manual for more information before using. Professional Technical Support Team - If you have any questions about the product, feel free to contact us! Our California-based support team will respond within 24 hours.
- TIP FOR WINTER USE - To prevent battery performance issues in cold conditions, please store the jump starter at a proper temperature. Avoid charging or using the jump starter in extreme cold.
Brand: AstroAI
Battery Cell Composition: Lithium Ion
Voltage: 12 Volts (DC)
Product Dimensions: 4.5"D x 7.9"W x 3.7"H
Vehicle Service Type: ATV
Battery Type: Lithium Ion
Voltage: 12 Volts (DC)
Compatible with Vehicle Type: ATV
Battery Capacity: 10000 Milliamp Hours
Amperage: 1500 Amps
Peak Output Current: 1500 Amps
Item Dimensions D x W x H: 4.5"D x 7.9"W x 3.7"H
Item Weight: 719 Grams
Brand Name: AstroAI
Manufacturer Part Number: S8
Manufacturer: AstroAI
Included Components: Cable
Manufacturer Warranty Description: 2 Year Manufacturer
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, May 25
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Orange - 1500A (S8)
The AstroAI S8 Car Battery Jump Starter works great and gives real peace of mind to keep in the car. It’s compact, easy to use, and has plenty of power to start a dead battery quickly. The instructions are simple, and everything feels sturdy and well made. I love not having to rely on another vehicle for a jump anymore. Charged up fast and held the charge well too. Definitely a smart purchase and worth having for emergencies!
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Reviewed in the United States on February 27, 2026 by Pam Cooke
Color: Orange - 1500A (S8)
When I took the AstroAI S8 out of the packaging, I looked at the unit and said to myself "you're kidding me this will never work but whatev's I'll give it a try". Boy was I wrong, this jump starter nails it every time. Early am, I took my dogs to the beach, returned, opened the lift gate, the pups jumped in and that was it, out of nowhere the battery died.....literally nothing was working. Got a jump and was back on the road. Back home, left it over night same thing. Luckily, I thought this would be a good time to buy a jump starter, cause you never know. I'd been toying with it for a while and already have a tire inflator/pressure monitor as a 'just in case'. Honestly, I didn't expect this to happen again but it did. My car is only a few years old, it's a BMW X5 4.0i. The jump charger not only needs to be able to crank & spark the engine but power-up all the monitors/heads-up display/driving/safety/management/seat passenger detectors/climate/level & motion sensors and way more stuff/systems in tandem with cranking the engine. By-Jove....it can do all of it, the car starts without any hesitation. Unfortunately, from a dead battery, the default is for all the electronics to fire up at once, so there's no 'lite start' option. I was really surprised. Useability is a sinch. Plug-in the jumper cables to the AstroAI S8 unit, pop the hood, connect the cables to the vehicle contacts (a tiny green LED by the Boost button start flashing), press the 'Boost' button at the base of the cables, get behind the wheel and start the car. I couldn't tell the difference between the jump start and regular start. It can even start the car with less than 75% charge. I can expect at least 4-5 starts from the device. It charges from a standard USB port (USB A) and when it's fully topped-up it stops charging. I'm not sure if this makes a difference but I should point-out the car was jumped from designated contact points, not the battery. Also, as soon as I press the 'boost' button I can hear the car come to life and go through some sort of boot-up. By the time I get behind the wheel, my key is detected, everything is as normal and start the vehicle. There was an instance whereby the alarm went off, I just hit 'unlock' on the fob and that did the trick. On the downside, the jumper cables seem a little short (I had no problem reaching my car's contact points) and you will have no problems jumping the battery directly. Although, I've see in some vehicles the contact points are more than 18in apart, this will require some sort of extension. As a blanket synopsis: The AstroAI S8 works great, it easily starts a super systems-power hungry vehicle w. a 3.0 inline 6.
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Reviewed in the United States on November 16, 2025 by Fdo Shopper
Color: Orange - 1500A (S8)
Excellent product. Works well, even on partial charge, has saved me many inconvenient/expensive jumps. Had one of these (paid twice as much) 10 years ago that got stolen. This is just as powerful at half the price. Worth having on hand (remember to charge it up fully with summer weather /not using for 3 or more months!), keep in purse or in car. You won't regret it.
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Reviewed in the United States on February 19, 2026 by AZ MT
Color: Orange - 1500A (S8)
Well this thing works. I have GMC Acadia, my car battery has been getting weaker and weaker when I would go to start it in the morning. The colder it gets the worse it got. I figured I try this, charge it up and keep it in my car as I knew my battery life was very limited. Sure enough all I got was clicking, my battery was dead, it was 5 degrees outside. I hooked this up to my battery, was very easy, and so much better than needing another car to jump it. I waited a minute, went to start the car and got nothing. I was nervous at this point that it didn’t work. I readjusted the positive cable as it just looked off and tried it again. The car started right up !!! I was so glad I thought ahead and got this thing. This charger is great, small enough to fit in my glove box if need. Great design and packs some power to start a pretty much completely dead battery. 5 stars for this one.
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Reviewed in the United States on January 20, 2026 by John
Color: Orange - 1500A (S8)
Haven't tried it on a car engine - yet, but it jump started a generator. UPDATE: 3/9/2026 Originally gave it a 5 Star review, it now has a very generous 1 Star review. Good for one jump on a very small 12 volt battery. In one "Jump" it will fail. Can't even jump start a small 12volt generator battery. Can't charge the AstorAI, light won't go on. What a POS! It wasn't even in the car where temperatures can be extreme. It was always at room temperature between 65F degrees - 76F degrees. Look elsewhere. If you purchased this within the last 30 days from Amazon - return it. Update on the Update: 3/16/2026 Although the Jump Starter that I received had a problem the seller has stellar customer service. It doesn't get any better than that. So originally the rating was 5 stars, with the "problem" it went down to a 1 Star, however the seller's excellent customer service brings it to 4 stars
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Reviewed in the United States on February 20, 2026 by JohnnyCaps
Color: Orange - 1500A (S8)
I bought the AstroAI S8 as a "just in case" tool, and it has already paid for itself. I had a completely dead battery on my 5.0L V8, and this little orange box jumped it on the very first try without hesitation. What makes it great: Small but Mighty: Don't let the size fool you. The 1500A peak current packs enough punch for large gas and diesel engines. Super Portable: It’s way more convenient than carrying bulky jumper cables and waiting for a stranger to help. It fits right in my glovebox. Safety First: The jumper cables feel high-quality, and the built-in protections give me peace of mind that I won't spark anything or damage my car's electronics. Bonus Features: The 3-mode flashlight is bright enough for night repairs, and it doubles as a power bank to charge my phone in an emergency. Whether you're heading out on a road trip or just commuting, this is essential gear for every trunk. Highly recommended!
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Reviewed in the United States on January 1, 2026 by ray9279