AstroAI S8 Car Battery Jump Starter, Car Jumper Starter Battery Pack for Up to 6.0L Gas & 3.0L Diesel Engines, 12V Portable J
4.6 | 11,162 ratings
Price: 44.99
Last update: 01-21-2026
About this item
- 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.
Product information
Features & Specs
| Battery Type | Lithium-Nickel Manganese Cobalt (NMC) |
|---|---|
| Voltage | 12 Volts (DC) |
| Compatible with Vehicle Type | ATV |
| Battery Capacity | 10000 Milliamp Hours |
| Amperage | 1500 Amps |
| Peak Output Current | 1500 Amps |
Measurements
| Item Dimensions D x W x H | 4.5"D x 7.9"W x 3.7"H |
|---|---|
| Item Weight | 0.79 Pounds |
Warranty & Support
Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee:You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditionshere.
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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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Item details
| Brand Name | AstroAI |
|---|---|
| Manufacturer Part Number | S8 |
| Manufacturer | AstroAI |
| Customer Reviews | 4.54.5 out of 5 stars(9,343) 4.5 out of 5 stars |
| Best Sellers Rank |
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| ASIN | B0BZP6HCVS |
| Included Components | Cable |
| Item Height | 10 centimeters |
| Manufacturer Warranty Description | 2 Year Manufacturer |
Top reviews from the United States
- Famous AimsHalf the price, just as good!I bought it for the lower price, safety features and positive reviews. I am impressed by its quality and usefulness. I am a van lifer and this jump starter is a must have! It jumps my van battery faster than using another vehicle does. It's super simple to use, fast, safe and reliable. I was told to get one that is twice the price but couldn't afford it. This one is just as good and does the job perfectly. If you're considering purchasing this jump starter I highly recommend it.
- Fdo ShopperAstroAI S8 - Amazing little thing for a BMW X5 4.0 SUVWhen 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. - Vanessa GonzalezAmazing!!!!!!This works so darn good! My car needed a jump and it started right away. Definitely worth the money!!!!!! It charges pretty quick too. It comes in this cute little black bag so you can store it in. I actually put it in my glove compartment, bc if my battery dies it won’t let me access the trunk. Nice and compact, and also has a built in flashlight as well.
- Lexiperfect 3-in-1 gadget to carry in my car!Compact but very mighty. 3 in 1 gadget with a flashlight, backup phone charger battery, & battery jump starter. You can get a good amount of uses on one charge with a light indicator to show the leftover charge on the battery. Starts my trucks and cars right away. We have bought 2 because the first one was very good. Well thought out design to help you when your battery gives out as well as access to charge your phone in case you need an emergency tow or call
- Jean-LucGood help to start the engineQuick recharge and help to start an engine
- ofert41Great Price for a peace of mindEasy to use, charging is easy with USB cable included. Does take a while to charge if you let it get to 25%, has boost feature if you need more juice if battery needs it. Portable comes with a bag for storage fits in your hand, cables are right length and charger tell you if it's connected properly great safety feature gives a a peace of mind. Remember it's great power ln a small package
- XtraMannishDecent jumper especially with the boost featureInitial use was a good experience. 1998 Blazer(6 cylinder) with a 18 month old battery that had been sitting for 11 months. I would start it every other week, but only run it for about 20 minutes. Battery became completely dead. Plugged in the AstroAI S8 and got nothing, no spark, nothing. Read that if the green light is on, use the boost function. The vehicle started right up, but I had trouble keeping it running. This went on for about 15 minutes, I would have to jump the blazer a handful of times. Finally, I was able to keep it running and drove it around for 45 minutes. It did take the battery level all the way down to the lowest level, but that was after 5 or 6 times of jumping a dead battery.
- JamesGood valueIt works, and it's great to have it on hand for when you need it. It's no frills, but it's priced right and does the job. Simple to charge and for one person to use.