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(Yellow)
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Availability:
Only 10 left in stock, order soon!
Arrives
Wednesday, Jun 10
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Color: Yellow - 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 CLAMPS 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.
Brand: AstroAI
Battery Cell Composition: Lithium
Voltage: 12 Volts
Product Dimensions: 4.5"D x 7.9"W x 3.7"H
Vehicle Service Type: Passenger Car, Motorcycle, Van, ATV, RV, UTV, Truck, Watercraft, Tractor
Battery Type: Lithium
Voltage: 12 Volts
Compatible with Vehicle Type: Passenger Car, Motorcycle, Van, ATV, RV, UTV, Truck, Watercraft, Tractor
Battery Capacity: 1500 Amp Hours
Amperage: 1500 Amps
Peak Output Current: 1500 Amps
Automotive Fit Type: Universal Fit
Item Dimensions D x W x H: 4.5"D x 7.9"W x 3.7"H
Item Weight: 12.64 ounces
Brand Name: AstroAI
Manufacturer Part Number: S8
Manufacturer: AstroAI
Model Number: S8
Unit Count: 1.0 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 10
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: Yellow - 1500A (S8)
I’ve bought this one for my dad. I have one just like it same name brand and it’s red and black. I’ve had mine well over a year and so has dad and they still work great! I love it were it’s small and not bulky like big ones. This thing can jump start cars with even V8 engines with no battery charge at all. I jumped a V8Gt mustang with it 8 times before battery died. So they are well worth money and the charge don’t leak down either when not on charge. I leave mine in my vehicle. U can charge cell phones with it and also has a bright flash light. Also on the boosting u have regular boost charge for smaller battery’s like lawn mowers and has a button to jump power up to start a car with. These are nice to have and it’s well worth the cost. Mine works better than my friends and he gave high dollar for his. He went bought him one to replace the one he was using cause his kept going dead when wasn’t on charge. He loves this one so does my dad and I do too. Definitely get one if u want a jumper. They are very handy and u can store them in your glove box or console
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Reviewed in the United States on March 7, 2026 by Chris Slone
Color: Yellow - 1500A (S8)
I ordered this AstroAI S8 battery a little over a year ago. Its primary purpose would be to have an option for jumpstarting the battery in my 2004 Lexus ES330, and its secondary purpose would be to have an option for charging my phone or other portable electronic devices. At that time in late 2024, I was transitioning to a new vehicle but was keeping the 2004 Lexus as a backup. Because I wouldn't be driving the 2004 Lexus much, I felt the need to have an external battery option for jumpstarting the car battery. I haven't had to use this until now, but man am I glad I had this. After fully charging it when I received it, it had been sitting in the vehicle unused for the past 12+ months. I don't recall if I ever recharged it during the past 12 months. Regardless though, it seemed to hold a charge pretty well. I had to use it this past weekend and it appeared fully charged. The first attempt at starting the car was unsuccessful, and it did use up ~25% of the battery. I was worried that the issue wasn't a dead battery but something more significant. However, after exploring other possibilities, I decided to give the jumpstart another shot. This time it worked perfectly and the engine started up! This was really easy to use and it came in clutch. Nothing more I could ask for. Just be aware that each attempt at jumpstarting may use about 25% of the charge, so realistically you have 4 attempts at most before this external battery is drained.
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Reviewed in the United States on December 16, 2025 by V Cash
Color: Yellow - 1500A (S8)
This AstroAI car battery jump starter works great and is easy to use. It’s compact, well made, and gives peace of mind in emergency situations. It starts the car quickly and holds a good charge. Overall, a very useful tool to keep in the vehicle and great value for the price.
Reviewed in the United States on December 17, 2025 by Shary T.
Color: Yellow - 1500A (S8)
Used for the first time in the Texas cold of 55 degrees. Had a full charged and took two attempts as first time pressing boost only slowly spun motor. Second time pressing boost it spun my motor fine but only showed 25% battery remaining. Had no trouble starting a 6.2L gas v8 with moderate aftermarket cam Worth the buy for the price and can comfortably say it should have no problem starting most normal v8 trucks
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Reviewed in the United States on December 6, 2025 by Michael
Color: Yellow - 1500A (S8)
I bought this after my car left me stranded because of a dead battery, haven't used it on my car yet, but I've used it on 3 other V6 car batteries and no issues, starts very quickly without any issues. It also comes incorporated with a very strong flashlight and it also works as a power bank, the design is nice doesn't take up much space and very easy to use, it's a must for every driver.
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Reviewed in the United States on March 14, 2026 by Ziad Z.
Color: Yellow - 1500A (S8)
This does the job. I have an old 4 cylinder car that is usually slow to start and this jumper pack can jump it twice on a single charge. There are other accessories like a USB outlet to charge your phone and it even has a flashlight, but the best feature is that you use your USB-C phone charger to recharge it. So I leave it plugged into the phone charger so it is always full incase I need it.
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Reviewed in the United States on October 15, 2025 by BryMelSmith
Color: Yellow - 1500A (S8)
Great compact jump starter. Small but powerful — it helped me start my car with a completely dead battery. Easy to use and very convenient to keep in the trunk. Highly recommend.
Reviewed in the United States on March 1, 2026 by Vitali Mialenkou
Color: Yellow - 1500A (S8)
Works perfectly
Reviewed in the United States on April 26, 2026 by C. H.