---
product_id: 643365939
title: "S8 Car Battery Jump Starter 1500A – Portable 12V Lithium Jump Box"
brand: "astroai"
price: "€ 118.95"
currency: EUR
in_stock: true
reviews_count: 13
category: "Astro Ai"
url: https://www.desertcart.hr/products/643365939-s8-car-battery-jump-starter-1500a-portable-12v-lithium-jump
store_origin: HR
region: Croatia
---

# 1500A peak current 37Wh high-rate lithium battery USB A/C fast recharge S8 Car Battery Jump Starter 1500A – Portable 12V Lithium Jump Box

**Brand:** astroai
**Price:** € 118.95
**Availability:** ✅ In Stock

## Summary

> ⚡ Jumpstart your freedom—power that fits in your palm!

## Quick Answers

- **What is this?** S8 Car Battery Jump Starter 1500A – Portable 12V Lithium Jump Box by astroai
- **How much does it cost?** € 118.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/643365939-s8-car-battery-jump-starter-1500a-portable-12v-lithium-jump)

## Best For

- astroai enthusiasts

## Why This Product

- Trusted astroai brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Boost Mode:** Auto-detects low voltage & unlocks BOOST for dead batteries—your ultimate roadside hero.
- • **Compact & Lightweight:** Weighs just 12.64 oz with palm-sized design—fits effortlessly in your bag or glovebox.
- • **Multi-Functional Power Bank:** USB output doubles as a charger for your devices—stay powered on the go.
- • **Powerful 1500A Peak Current:** Instantly jump-starts 6.0L gas & 3.0L diesel engines—never get stranded again.
- • **Comprehensive 8-Point Safety:** Reverse polarity, overcharge & short circuit protections keep you and your vehicle safe.

## Overview

The AstroAI S8 is a compact, ultra-powerful 1500A lithium jump starter designed for 12V vehicles including cars, motorcycles, SUVs, and trucks. Featuring a 37Wh high-rate lithium battery and smart boost mode, it reliably starts engines up to 6.0L gas or 3.0L diesel, even from fully drained batteries. With advanced 8-point safety protections and USB charging capabilities, it’s a must-have portable power solution for professionals who demand reliability and convenience on the road.

## Description

Buy AstroAI S8 Car Battery Jump Starter 1500A – Portable 12V Lithium Jump Box | BOOST for Dead Battery, 3 Mode Flashlight, Power Bank & Smart Jumper Cables - for 6.0L Gas and 3.0L Diesel Engine, Red: Jump Starters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: What a little lifesaver !! - I am so obsessed with this little thing! Car was in storage for 3 months and the battery was dead. I got this to try jumping it myself. INSTRUCTIONS: very simple. you attach red clamp, then black, wait for solid green light, press the “boost” button if the light is flashing, then try to start your car. *VERY IMPORTANT* I almost missed this in the instructions - after your car starts you must remove the device within 30 seconds or it can do damage. Also- although it arrived with full bars, I charged it before use as instructed and it continued to charge, stopping when it was actually full. So def recommended charging on arrival. HOW IT WORKED: It took several seconds for the green light to turn on, so be patient. If it doesn’t turn on, try redoing the clamps. Once the light was green I tried to start the car and it didn’t work twice. I almost gave up, but the dash lights came on the second time and the engine made a noise, so I pressed the boost button and tried again - and it started !! I think it only didn’t work at first due to my battery being dead for ages, because it worked immediately on subsequent uses. Yes, subsequent uses. I drove my car around for a couple of hours and everything seemed fine for the next day. Then after not driving it for a day it wouldn’t start again. I had forgotten to charge the device but it instantly worked and was at 50% charge after. I had a (correct) feeling it would keep happening every time I turned my car off but my mechanic was closed for the weekend and I had some errands to run- so I just brought the little guy with me. Since it’s a USB plug I charged it while I was at the gym and it was fully charged by the end of my workout! I then had to use it two more times before going home, at that point it had 75% charge. So you can get 2-3 jumps out of one charge for sure, maybe even 4! Now I thought my battery kept dying because this little guy + driving around wasn’t able to give it enough juice after being stored for ages, so I got a smart battery car charger and charged the car battery for the full 4 hours recommended. After that my car still wouldn’t turn on! Once again the little guy saves my butt - I was immediately able to jump it to take it to my mechanic, who confirmed my battery was absolutely shot from being in storage. Honestly I’m pretty impressed this little thing was able to jump a toasted battery so consistently when a full battery charge via a wall outlet didn’t even work. FINAL THOUGHTS: This thing absolutely rocks. Amazing value for the price. Some people complain about only being able to get a couple uses out of it before having to charge the device- but as mentioned I’m just amazed that this tiny, super light weight thing has so much power ! This thing is lighter than those portable batteries you use for your phone and just bigger than the length of my hand. So easy to toss in a bag and it charges so quickly. One thing I feel a little stupid about, for anyone else who is too used to charging their iPhone with a usb-C wall mount: the charger is USB A to USB C. At first I only saw the USB A port, so I plugged that bit into the device and the USB C end into my phone’s wall mount. I then saw the little USB C port in the side which labeled “in” and realized I had plugged it in backwards. So just make sure you don’t make that ditzy mistake or else I don’t think it would actually charge. The USB A ports are labeled “out” so I think it could double as a power bank for your phone or whatever which is cool!
Review: AstroAI S8 - Amazing little thing for a BMW X5 4.0 SUV - 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.

## 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.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C3B3BVPD |
| Amperage | 1500 A |
| Automotive Fit Type | Universal Fit |
| Battery Capacity | 1500 amp_hours |
| Battery Cell Composition | Lithium-Nickel Manganese Cobalt (NMC) |
| Battery Type | Lithium-Nickel Manganese Cobalt (NMC) |
| Best Sellers Rank | #403 in Automotive ( See Top 100 in Automotive ) #8 in Jump Starters |
| Brand | AstroAI |
| Brand Name | AstroAI |
| Compatible with Vehicle Type | Passenger Car, Motorcycle, Van, ATV, RV, UTV, Truck, Watercraft, Tractor |
| Customer Reviews | 4.4 out of 5 stars 12,169 Reviews |
| Global Trade Identification Number | 05906168435799 |
| Item Dimensions D x W x H | 4.5"D x 7.9"W x 3.7"H |
| Item Highlight | BOOST for Dead Battery, 3 Mode Flashlight, Power Bank & Smart Jumper Cables - for 6.0L Gas and 3.0L Diesel Engine, Red |
| Item Weight | 12.64 ounces |
| Manufacturer | AstroAI |
| Manufacturer Part Number | S8 |
| Model Number | S8 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Peak Output Current | 1500 A |
| Product Dimensions | 4.5"D x 7.9"W x 3.7"H |
| Unit Count | 1 Count |
| Vehicle Service Type | Passenger Car, Motorcycle, Van, ATV, RV, UTV, Truck, Watercraft, Tractor |
| Voltage | 12 volts |

## Product Details

- **Battery Cell Composition:** Lithium-Nickel Manganese Cobalt (NMC)
- **Brand:** AstroAI
- **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
- **Voltage:** 12 volts

## Images

![S8 Car Battery Jump Starter 1500A – Portable 12V Lithium Jump Box - Image 1](https://m.media-amazon.com/images/I/71aaLf-rSLL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: What types of batteries can this battery booster start?**
A: It can start 6.0 L gas/3.0 L diesel engines and other 12 V vehicles like motorcycles, cars, SUVs, pickups, or lawnmowers.

**Q: Why can't I get this jump starter fully recharged? Only stuck at a certain battery percentage?**
A: This item is not fulfilled by seller and the battery inside will discharge itself constantly while being stored in the warehouse. Therefore it takes a longer time for the first time you charge this jump starter, which should be at least a few hours.

**Q: How often does it need to recharged?**
A: This product has a maximum standby time of 18 months, but it's best to charge it within 3 months to maintain battery health and extend its lifespan.

**Q: Why did the jump starter fail to jumpstart my truck in winter?**
A: The battery may not perform optimally in extreme cold weather. Please ensure that the jump starter is kept in a warmer place before use.

**Q: How should I use the product?**
A: Please check the manual for more information before using. If you have any questions about the product, our California-based support team will respond.

## Customer Reviews

### ⭐⭐⭐⭐⭐ What a little lifesaver !!
*by N***I on August 25, 2025*

I am so obsessed with this little thing! Car was in storage for 3 months and the battery was dead. I got this to try jumping it myself. INSTRUCTIONS: very simple. you attach red clamp, then black, wait for solid green light, press the “boost” button if the light is flashing, then try to start your car. *VERY IMPORTANT* I almost missed this in the instructions - after your car starts you must remove the device within 30 seconds or it can do damage. Also- although it arrived with full bars, I charged it before use as instructed and it continued to charge, stopping when it was actually full. So def recommended charging on arrival. HOW IT WORKED: It took several seconds for the green light to turn on, so be patient. If it doesn’t turn on, try redoing the clamps. Once the light was green I tried to start the car and it didn’t work twice. I almost gave up, but the dash lights came on the second time and the engine made a noise, so I pressed the boost button and tried again - and it started !! I think it only didn’t work at first due to my battery being dead for ages, because it worked immediately on subsequent uses. Yes, subsequent uses. I drove my car around for a couple of hours and everything seemed fine for the next day. Then after not driving it for a day it wouldn’t start again. I had forgotten to charge the device but it instantly worked and was at 50% charge after. I had a (correct) feeling it would keep happening every time I turned my car off but my mechanic was closed for the weekend and I had some errands to run- so I just brought the little guy with me. Since it’s a USB plug I charged it while I was at the gym and it was fully charged by the end of my workout! I then had to use it two more times before going home, at that point it had 75% charge. So you can get 2-3 jumps out of one charge for sure, maybe even 4! Now I thought my battery kept dying because this little guy + driving around wasn’t able to give it enough juice after being stored for ages, so I got a smart battery car charger and charged the car battery for the full 4 hours recommended. After that my car still wouldn’t turn on! Once again the little guy saves my butt - I was immediately able to jump it to take it to my mechanic, who confirmed my battery was absolutely shot from being in storage. Honestly I’m pretty impressed this little thing was able to jump a toasted battery so consistently when a full battery charge via a wall outlet didn’t even work. FINAL THOUGHTS: This thing absolutely rocks. Amazing value for the price. Some people complain about only being able to get a couple uses out of it before having to charge the device- but as mentioned I’m just amazed that this tiny, super light weight thing has so much power ! This thing is lighter than those portable batteries you use for your phone and just bigger than the length of my hand. So easy to toss in a bag and it charges so quickly. One thing I feel a little stupid about, for anyone else who is too used to charging their iPhone with a usb-C wall mount: the charger is USB A to USB C. At first I only saw the USB A port, so I plugged that bit into the device and the USB C end into my phone’s wall mount. I then saw the little USB C port in the side which labeled “in” and realized I had plugged it in backwards. So just make sure you don’t make that ditzy mistake or else I don’t think it would actually charge. The USB A ports are labeled “out” so I think it could double as a power bank for your phone or whatever which is cool!

### ⭐⭐⭐⭐⭐ AstroAI S8 - Amazing little thing for a BMW X5 4.0 SUV
*by F***R on November 16, 2025*

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.

### ⭐⭐⭐⭐⭐ Perfect emergency tool for the car
*by Y***A on September 7, 2026*

Very happy with this jump starter. I bought it just in case and it already got me out of a jam when my car battery died. It started the car on the first try, no problem. It's compact and fits perfectly in the glove box. The charge holds up well, and it doubles as a power bank for my phone, which is a nice bonus. The built-in flashlight is handy for emergencies and the clamps feel sturdy and well made. For the price, it's absolutely worth having in the car for peace of mind. Highly recommend.

## Frequently Bought Together

- AstroAI S8 Car Battery Jump Starter, 1500A Peak 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 (Red)
- AstroAI Tire Inflator Portable Air Compressor Tire Air Pump for Car Tires - Car Accessories, 12V DC Auto Pump with Digital Pressure Gauge, Emergency LED Light for Bicycle, Balloons, Blue

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-09-28*