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, Orange

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!

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.

Very strong. Will jump a complete dead dead dead battery. I love the boost feature. Well worth the money. Material is heavy duty and well made. Have had almost 2 years and still going strong. Charges well and holds charge well. Only down fall is can only boost jump about 3 to 4 times and takes battery jumper charge down fast. It's extremely easy to is and very portable.

Bought as gifts for my husband and son. Like knowing son has it in his truck. Has came in handy not just for trucks but also riding mowers. Like the size and able to use different places. Saves on space instead of long battery jumper cables

This has saved my bacon so many times. Works great. I've jumped my truck 4-5 times before needing a recharge. Easy to use, and small and portable to fit in your vehicle.

Work good nice

Brilliant, affordable jump starter. Easy to use, great travel size. Charges in a reasonable amount of time. This item was very useful during a troubling time with my car. I recommend this item, especially as a gift for a new driver.

This item arrived nicely packaged and all the power cords and instructions were included. I bought this for emergency purposes. You never know when you

Funciona perfeitamente , mas a bateria acaba bem rápido , mas é excelente para uma emergência

الجهاز ممتاز ماشاءالله واستخدامي له قليل ممكن ١٠ مرات خلال سنة على عدة سيارات صغيرة او كبيرة منها واحدة منتهية بطاريتها لها ٦ شهور وماشاء الله شغلها. الى الان تقريبا سنة مافي اي مشاكل او تسخين. بس انتبه لنقطة انك لازم تفكه من البطارية بعد تشغيل السيارة

Acheté pour faire démarrer une batterie sur une 308 Diesel (de 2012), ça fonctionne parfaitement. J'avais une crainte pour pouvoir trouver un endroit pour mettre la masse car le câble est très court et sur ce modèle de 308, la masse de la batterie n'est pas accessible (seulement le plus), mais impeccable, j'ai pu trouver vers le capot de quoi mettre la pince noire sur la carrosserie pour faire masse. Et démarrage du premier coup 👍

I bought this AstroAI S8 car battery booster as a gift for my sister, whose car battery tends to go flat because she doesn’t drive often enough. From the moment I opened the box, the quality of the product was immediately apparent. The build quality is evident straight away, instilling confidence that it’s designed to last. The packaging was sleek and stylish, and the unit arrived nearly fully charged, which was a pleasant surprise. Knowing my sister needed something reliable, I was eager to test it before she had to rely on it in an emergency. The jump starter surpassed expectations right from the beginning. We tried it on her car with a flat battery, and it worked flawlessly on the first attempt. Each jump start uses about 25% of the booster’s battery, but keeping an eye on the remaining power is straightforward thanks to the bright blue battery status lights. The unit is also very easy to charge using the included USB cable. Its ease of use is a major highlight. Just connect it according to the clear instructions, and the car started up in seconds. This level of convenience is a significant improvement over traditional jump leads, allowing her to be completely independent and avoid the awkwardness of asking a neighbour or stranger for help to jump-start the car. The clamps and cables are incredibly tough and durable, feeling nice and tight when secured to the battery, unlike the jump leads I’ve used in the past. The compact size of this booster is another strong point. It’s small enough to fit neatly in her older Fiat’s glove compartment without taking up much room, yet it packs a powerful punch. Despite initial doubts about whether such a compact device could handle an older battery, it performed admirably, even in cold weather when batteries are typically more challenging to start. Over the past month, she’s had to use it multiple times, and it has proven to be a dependable tool. The built-in LED torch is another thoughtful feature, making it easier to operate in dimly lit conditions, like early mornings or late evenings. The fact that it also doubles as a power bank for charging mobile phones adds even more value to an already impressive product. Considering its price, the AstroAI S8 offers exceptional value for money. Not only is it affordable, but it also delivers high performance, making it a smart choice for any car owner. Given that a single call-out for roadside assistance can cost twice as much as this booster, investing in one is an obvious decision and well worth every penny. The delivery was fast, and the overall service was excellent, making the entire purchase experience smooth and satisfying. I’m so impressed with its performance and build quality that I’ve decided to order one for my car as well. If you’re in the market for a reliable, powerful, and well-built jump starter, I highly recommend the AstroAI S8. I could kick myself for not buying one sooner. Thank you for taking the time to read my review. I hope that you found it helpful and that it assists you in your decision-making. I try to be as honest and fair as possible, as those have always been the reviews that helped me the most.

I got it to help jumpstart my VW PASSAT V6 as the battery was completely drained while the car was parked for ~ 2 months. The unit was at 50% battery when received. The manual is great, simple and straight forward. I followed the instructions in the manual. It took approx. 1 hour to charge it via my phone's USB-C fast charger up to 100%. It took 2 attempts to start the car. The 2nd attempt was because I didn't wait the 30 seconds as per the manual's instruction in handling completely drained batteries in my 1st attempt. On the 2nd attempt, I followed the instructions for completely drained batteries and the car started smoothly. Both attempts used ~25% of the booster battery capacity. Over all, the package is great in size and weight. I like the idea it came with a small bag to house the booster and cables. The booster uses USB-C for charging. No more jump start cable hassle and no more waiting forever for insurance recovery.