S8 Car Battery Booster Jump Starter Power Pack,1500A 12V Portable Car Jump Starter Power Bank for Up to 6.0L Petrol & 3.0L Diesel Engines, With Smart Jumper and LED Torch

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.

For two months, used 5 to 6 times and it does the job perfectly each time. Worked for 4 cylinder 1.8 liter Mercedes Benz sedan and 8 cylinder 4.8 liter Lexus SUV

I like this stuff because it is poweful even dead battery can recover to charge again. Good also as power bank.One thing is negative from me this battery itself easily drained specially you used from dead car battery.

Wow, this astroAI S8 battery booster is the real deal! I used it to jump my car and it worked like a charm, starting my 4L engine right away. Seriously, I was impressed because it even got my 75 Amp battery going on the first try. If you're looking for a reliable jump starter, I highly recommend this one; it's a lifesaver. Definitely worth the purchase!

This jump start kit was perfect and it helped alot of my friends. I havent tried it on mh car yet. But ive helped alot.

Practical &simple use

جيد

Can I give zero stars? I charged it fully, i used it to charge my phone, dis half a charge and it was empty. Charged it to full capacity. Cant switch it on to help start car, light doesnt come on and when i want to charge it, the 100% light flashes and turns off. Doesnt work at all. Only tried using it twice and now cant return anymore

Very useful gadget to have. Very easy to use and works well.

Por el momento muy bien, lo utilicé para arrancar una cuatrimoto y sin problemas!!!

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 👍

The AstroAI S8 worked perfectly the first time I used it to jump-start my car, and I was impressed with how easy it was to use. However, I can’t say much about long-term performance since this isn’t a product you use regularly. Aside from the built-in flashlight, it mostly sits unused until a battery emergency happens. Realistically, I’ll probably only need it once a year—or even less if I replace my car battery on time. Overall, it’s a reliable tool when you need it, but not something that offers everyday usefulness.

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.