S8 Car Battery Booster Jump Starter Power Pack,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.

Very good, size is very suitable it will give you a peace of mind.

Good Quality

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.

استخدمة إلى الان اقدر اشحن اربع سيارات و أعيد شحنة جربتة وكان مناسب

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!

Practical &simple use

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

Excelente producto lo eh probado en diferentes vehículos y funciona muy bien

The AstroAI S8 Car Battery Jump Starter works great and gives real peace of mind to keep in the car. It’s compact, easy to use, and has plenty of power to start a dead battery quickly. The instructions are simple, and everything feels sturdy and well made. I love not having to rely on another vehicle for a jump anymore. Charged up fast and held the charge well too. Definitely a smart purchase and worth having for emergencies!

A compact unit that easily starts your car. Car battery went dead and started the car no issues. Had to stop on way to garage and unit started me again with 2 lights still showing as a charge level. Handy to keep in the boot to get you out of those surprise moments when your car surprises you with a flat battery. Why did you choose this product over others?: Compact and has already proven itself. Battery life: Can't fault this item started my car twice and still had some life left. Charging capability: Easy to charge and holds it's charge well. Says to charge every month to keep it topped up but.kust say forget about this and a few.months on it doesn't seem to have dropped any battery life. Car start: Started my car twice without needing to be charged Well worth the money for that reassurance should you need it and stall your car it will get you up and running again. Build quality: Well built solid unit, clear instructions and good quality clips for the battery connections. Compactness: Small but powerful. Compact and can fit in you glove box or boot.

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.