5.0 out of 5 stars Powerful and compact

l. · 19 June 2025

(function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } 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.

5.0 out of 5 stars Fantastic! A must-have for every car owner!

F. · 12 August 2024

The media could not be loaded. 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.

5.0 out of 5 stars Simple and effective

A.C. · 21 February 2025

I noticed this product is much cheaper than equivalent products that do the same thing.Context of why I bought it:My son had a car delivered it hadn't been driven for two months. Dead of winter. The battery was dead. Not so much as a noise when turning the key.I mulled over calling the garage out but decided having one of these might be useful going forward.It arrived charged. I put a few more volts in and connected it up.Car turned over first time. Thing pretty much paid for itself right there and then.Because I never took the car for a long drive battery died again overnight.Same thing next day. Dead battery but using this it turned over first time.It now lives in the glove box and I get real peace of mind from that. My son is only young.Bonus functions - torch, usb and usbc charging capability.So, from my limited use it’s been a superb investment.Details.Car I used it on, only a little 1.0 litre engine ( so tiny).Use was almost out of the box so can’t comment on how well it holds a charge over time, for example if it was left in the boot.Great bit of kit. My experience has been nothing but positive ( battery joke in there somewhere..).

4.0 out of 5 stars Very handy well made

s.a. · 27 January 2025

Good piece of equipment,, very handy for jump starting instead of bulky leads. Small and lightweight but packs a punch. I have used it half a dozen times to start vehicles with a dead battery but I found I had to charge it after every use as there wasn't enough power for the next vehicle, however the vehicles I was using it on where completely flat. It's also well made and quite sturdy.

5.0 out of 5 stars A Lifesaver on the Road!

E. · 8 January 2025

The AstroAI S8 Jump Starter is an absolute game-changer. I used it to jump-start my car in freezing weather, and it worked flawlessly. The 1500A power is more than enough to handle most vehicles, and the included safety features gave me confidence while using it.Beyond jump-starting, it doubles as a power bank, which is super handy for charging phones and other devices during road trips. The compact size makes it easy to store in the glove box, and the flashlight is a thoughtful addition for emergencies.This is a must-have for anyone who drives. Reliable, portable, and worth every penny. Highly recommend!

Efficace

E.W. · 24 January 2024

(function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } 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 👍

Power Jump Starter a MUST HAVE

J. · 11 June 2025

My 2011 Lexus Hybrid was sitting for 3 months. I called AAA for a jumpstart. The technician told me to drive it around town, preferably the parkway, to give the Hybrid battery what it needs. I tipped him $20 and he was gone. I drove it maybe 30 minutes around the neighborhood. The next morning, it would not start. I went on line and found this beauty, nicely priced with same day delivery. It was waiting for me when I returned from work. It was charged 3/4 out of the box so I plugged it in for a full charge, followed the directions hooking it up to my car’s battery, made sure to press the boost button and voila - a super quick charge. This little doozy has power! I did drive it on the parkway and around town for a solid hour and all is well! I purchased one for each of my children to keep in their cars. It’s a solid instrument & a total must have; easy to store in the car in its carrying case (which is included). Oh, and the flashlight feature is a real bonus. As long as you keep it charged, it’ll save you a load of money and hassles when you need it! My only regret is not purchasing this before calling AAA.

Great product, simple instructions, no long jump cable cable hassle & no more wait for insurance

J. · 11 February 2025

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.

Pequeño pero poderoso

L. · 27 May 2025

Francamente me impresiono el tamaño, es bastante mas pequeño de lo que esperaba, pero eso bueno para mi, me facilita muchisimo el acomodar mis cosas en mi carro. Francamente no esperaba poder utilizarlo tan rapido, pero a mi padre se le quedo el carro por la bateria y llegue conecte le di a "power" y predio el carro como si nada.

Excelente

J.R. · 5 May 2025

Qualidade muito boa