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🚗⚡ Never get stranded again—power up your drive with AstroAI B8!
The AstroAI B8 Car Jump Starter is a compact, ultra-light 329g lithium polymer power pack designed to jump-start vehicles with engines up to 7.0L petrol and 5.5L diesel. It features 10 advanced safety protections, a multifunctional LED emergency light with steady, SOS, and strobe modes, and doubles as a portable power bank with USB-A/C ports. Complete with smart clamps and a storage bag, it’s engineered for reliability in extreme temperatures (-20℃ to 50℃) and backed by a 2-year warranty, making it an essential tool for every driver’s emergency kit.














| ASIN | B0FB2L7CCX |
| Amperage | 2000 Amps |
| Automotive Fit Type | Universal Fit |
| Battery Capacity | 8000 Milliamp Hours |
| Battery capacity | 8000 Milliamp Hours |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | 38 in Automotive ( See Top 100 in Automotive ) 1 in Car Battery Jump Starters |
| Brand | AstroAI |
| Brand Name | AstroAI |
| Compatible with Vehicle Type | Automotive |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 1,899 Reviews |
| Included Components | AstroAI B8 Car Battery Jump Starter, Pack with Giftbox, Smart Jumper Leads, Storage bag, Use Manual and Warranty card, USB Cable |
| Item Dimensions D x W x H | 8.3D x 16W x 2.8H centimetres |
| Item Type Name | jump starter |
| Item Weight | 650 Grams |
| Manufacturer | AstroAI |
| Manufacturer Part Number | B8 |
| Manufacturer Warranty Description | 2-year manufacturer's warranty |
| Model Number | B8 |
| Number of Items | 1 |
| Product dimensions | 8.3D x 16W x 2.8H centimetres |
| UPC | 810196490055 |
| Unit Count | 1.0 count |
| Vehicle service type | Automotive |
| Voltage | 12 Volts |
| battery-cell-composition | Lithium Polymer |
D**H
Amazing product, does a lot, easy, well worth it.
Absolute life saver product. Very easy to use and charge. Very quick to start car, literally bonnet open, connect the two do das, start car. Like 1 minute top. Light and small, easy to take with/ store. My cars got problems atm, this has jump started it 3-4 times and only used 1/4 battery. As it's always coming out with us atm due to how unreliable the car is atm, it's fantastic as can quickly charge phone etc. a little bit, so not having to use my poorly car, or panic about phone etc. running out. So very happy I bought this. And for the price, even if your car doesn't have problems like mine atm, I think it's well worth having around just in case.
N**B
An essential for every car - time saving and great for emergencies
This jump starter is an absolute essential for any car, my 1.2 Vauxhall Corsa's battery had completely drained after sitting for months on the driveway. Charged up fully fairly quickly after an hour or two. Very clear,easy instructions. Great anti surge protection and indicator lights to show if they're connected correctly. Multiple use as a torch at night and as a phone charger, making it highly reliable for emergencies or as a handy accessory without the need for a second car or person. It's compact and fits in the glove box, the charge holds very well with enough power to jump-start my sisters car a week later. Overall an excellent product that really will help when you need it too.
J**L
Best Jump starter & Power pack to charge ur phone etc
5/5 Stars - Absolutely Brilliant and Highly Recommended! I was a little bit skeptical at first because of how compact and small this device is, but wow, what an amazing little power pack to keep in the car! My car battery was completely flat, and this jump starter worked perfectly on the very first round. It started the engine instantly with zero fuss. It comes with very clear written instructions, and the video instructions on the Amazon page made it incredibly easy and safe to use. As a fantastic bonus, it also comes with a two-year guarantee warranty for peace of mind, and a lovely little storage baggy to keep everything neat and tidy in the vehicle. For the price and the small size, the power it packs is unbelievable. It has given me so much confidence and independence back. If you are on the fence about buying this, do not hesitate at all. It is worth every single penny and is a complete lifesaver!
N**S
An excellent company to deal with
We used this power bank twice and it worked very well but we did then have a problem with the device. Obviously anything can have problems but the communication and advice we received from the company was exemplary and we couldn't ask for better service. The problem was sorted very quickly and we would highly recommend them.
I**K
Great product at a good price and works perfectly
I purchased this as my previous RAC jump charger battery stopped working. That charger was huge compared to this small compact charger. Quality The build quality of this charger is good with a full charge taking 1-2 hours (mine came with 25% charge out of the box) and it is recommended to charge to 100% when you get it. The charger is built out of strong plastic and overall not particularly heavy and can easily fit into your glove box. WHAT’S INCLUDED? You get the charger a USB charging cable and a crocodile clip accessory that plugs into the charger to allow you to connect it to the car battery HOW DOES IT WORK? After charging the Powerbank for a couple of hours to 100% I connected it to my car allowed it to charge the battery for a couple of seconds and was instantly able to start the car with no problem. This is hugely impressive. The charging cable to connect it to the car battery you simply plug one end into the portable charger and connect the red and black clips to the appropriate terminals on the car battery. The connecting cable even has flashing lights to indicate whether you’ve connected it the right way or not - a bit of a safety mechanism built into the adapter. OVERALL I’ve been left hugely impressed by this compact current battery charger. It has the ability to also charge your device as such as his phone iPad, et cetera as well as being able to charge/boost your car battery. I would highly recommend this product.
P**E
Mighty power in a small unit
This car battery booster pack delivered every time I needed to start my car, due to its current lack of use. Once the jumper cables are attached and I go to start it up, it fires up every time. I have used the pack as a charger for my phone on a few occasions and it charges it fairly quickly.It also has a built in torch light when illumination is required. All this in a pocket sized unit, it's definitely the best purchase I have made. Previously I had to disconnect the car battery and take it home to charge but I no longer have to do this thanks to this jumper pack. I certainly recommend this to save time and worry about needing someone else to boost the battery via conventional jump leads.
K**R
Great and Useful Gadget
The product was delivered with proper instructions and all the requisite attachments. The pack was also well over half-charged when it was delivered. It is nice and compact in size, so hardly take up any storage room in the car. The instructions were easy to understand, and the charger itself is very easy to assemble and use. It also comes with a handy drawstring storage bag to keep everything together. It is USB charged so I can plug it in to charge in the car or take indoors and charge like my mobile phone - all nice and easy. My car battery was fairly new, but I haven't used the car that much over the festive period and then there was a sudden, nasty drop in temperature so the battery had drained out and the engine wouldn't turn at all. But this charger worked like an absolute dream! I used it after a quick top up of the power pack (just to make sure) and the car turned over immediately - no problem at all. Fantastic! It was quite a relief - brilliant! I live in the middle of the country and my nearest garage is nearly 6 miles off, so professional help is not close by. Having this charger means I'm no longer reliant on jump leads and the kindness of others if this happens again. So all in all, the charger is well worth the price. It's now essential kit in the car - it gives me a lot of peace of mind.
M**Y
Worth the money
So easy to use. You charge it to 100%, plug in the leads, attach it to your dead or dying battery and presto your car starts. Worked perfect and exactly how I expected it to. Bright light and charged super quick.
J**N
Very convenient, powerful, holds a charge
Very convenient, powerful, holds a charge. I’ve had this for over 3 months now and it’s still at 97% which is pretty good imho. It’s a handy thing to keep in the trunk for an emergency. Not necessarily even for you but a family member or colleague - will make jump starting their car easier than opening your hood, dealing with connecting the two cars, etc.
E**S
Es muy práctico para una emergencia
Realmente asombroso, lo hemos utilizado y ha funcionado de maravilla.
W**K
A little powerhouse. Highly recommended.
I got this for my 2007 Harley with an alarm. Sooner or later, ya got to jump it. This thing weighs nothing, takes up no space(less space than a pair of normal jump leads!), and yet easily jumps the bike and shows full bars afterwards. It even jumps the diesel volvo and the turbo Subaru no problem only using one bar. I highly suggest it.
J**C
Great product. Worth the cost
Have used this twice and the item is brilliant, light / compact and easy to use. Very much recommend for any private vehicle for the ‘just in case’
A**Z
Vale la pena la compra q
Ya varias veces me pasa que dejó abierto el switch de mi camioneta, así que decidí comprar este producto, está última vez quedó sin energía mi batería, recibí el producto segui las instrucciones, solo tenía el 75% de carga y sin problemas arrancó. Lo recomiendo
Trustpilot
1 month ago
1 week ago