AstroAI S8 Ultra 12V 4000A Lithium Jump Starter Up to All Gas/12L Diesel

I bought it to keep in my car for emergencies, and so far it's worked great. The materials feel solid, and the clamps have a good grip. The battery holds a charge well and also doubles as a power bank for charging my phone. The LED flashlight is a great extra for nighttime use. The device is compact and easy to store in the car. For the price, it offers excellent features, and I have peace of mind knowing I have it with me. I would definitely recommend it.

Very impressed. Jumped my pickup 3 times and still had 4 lights on the charge indicator.

This booster has been a lifesaver. It’s come in handy a few times already. It’s so convenient and easy to use. It’s got plenty of power to get you back up and running. I’m so glad I bought this booster.

Great product! Has started book my 10kw gender and my 57hp yanmars with ease. Best purchase I’ve made in while!

Thought this would not be powerful so when my battery died on my Tacoma, I tried a battery charger and a jump from a second vehicle. Nothing. Cleaned all the terminals and tried again. Nothing. Then I remembered I had this device, hooked it up and car immediately started. Very impressed. Guy at the battery store said I should have started with this device as they usually work the best of all options. Super easy to charge and use.

Good product but keep in on charge non stop.

I have used this on multiple occasions to jump start three motorcycles and a pickup. Each time, the people I've helped have been astounded that such a small device could start a large engine. Everyone should have one of these and I highly recommend it!

As advertised started 2 vehicles back to back completely dead battery

Bought this as my Land Rover with a 2.5 turbo diesel engine had a flat battery, slightly turned the engine over, but not enough. I tried jumping it with another car and it still wouldn't start. It was away from my house so couldn't run the battery charger to it. So power jumper pack required. There are many on the market so it was what's best value for money, this was being sold for £37.99, an excellent price and mid power range. I was a little skeptical to be honest about it, but it started the engine first time. It did require charging when delivered, I did this over night . It dropped one bar after starting the engine, out of 4 bars, but would of done a few more starts I'm sure. I will keep it in my Landy just in case and keep it charged of course. It saved me having to call out recovery so I'm very happy with it, best purchase for many a month.

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My car battery was dead, and someone happened to have this jump starter with him. It started my car instantly, and he highly recommended it to me. I ordered the exact same one from Amazon. I would recommend it to anyone looking for a reliable jump starter.

Die Starthilfe klappt sofort und das auch bei verschiedenen Marken wie VW oder Smart und und…. Habe es immer dabei falls es mal Probleme gibt. Egal zu welcher Jahreszeit, es ist immer einsatzbereit.

ESTE ASTROAI (S8 ULTRA) ES SIMPLEMENTE PERFECTO, NO PUEDE FALTAR EN LA CAJUELA DE TU AUTO, CAMIONETA O CAMIÓN.. PODER REAL EN UN DISPOSITIVO COMPACTO DE CALIDAD PREMIUM.