AstroAI S8 Ultra Car Battery Jump Starter 4000A for Up to 10.0L Gas & 8.0L Diesel Engines, with 12V Jump Box & USB Quick Charge & DC/Type C Port

It works well so far

This item arrived promptly and although I haven't had it very long it seems to work perfectly, I purchased it so that I have a backup in case my car won't start, I haven't had to use it for that but I have used it to recharge my phone using one of it's USB outlets which only used less than 25% of its capacity according to the charge lights. I've also tested the 12V outlet which also works fine

AstroAI S8 Ultra 4000A Jump Starter Power Pack

This is as good as it gets. Dead battery - no problem. Kept me going until I could arrange a new battery.

Worked well

I read instructions and charged as specified ready for use. On first try worked very well and easy to use. Started the car no problem and still has plenty of charge to repeat a good few times yet. Impressed so far

Brilliant

Was worried as it’s quite cheap,it’s quite chunky but it was brilliant,battery was dead and it started first time and still had full chatge on the indicator,a must have

AstroAI S8 Ultra 4000A Jump Starter Power Pack

Brilliant change from using jumper leads! Used twice and no issues starting my diesel Sportage. Needed to press the Boost button once as the car battery was fully depleted. Deffo recommend

Good

Fast delivery, good quality

I am satisfied

Really i used 3 times, this is very good products

It works!

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.