SYTUNG 4 in 1 Jump Starter Power Pack& Tyre Inflator, 2000A Car Battery Booster, 20000mAh Portable Power Bank with 150 PSI Tyre Air Compressor, 12V Electric Air Pump, Digital Display LED Light

Great bit of kit. Great to have the convenience of tyre inflator and jump starter in one device. Works well and I have already recommended it to a friend that has bought one. Highly recommended.Update;Works sporadically. It sometimes does turn on for a long time when trying to inflate tyre even though fully charged. Repeatedly pressing power button will eventually turn it on. I’m not sure if it may be on its way out.

To look at, this item doesn't look like it'd charge a phone up all that well, let alone turn a car engine over, but don't be put off by it's small form factor, this thing has one hell of a kick. It has been used by myself and friends, the latter being confused that it's capable of starting a car. The reaction to using it has been simple; every one of them has bought one. It's compact enough to keep in your glove box, and can also charge gadgets over USB so it is a great all rounder when you're out and about. Forget having jump cables in your boot and having to park a donor car oddly to facilitate a start, this makes the whole process a stress free experience, and gives you the piece of mind that if you're stuck in the middle of no where without another car in site, you'll be back on the road in no time.

I've used this on a few occasions to give my motorbikes battery a little jump/ charge. A few times being my own fault leaving the ignition on and a few times due to the cold weather causing the battery to get cold and well die.The fact that this also doubles as a power bank in amazing. Forgotten your plug adapter for your phone. Provided you have the lead this has two usb ports meaning you can charge two devices. I use it mostly to multi charge all my spare gopro batteries while I am riding and sometimes my phone heck a few times my sena intercom died and I just charged it while I went and grabbed a coffee before a group ride.But this is such a fantastic piece of kit. I passed a car not too long ago and her battery was completely flat. It managed to get the car to start although it did get very hot so do be very careful when trying to bump a car with it. But as I said this sort of thing is perfect for bikers. I don't leave my house without it.

For the price, a good bit of kit, handy to keep in the boot.

UPDATE II: after only 6 months, it doesn't turn on at all now. (and yes it is fully charged)UPDATE: failed to start a kia sportage 1.6 diesel.Couldn't jump start my 2.0 cdti (80ah) vauxhall insignia. Tried on 3 separate occasions. Fully charged it (took over 2 hours to charge from half battery) After the second attempt the pump battery was empty.. Charged up again, 3rd occasion trying to jump start it, still didn't manage to start it.Requested return, and their return is ridiculous, royal mail from home, as I work, I'm never in when Royal mail deliver/collect so I'm unable to return due to having to be in for them to collect. It may be more compatible for a tiny petrol engine like a 1.0 but no good for heavy diesel vehicles with an 80AH+ battery.Giving it 2 stars because the air compressor worked fine. But you can pick tyre compressors up now for less than £15

SYTUNG Car Battery Booster Jump Starter Power Pack is peace if mind in your car. Ladies it is so simple to use, so compact and will charge your phone and run your tablet/computer. What's not to like. The price is right. A no brainer.

Was a bit concerned as it was cheap price. The instructions are a bit lacking but the product really works well. Started Car easily with flat battery. Not used pump on Car yet but pumped up e-bike tyres easily

IT'S OK IF YOU HAVE A LOW BATTERY BUT NOT A COMPLETELY FLAT ONE . FAILED ON MY CLASSIC MINI WHICH HAS A LOW AMPERAGE DRAW