GOOLOOGT4000S Jump Starter 4000A 100W 2-Way Fast Charging, 12V Portable Car Battery Booster Pack,IP65 Power Bank Charger Box with Jumper Cables for all gasoline or 10L diesel engines

So these were on special the other week and I purchased one on a whim as my other half of the type that is always pumping her tyres up and having to plug in a cable and then feed through to other side of car is a pain and always when you’re in a rush to get out!What attracted me to this was the complete cordless compressor rather than the jump pack as I already have a professional 24v one but that’s an added bonus.Out of the box the unit was at 75% charge but plugged into the USB socket on the wall to fully charge. Note there is no mains adapter with this but if you have USB mains sockets they provide enough juice.Very next morning (Easter Monday) we get the opportunity to use it as we came out to a completely flat tyre.Press and hold the power button and she comes to life. Easy to set the required pressure and a proper lever type adapter. Press the power button momentarily and the compressor starts. It’s a little noisy but all compressors are.On her 18 inch focus 235’s from flat to 36psi took a couple of minutes. I was quite impressed. I did note that the battery had dropped by 1 bar of the battery charge indicator. So in theory you could do the whole car from flat and then have to charge it again.It comes in a soft but tough thick materials carry case that is bigger than the device so no snug fit covers that rip as you get with others. All the accessories and leads all fit inside the case too. parts also no more trying to squeeze everything in.I was impressed that much I put an order in for another one! So we have one per main vehicle. With our corded ones in there as a back up.One word of advice - make sure you do NOT leave this in the passenger compartment of a car as during the summer months the vehicle can get so hot that you could cause battery casings to warp. I had it on a professional jump pack, not this one but I suspect any battery device would be similar.Overall a great little device

Holds charge well. Bought this after previous starter, stopped working as needed. It was very old so to be expected. This one is very well designed and so far jump starts dead batteries with ease. Looks very slik too. Guides via a large clean and visible display. If the battery is totally dead, just a few seconds with the boost option and the car starts easily. Got at a discount offer so already great value for money.

Really compact and useful. I think great value and does the things we need it to.Have not even had to re-charge it yet.Pumped Tyres Bikes and Balls. Good adapters and also charged some mobile phones.

This is a brilliant bit of kit. Everyone should get one... Easy to use & works really well... I definitely recommend this device..

Excellent product

This is fantastic. The build quality is top rate the cables and clips are excellent. I had a bad experience before with another brand of booster so did not hold out any hope. I brought to start my sprinter van.This booster started my sprinter with ease and only used 5% of its power. I cannot recommend enough how good this booster is.

The media could not be loaded. Not very impressed, says it’ll do upto 60 starts in a single charge, tried to start a dead car that turned out to have no compression and after 4 seconds of cranking it lost 9% and it lost 3% just switching the ignition on. So that’s 10 starts at most. Nowhere near the 60 they claim. Wasn’t even anything impressive, it was a 1.6 petrol Mini Cooper. Can’t even send it back ‘cause it’s just coming upto 2 months, had I have noticed earlier how fast it depleted I’d have sent it back and got something else. It’s only when you get to those small numbers you notice things like that.

Despite its small size, this packs some punch. When you charge it, it retains for a long time, and when you use it to jump a flat battery, the %battery is displayed, so you can accurately tell how many jumps you'll get before charging. You just connect and press the boost button. Much safer than jumping from another car as i'm told that spikes in voltage that wasn't a problem for older cars can cause expensive damage to the ECU of newer vehicles. My friend got one and uses for his tractor. So useful to keep in the car, eg if away on holiday and your battery is flat in the airport longstay at midnight- you've got this in the boot. Or the awkward time a friend asks you to jump his car, but you'd rather not risk you own car's battery or electronics- lend him this. Really good value, and peace of mind. I better stop, as I sound like I am doing an advert rather than a review. As for how many years it lasts, no idea, but feels decent enough quality. Perhaps just a slightly longer lead might be beneficial, but will fit any battery I've seen.