GOOLOO A3 Jump Starter with Air Compressor, 3000A Portable Car Battery Booster (9.0 Gas/6.5L Diesel) with 150PSI Auto-Shutoff Tire Inflator, 12V Supersafe Lithium Jump Box Car Battery Jumper Starter

Small, Powerful, and Peace of Mind in the Trunk
I ordered the GOOLOO A3 specifically because it claims to have enough juice to fire up a big V8. I haven’t had to test that feature yet — and hopefully never will — but knowing it’s capable is exactly the peace of mind I wanted in my trunk.So far, I’ve only used it once to fully inflate a low tire on my car. It did the job without any trouble. I was happy that it arrived at 80% charge right out of the box, so I didn’t have to wait before putting it to use. After inflating the tire, it’s still at 76%, which tells me it holds a charge well.It’s compact enough to fit in a glove compartment, but I keep it in the trunk so I have space up front for all the usual required paperwork and other odds and ends. Between its size, power rating, and the built-in air compressor, it’s a tool I’m glad to have for roadside emergencies.Pros: Claimed power to start a big V8, Arrived pre-charged at 80%, Fully inflated a tire with minimal battery loss, Compact size for glovebox or trunk storageCons: Haven’t tested jump start feature yet (hopefully won’t need to)

Good jump pack with a compressor.
Great booster pack, well built and fits in my center console. A little slow on the compressor side, but the primary use is for the booster pack.

Inflated tire 11 psi quickly. Good for emergencies.
Just used this for the first time to inflate a low tire. It inflated it from 24 psi to 35 psi in the time it took me to check the other three tires. Battery is still showing full so I would expect it to inflate many tires without recharging. Haven’t used it for jump start yet but I was pretty impressed with the tire inflator function. 

Excellent! This worked great where others failed! cheaper than a tow!
My old Jeep Liberty (2005) has some phantom battery drain.During a cold spell (-10 C / 14 F) my car would not start.My older Loftek smaller jump starter that used to work with my older Honda CRV was totally unable to start my Jeep.A neighborhood mechanic jump started me using a Noco and a spare battery.My alternator was fine, and my Jeep’s battery is a Duralast that I purchased a month earlier.I bought a Noco “Used Like New” but it was defective, and another random brand here on Amazon, which had no boost/override button. so I sent them back.The Noco’s downside was that it still uses Micro USB and it charges slowly.After going through a rabbit hole I decided to take a chance with the Gooloo. I was worried that the model with the air compressor/tire inflator would not be as good as just their dedicated models.But this worked flawlessly on some more freezing days. The first time I had to press the “boost” button on the cables to start the car. A few days later when it was warmer it just started it right away.I tried the compressor / tire inflator on my front tire that has a slow leak. It went from 26 to 33 PSI in about 90 seconds and the indicator was still showing full charge.So this is a great buy.I have a AAA membership, but you get only 4 roadside assistance services for free per year. I would rather call the AAA assistance only when there is some serious breakdown. Also often you have to wait an hour or more for service.This jump starter/ tire inflator is cheaper than calling the AAA after you used up all your 4 service calls, or better than hoping someone will stop and jump you with cables.I have a separate dedicated tire inflator compressor that is powered by the cigarette lighter plug. I would rather use that and keep the Gooloo for emergencies or as a backup.It is great! totally recommended. I store it in a fire proof LiPo bag, as I am not sure if this is Lithium or LiPo, but in any case it seems very powerful.Totally worth the money.