GOOLOO A3 Jump Starter with Air Compressor
A dead battery and a soft tire are the two ways a morning goes sideways, and this is one box that fixes both without a second vehicle or a stranger.
Spec check
| Jump | 3000A peak, rated to 9.0 L gas or 6.5 L diesel |
|---|---|
| Inflator | 150 psi, 35 L/min, shuts itself off at the pressure you set |
| Presets | car, SUV, bike, ball, and a custom setting; five nozzles in the case |
| Battery | 12,000 mAh lithium, rated past 1,000 charge cycles |
| Also does | 100 W USB-C in and out, 12 V port, work light with an SOS mode |
| Protections | reverse polarity, short circuit, over-current, over-temperature |
| Rated range | -4°F to 140°F |
Jumper cables need two things you do not have at six in the morning in a church parking lot: another vehicle, and somebody willing to stop. That is the whole case for a jump pack. The air compressor built into this one is the half we did not expect to use the most.
The inflator gets used more than the jumper
A battery dies every few years. A tire picks up a screw and reads soft on the first cold morning of the fall, and then again, and then again. Set the pressure you want, squeeze the trigger, and walk off — it stops on its own when it gets there, so you are not crouched in the dark holding a pencil gauge up to a streetlight. At 150 psi it will also air up a trailer tire or a wheelbarrow.
It will turn over a diesel
Three thousand amps, rated to nine liters of gas or six and a half of diesel. The clamps are reverse-polarity and spark protected, which matters at the end of a long day when you are working by phone light and your hands are cold.
Charge it, or it is a brick
Here is the part nobody says about any jump pack: it is a lithium battery, it self-discharges, and a parked truck in an Alabama July makes that worse. Throw it behind the seat and forget it for a year and it is dead the one morning you needed it. Top it off a few times a year. On USB-C that is about an hour and a half.
The verdict
The jump is the reason you buy it. The compressor is the reason it stays in the truck.
Skip it if
You are never far from a corded compressor and a second vehicle. This one earns its keep when you are alone, in the dark, and nowhere near an outlet.