The GOOLOO GP4000 packs 4000A of peak starting power — all-gas and up to 10.0L diesel engines, even with a battery too low to click. Add dual USB fast charging, an ultra-bright LED screen, and 9,000+ five-star ratings, and it earns a permanent spot in your trunk.
Rainy parking lots, dark country roads, school pickup — a flat battery always costs more than a jump.
One dead battery and a no-start morning can turn into a towing bill, a missed meeting, and hours at a repair shop waiting your turn.
Borrowed jumper cables need a second car pointed nose-to-nose — and a stranger willing to pop their hood in a downpour.
Low-amp packs give one weak click on a 6-cylinder and die. If the battery is truly low, they can't force a restart.
A slow leak at 7am is its own emergency — most drivers carry a jump starter or an inflator, never both.
4000A of starting power, precision inflation, and days of standby — engineered for the morning everything goes wrong.
Pain: Weak packs click once and quit.
4000A of peak current force-starts all-gas and up to 10.0L diesel engines. If the battery voltage is too low, the BOOST button forces the restart — no second car required.
4000A peak · BOOST override · Full protection
Pain: Slow pumps that overheat.
The bundled GT150 inflator fills a flat 205/55 R16 tire from 0 to 36 PSI in about 7 minutes, with 5 preset modes (car, motorcycle, bike, ball, custom) and auto shut-off at your target pressure.
150PSI max · 5 modes · 4 units (PSI/KPA/BAR)
Pain: Screens you can't read in daylight.
The ultra-bright LED display shows battery level, voltage, and tire pressure in crisp digits — readable even under direct sunlight, with a built-in LED light for night emergencies.
Sunlight-readable · Voltage readout · LED light
Pain: Boosters that lose charge in storage.
Massive capacity holds its charge for months in the trunk and recharges your phone, tablet, and accessories via dual USB ports (one fast-charge) plus USB-C 5V/3A input.
Months of standby · Dual USB + USB-C
Pain: Flimsy clamps and sparks.
Heavy-duty copper clamps with spark-proof design and reverse-polarity protection — wrong connections simply won't bite. Built to survive years of trunk duty.
Copper clamps · Spark-proof · Reverse-polarity safe
Pain: One-purpose gadgets.
Jump box, tire inflator, power bank, and emergency light in one — from roadside rescues to weekend camping, it covers the whole trip.
4 tools in 1 · Roadside + camping ready
Jump-starts, tire top-ups, and charging — timed and logged.
A 10-year-old sedan with a fully drained battery: clamps on, BOOST pressed, engine running in under a minute. No donor car, no waiting.
A slow-leaking front tire from 30 to 36 PSI in roughly 2 minutes, auto shut-off on target — quieter and steadier than the gas-station compressor.
Two phones, a tablet, and an LED lantern charged over a weekend without a wall outlet — with charge to spare for the drive home.
My truck sat for two months and the battery was completely flat. The BOOST button brought it back on the first try. This thing is a brick — feels built to last.
Used it three times on my bike and car tires. Set the pressure, walk away, it shuts off by itself. The screen is readable even at noon in Texas.
Bought it after a tow-truck bill. It's charged my phone more often than it's jumped my car, but that one jump already paid for it.
Prime members get free 2-day delivery on every order.
Don't love it? Send it back, full refund, no restocking fees.
Amazon's purchase protection backs every transaction.
GOOLOO backs the GP4000 with a 2-year warranty and lifetime support.
9,000+ buyers rated the GOOLOO GP4000 5.0 out of 5 — 4000A jump starts, precision tire inflation, and days of power bank duty.
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