The truck clicks at the gate at 6am. The nearest neighbour is four miles off. Roadside wants a street address.
For homestead and small-farm owners, the two things that stop the morning — the old truck dead at the gate and a tire gone soft on the track — are fixed by one hand-sized unit in the door pocket: it starts the truck itself in about three minutes with clamps that cannot spark, and it fills the tire to your number and stops itself, right there in the yard. No second vehicle, no second person, no driver who can't find the road. Red clip, black clip, green light, key. Hose on, press start. It does the mower and the four-wheeler too.
Everything it does, in 35 seconds — the tire, the battery, the phone.
Why two? Because the one in the farm truck gets used at the gate, and the one in the other car is the one that stops a call from the plant parking lot at the end of a night shift. $109.00 for two is $29 less than buying twice.
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A farm truck is nothing but short trips. The gate, the feed store, the far field and back — a battery never gets a long run to recharge. It fades for weeks and picks the coldest 6am. The device costs less than one emergency vet visit rebooked.
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At $6.68 diesel, every soft tire on the property is a slow leak in the tank
Truck, trailer, four-wheeler, mower — twelve or sixteen tires, all losing a pound a month, none with a light. For a small property that's roughly $250–400 a year in diesel and tire wear before a single blowout. And the pump in town is the expensive way to fix it: eighteen miles round trip is $8 of diesel to buy $2 of air, for the one vehicle you drove there. Ninety seconds at the gate, on whatever has wheels, to the number on the sidewall — and it stops itself.
Not a battery. The appointment you can't get back.
In town a dead battery means you're late. Out here it means the feed run doesn't happen, the vet slot goes to Monday and comes back as an emergency, the market stall opens at 8:40 instead of 7, and the chores slide into the dark. You're not stranded — the whole day is.
And it isn't carelessness. A farm truck does thirty short trips a week with the doors open and the engine off, and never gets the long run a battery needs to recover. It fades for weeks. The slow crank on Tuesday was the warning. Thursday at the gate is the bill.
See it working — the tire, then the van
Nothing sped up, nothing cut. The hose goes on the valve, the pump runs and stops itself at the number. Then the clamps go on a van battery: red, black, green light, start.
Watch how little the person does. Screw on, press, wait. That's the whole skill.
How to use it — it's genuinely this easy
This is the entire manual, honestly.
Low tire
- Screw the hose onto the tire valve — same fitting as the gas station pump.
- Press the car button. It sets itself to what a car tire needs (your exact number is on the sticker inside the driver's door).
- Press start. It fills, then stops itself at the number — you can't over-inflate.
About 90 seconds on a low tire, and it stops itself.
Won't start
- Clip red to red, black to black on the battery.
- Wait for the steady green light — the smart cable checks everything for you first. If anything is wrong, it does nothing and tells you.
- Turn the key. The car starts. Unclip and drive.
The clamps cannot spark — ever. People who have never used jumper cables do this on the first try.
6:10am, the gate, and the only other person is at work
Feed done, truck loaded, vet at eight. The truck clicks. Your partner's car is at the plant, the neighbour who might be up is four miles away, and roadside wants a cross street your road doesn't have.
Now: red clip, black clip, wait for the green light, turn the key. The truck starts. You drop the unit back in the door pocket and you're through the gate with time to stop for coffee. Nobody had to come. You had the thing.
The tire light that's been on since Wednesday
The gas station is nine miles, opens at seven, and its pump has been broken since spring. So you drive it soft, and the slow leak becomes a flat on the county road with the market stall waiting.
Ninety seconds in the yard: hose on, press start, it stops itself at the number. Light off. The same pump does the wheelbarrow, the ATV and the trailer tires, and the clamps start the mower and the four-wheeler that die in the shed every spring. On a long day the side port keeps the phone alive.
What you'll actually experience
It's loud. Like a small hair dryer, for about ninety seconds. Anything that moves air this fast is.
Give it a top-up charge every 2–3 months. Like a phone you rarely use. Door pocket, not trunk, is what makes this easy to remember.
It starts 12-volt gas engines — the truck, the car, and most riding mowers and ATVs. Not a diesel tractor. If that's what you need started, email us the engine size first and we'll tell you straight.
A completely flat tire takes longer. About 6–7 minutes instead of ninety seconds. And if the tire has a hole, air won't fix it.
Below freezing, fewer starts per charge. That's lithium batteries, not a defect. Go into winter charged.
It wants at least half a charge to start a car, and it isn't waterproof. Keep it charged, keep it dry — that's the whole care routine.
A battery that has genuinely died won't come back. This starts a car whose battery is flat — lights left on, a cold night, a van that sat all weekend. If the battery itself has failed, you need a new battery. This gets you to the shop to buy one instead of paying for a tow to get there.
Compared to what you'd do otherwise
| JumpAir Pro | Roadside to the property | Cables + a neighbour | Wait for your partner | |
|---|---|---|---|---|
| Where it happens | At the gate, in the yard | If the driver finds the road | Four miles and a phone call away | The end of their shift |
| How long | About 3 minutes | 60 to 100 minutes | 30 min, if they're up | Hours — the appointment is gone |
| What it costs you | $69.00, once | The morning, and tow miles if it's flat | A favour, and a spark risk | The day |
| Fixes the tire too | Yes — truck, ATV, trailer | No | No | No |
What the numbers on the screen mean
In plain words — because nobody should need an engineering degree to put air in a tire.
The exact numbers, if you like details
Battery: 10,000 mAh (29.6 Wh) · Starting power: 800 A peak (400 A start current) for 12 V car and van batteries · Pump: 90 W, runs up to 20 minutes continuously · Recharges by USB-C fast charging (18 W) · Presets: car 36 PSI, motorcycle 32, bicycle 30, ball 8, custom · Units: PSI, BAR, KPA, kg/cm² · Smart clamp with reverse-polarity and short-circuit protection · Light: white, SOS, and fast-flash · Works from -10°C to +45°C · Fills a completely flat car tire in about 6.5 minutes · Spark-proof clamps · CE and FCC certified · If stored unused, charge every 3 months.
What's in the box
The JumpAir Pro · the smart jumper clamps · the air hose · 4 nozzle tips (bike tires, balls, inflatables) · USB-C charging cable · a one-page guide you won't actually need. Nothing to assemble.
Questions, answered honestly
Will it start an old farm truck, not just a car?
Yes — 12 V gas trucks, cars and SUVs, rated at 800 A peak, with a rescue mode for a battery so drained the device can't detect it. Not a diesel tractor: for anything diesel, email us the engine size before you buy and we'll tell you straight.
Will it start the mower and the ATV?
Most riding mowers, ATVs and UTVs run a 12 V battery, and yes — the same clamps, the same three steps. It's the spring job in the shed that this quietly takes over.
I have roadside through the insurance. Why this?
Roadside sends a driver after — sixty to a hundred minutes to a gravel road, and only if they can find it. This is the version where nobody has to come and the vet slot happens. Keep the coverage for what this can't fix: a hole in the tire, a snapped belt, a battery that has genuinely died.
Will it fill the truck's tires, the ATV, the trailer?
Yes. Set the number, press start, it stops itself there. Truck tires, the ATV, the utility trailer, the wheelbarrow with the right nozzle. A completely flat truck tire takes six or seven minutes rather than ninety seconds.
Is it safe if I've never touched a car battery?
That's exactly who the clamps were designed for. They cannot spark, they detect reversed connections and short circuits, and they simply do nothing until everything is right — then the green light tells you.
Will it be dead when I actually need it?
It holds its charge for months, but give it a top-up every 2–3 months, like a phone you rarely use. Keeping it in the door pocket rather than the trunk is what makes people remember. The ones that fail are the ones people never see.
Does it work in cold weather?
Yes, from -10°C (14°F) — and it watches its own temperature. Below freezing you'll get fewer jump starts per charge; that's lithium batteries, not a fault. Go into winter with it charged.
What if my battery is completely dead, not just weak?
It handles a normal dead battery — lights left on, a car that sat for days. And for a battery so drained the device can't even detect it, there's a rescue mode: a 2-second long-press forces the start. If a battery has genuinely failed, no jump starter fixes that — this gets you to the shop instead of paying for a tow to get there.
Will it work if my tire is completely flat?
Yes — about 6–7 minutes rather than ninety seconds. Important: if the tire went flat suddenly, or you can hear air escaping, or you can see damage, don't drive on it. Air won't fix a hole.
Is it loud?
Yes. Like a small hair dryer, for about ninety seconds on a low tire. Anything that moves air this fast is.
What if it breaks?
Email us with your order number and we replace it — that's the 12-month replacement warranty. And 60-day returns if you change your mind — we pay the return shipping. A person answers; support isn't outsourced.
How fast does it ship, and will I pay anything at delivery?
2–5 business days from our warehouse in Pennsylvania. The price on this page is the price you pay — free shipping, no taxes added at checkout, nothing owed to the courier at your door.
If it ever lets you down, we replace it.
Email support@jumpairpro.com with your order number. A person reads it and answers — usually the same day. 12-month replacement warranty, 60-day free returns.
JumpAir · 102 Queens Dr, King of Prussia, PA 19406, USA
$69.00Buy now