A jump starter with a built-in air compressor covers the two roadside problems drivers run into most, a dead battery and a low tire, with one box in the trunk. Spec sheets from AUXBEAM, AstroAI, Forney and Wagan show how far apart these combos are. Peak current runs from 1,500A to 3,500A, battery capacity from 37Wh to 124.8Wh, and listed airflow from 26 to 35 liters per minute. I put the AUXBEAM 3500A through a real dead-battery start on my own car. For the other three, I went through each maker’s product page and spec sheet to see which combo fits which driver.
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Quick picks
| Pick | Best for | Peak amps | Engine rating (maker) | Max pressure | Maker price (Oct. 17, 2026) |
|---|---|---|---|---|---|
| AUXBEAM AJ3500 | Most drivers; the one I’ve tested | 3,500A | 8.0L gas / 6.0L diesel | Listed as 120–160 PSI (see note) | $129.99 (sale; $169.99 regular) |
| Forney Frontline 1750+ | Trucks, UTVs, trail rigs | 1,750A | 7.5L gas / 5.0L diesel | 150 PSI | $264.99 |
| AstroAI MF159 | Bigger cars on a budget | 2,500A | 7.5L gas / 5.0L diesel | 150 PSI | Check current price |
| Wagan iOnBoost V10 Air | Smallest, lightest kit | 1,500A | 7.8L gas / 6.7L diesel | 150 PSI | $139.95 |
Prices are from each maker’s own store on the date shown and change often. AstroAI’s store page didn’t list a price when I checked.
What to look for in a jump starter and compressor combo
Engine rating matters more than peak amps
Peak amps are the headline number on every box, but they aren’t measured the same way from brand to brand. The more useful figure is the maker’s engine rating, the largest gas and diesel engine it’s designed to start. Diesels need much more cranking power than gas engines of the same size, so check the diesel number if you drive one. For more on how a jump pack’s current reaches the starter, see our NOCO GB40 step-by-step guide.
Battery size decides how much inflating you can do
A compressor uses far more energy than a jump start. A jump takes a short, heavy burst, while topping off four tires can mean several minutes of steady draw. Battery capacity, listed in watt-hours (Wh), is the best clue to how much inflating you’ll get before it needs a recharge.
Airflow and duty cycle
Airflow in liters per minute (L/min) tells you how fast it fills a tire. Duty cycle tells you how long it can run before it needs to cool. Forney is the only maker here that publishes one: “5-minute on / 30-minute off.” Plan on similar cooldowns for the others. AUXBEAM’s instructions also remind you to let the air hose cool before you pack it away.
Spec comparison
| Spec | AUXBEAM AJ3500 | Forney 1750+ | AstroAI MF159 | Wagan V10 Air |
|---|---|---|---|---|
| Peak current | 3,500A | 1,750A | 2,500A | 1,500A |
| Starting / cranking current | 400A | Not listed | Not listed | 300A |
| Battery | 10,400mAh, 124.8Wh, Li-polymer | 51.8Wh, Li-ion | NMC lithium | 37Wh (14.8V), Li-polymer |
| Airflow | 26–28 L/min | 35 L/min (1.2 CFM) | See note | 30 L/min |
| Max pressure | 120–160 PSI (see note) | 150 PSI (10–150 range) | 150 PSI | 150 PSI |
| Auto shut-off at set pressure | Yes | Yes (Auto-Shutoff, Memory, Dwell, Manual) | Yes (LCD) | Yes, 4 presets |
| USB | USB-C in (5–20V), USB 5V/2A out | USB-A and USB-C | Yes | USB-C in 5V/2A, USB-A 5V/2.1A out |
| Operating temp | -4°F to 140°F | Not listed on page | Not listed on page | -4°F to 131°F |
| Weight | Not listed on page | Not listed on page | 2.43 lb | 1.65 lb |
Notes: AUXBEAM’s own product page lists the AJ3500 at 120 PSI in its title and 160 PSI in its spec table, and the Amazon listing showed 150 PSI. All three are above what a car tire needs, typically 30–40 PSI. AstroAI’s spec table lists an airflow figure far above the others, so I’ve left it out until I can measure it myself.
AUXBEAM AJ3500: tested on a completely dead battery
I tested the AUXBEAM on my Lexus when the battery was so far gone that no dash lights came on at all. I clipped on red to positive and black to negative, waited a few seconds, and the car started almost immediately. You can see the whole thing in the video above and in my full AUXBEAM 3500A jump starter review.
The compressor works the way it should. You set the target pressure on the screen, connect the hose, and it stops on its own when it gets there. AUXBEAM’s spec table lists a 10,400mAh (124.8Wh) battery, by far the largest of these four. That’s the main reason it’s my pick for people who expect to use the inflator a lot. AUXBEAM rates it for gas engines up to 8.0L and diesels up to 6.0L, and for operation from -4°F to 140°F.
Worth knowing: AUXBEAM says new units ship partly charged for transport safety, so charge it fully over USB-C before you put it in the trunk.
See the AUXBEAM AJ3500 on AUXBEAM’s store.
It is also on Amazon: AUXBEAM 3500A jump starter with air compressor.
Forney Frontline 1750+: built for trail rigs
Forney, better known for welding gear, pitches the Frontline 1750+ at “trucks, SUVs, work rigs, UTVs, and adventure vehicles.” Its compressor has the highest listed airflow here at 35 L/min (1.2 CFM), and it comes with a 30-inch braided hose with a locking chuck. That’s handy when you’re airing back up after a trail with the tires at low pressure.
The compressor has four modes: Auto-Memory, Auto-Shutoff, Dwell and Manual. Forney’s spec sheet lists both a Smart Jump Start and a Force Jump Start mode. The battery is 51.8Wh, and the published 5-on/30-off duty cycle means it’s built for roadside top-offs, not inflating four big off-road tires back to back. At $264.99, it’s the priciest pick here.
See the Forney Frontline 1750+ on Forney’s site.
AstroAI MF159: a mid-size option
AstroAI’s MF159 sits between the others: 2,500A peak, rated for 7.5L gas and 5.0L diesel engines, a 150 PSI compressor and an LCD. AstroAI lists it at 2.43 lb and 5.31 × 7.17 × 5.31 inches, so it’s chunkier than the Wagan. AstroAI also sells a lighter MF139 (1,750A, 150 PSI) and a T8 (2,500A) with no compressor, which is useful if you already own a separate inflator.
See the AstroAI MF159 on AstroAI’s store.
Wagan iOnBoost V10 Air: the compact one
Wagan’s V10 Air is the smallest kit here, at 7.1 × 3.3 × 2.5 inches and 1.65 lb. Even so, Wagan rates it for gas engines up to 7.8L V10 and diesels up to 6.7L, and lists up to 25 jump starts per charge “depending on vehicle and battery conditions.” The compressor has four presets (car, motorcycle, bicycle and ball) and moves 30 L/min.
The small size comes with trade-offs. The 37Wh battery is the smallest here, and Wagan lists the jumper cables at just 12.8 inches, so the pack has to sit close to the battery. Charging takes 4–5 hours over 5V/2A USB-C.
See the Wagan iOnBoost V10 Air on Wagan’s store.
It is also on Amazon: Wagan EL7603 iOnBoost V10 Air.
How much inflating can you do on one charge? (estimates)
None of these makers list how many tires one charge will fill, so here’s rough math. Assume a small 12V compressor draws about 100–120W while running, and that topping off one car tire from 28 to 35 PSI takes about 2 minutes.
| Model | Battery | Usable for the pump (~70%, est.) | Approx. pump minutes | Approx. tire top-offs |
|---|---|---|---|---|
| AUXBEAM AJ3500 | 124.8Wh | ~87Wh | ~45–50 | ~20+ |
| Forney 1750+ | 51.8Wh | ~36Wh | ~18–21 | ~9–10 |
| Wagan V10 Air | 37Wh | ~26Wh | ~13–15 | ~6–7 |
These are estimates, not test results. Filling a flat tire from zero takes far longer than a top-off, and cold weather cuts battery output. Keep in mind the duty cycle, too. Even with plenty of charge, Forney’s 5-minute limit means you’ll pause between tires.
Combo or separate tools?
| Choose a combo if… | Choose separate tools if… |
|---|---|
| You want one thing in the trunk and you mostly top off tires | You air down off-road and need to refill four big tires often |
| You have limited space (sedan, hatchback) | You want the smallest possible jump pack in the glove box |
| You’d rather charge one device | You want one tool to keep working if the other is drained |
If you go separate, my reviews of the NOCO Boost Plus GB40 and the S ZEVZO H021 cover two jump packs without compressors.
Tips for keeping a combo ready
- Charge it as soon as it arrives. AUXBEAM ships units partly charged, and the others are lithium too.
- Top it up every few months and after every use, especially after running the compressor.
- Store it in the cabin in extreme heat or cold when you can. Wagan lists storage from -4°F to 140°F, and AUXBEAM lists 14°F to 122°F.
- Let the compressor cool between tires and before packing the hose away.
- Know your tire pressure. Use the number on the driver’s door jamb sticker, not the maximum printed on the tire sidewall.
FAQ
What is the best jump starter with an air compressor?
For most drivers, the AUXBEAM AJ3500. It started my car from a completely dead battery, and it has the largest listed battery here at 124.8Wh. The Forney Frontline 1750+ suits trail rigs that need faster airflow, and the Wagan V10 Air is the smallest.
Can a jump starter with an air compressor start a diesel truck?
Check the maker’s diesel rating. Wagan lists up to 6.7L diesel, AUXBEAM 6.0L, and Forney and AstroAI 5.0L. Large diesels in cold weather can need more, so give yourself some margin above your engine size.
How long does it take to inflate a tire?
Topping off a car tire by a few PSI typically takes a minute or two. Filling from flat takes much longer. Forney’s 35 L/min is the fastest listed airflow here.
Can I use the compressor while the unit is charging?
None of these makers clearly say so on their product pages. Unless the manual says otherwise, run the compressor on battery and recharge afterward.
Do these work on 24V trucks?
No. All four are 12V jump starters.
How often should I recharge a jump starter that sits in the car?
Every three months is a good habit, and always after use. Lithium packs hold their charge well, but heat in a parked car speeds up self-discharge.
Bottom line
If you want one roadside tool that handles both a dead battery and a soft tire, the AUXBEAM AJ3500 is the one I’d keep in my own trunk. It worked on a dead battery in my test, and it has the most battery for inflating. Off-road drivers who air down should look at the Forney for its airflow and long braided hose. Anyone short on space should look at the Wagan V10 Air.