YaberAuto 9-in-1 Jump Starter with Air Compressor 5500A 150PSI Portable Car Battery Jump Starter (9L Gas/8L Diesel), 12V Jump Box Car Battery Jumper Starter Portable with Jumper Cables, 160W DC Out

Why I threw the YA70 in every vehicle I own

There are plenty of portable jump starters with bolt-on extras, but the YA70 is one of the few that balances power, size, and genuinely useful features without feeling gimmicky. After a few months of keeping it in trunks and tool bags, jump‑starting a couple of stubborn engines, and topping up tires and gear, it’s earned a permanent spot in my roadside kit.

Design, build, and what’s in the case

The YA70 is compact enough to live in a glove box or saddlebag, and it arrives in a molded EVA case that actually fits everything: the unit, heavy‑duty jumper leads, a detachable air hose, three inflation nozzles, a USB‑C cable, and a 12V cigarette-lighter adapter for the DC output. The shell feels dense and the ports are well capped. The jumper cables are longer and heftier than the typical mini-pack leads, which makes reaching awkward battery terminals much less frustrating.

Controls are straightforward: power, a light button for the flashlight modes, and a dedicated compressor button with presets and unit cycling on a bright LCD. The air hose screws on and off, which keeps the footprint small but brings some trade-offs I’ll cover later.

Jump‑starting performance

The headline spec here is 5500A peak with support for up to 9.0L gas and 8.0L diesel. Marketing numbers aside, what matters is whether it spins real engines in real conditions. In my use, it did.

• A cold-soaked V8 gas truck (battery under 11V): clamped on, waited for the green ready indicator, and the truck fired immediately.
• A smaller 3.0L diesel SUV with a tired battery: started on the first turn without needing the force-start mode.
• A garden tractor that had sat for a season: I did use force-start here (bypass for very low voltage), and it cranked to life.

The clamps are spark-proof and the pack throws up clear error indicators if you reverse polarity or get a poor connection. The force-start feature is powerful, but I only use it after cleaning terminals and confirming the pack’s standard start won’t engage—bypass modes deserve respect. Overall, the YA70 behaves like a bigger booster box but in a much smaller package, and it hasn’t once felt underpowered on 12V systems within its rating.

Cold performance is often where these packs fall apart. I ran a jump at about 20°F; the YA70 gave me a ready light and started the vehicle normally. It’s rated from -4°F to 140°F, and while I wouldn’t store any lithium pack in extreme heat, it stayed composed on both cold and hot days in the garage.

The air compressor is better than “just in case”

Integrated compressors are often an afterthought. This one isn’t. The YA70’s pump is quick for its size and genuinely useful.

• Speed: Topping a passenger tire from 24 PSI to 35 PSI took a hair under 5 minutes. Bringing a compact spare up to 60 PSI was slower, as expected, but still reasonable. The claimed 35 L/min feels believable in the first half of a tire’s fill.
• Accuracy: The readout was within 1 PSI of my handheld gauge. The auto shut-off hit the preset consistently.
• Presets and units: Five modes (car, bike, motorcycle, ball, custom) make it simple, and you can switch PSI, BAR, and kPa.

The detachable hose is great for packing, and the screw-on chuck seals securely. The downside is heat: after several minutes of continuous pumping, the hose warms up and the metal at the chuck gets hot. That’s normal for compact compressors, but it’s worth noting—use the silicone grip and give it a minute to cool between back-to-back fills. Noise is typical “small compressor”: audible but not obnoxious.

I’d still keep a dedicated shop inflator at home, but for roadside work, bikes, balls, and occasional tire maintenance, the built-in unit is absolutely up to the task.

Power bank and 160W DC output

Beyond jumps and air, the YA70 doubles as a power bank. The dual USB ports handled phone and tablet charging without drama. It’s not trying to be a fast-charge monster; it’s closer to reliable, steady output than cutting-edge USB PD.

The more interesting port is the 160W 12V DC output paired with the included cigarette-lighter adapter. That gave me flexibility to run small car accessories—think a 12V cooler for a short drive or a camp inflator. It’s not a substitute for a dedicated power station, but it’s a handy emergency tap that most jump starters don’t include.

The LED light is bright enough for under-hood work, and the SOS and strobe modes are nice to have if you’re roadside at night.

Safety and usability

The YA70 leans into safety: reverse-polarity, short-circuit, overload, over-temp, and under-voltage protections are all present, and the unit does a good job communicating what’s going on. The “honeycomb” heat management design isn’t just aesthetic; the unit never felt overheated even after running the compressor and then performing a jump. Extended jumper leads are a smart touch—every inch helps on modern, cramped bays.

The UI is about as friendly as these get. The LCD is legible in daylight and the buttons have clear feedback. I appreciate that it remembers the last pressure setting, so you’re not reprogramming it every time you top off the same tires.

Battery life and maintenance

Battery retention is the wildcard with any portable pack. Stashed in a trunk through late winter and early spring, the YA70 lost only a small amount of charge—enough that I still felt comfortable using it for a jump and a tire top-up without a recharge. On another occasion, I found it needed a top-off after a couple of months. That variability is typical of how lithium packs respond to temperature and storage conditions.

My practical advice:
- Store it in its case so the buttons aren’t accidentally pressed.
- Top it up monthly if you live in a place with temperature swings, or set a recurring reminder at least quarterly.
- Charge it after every jump or extended compressor session.

Charging is via USB‑C, which is convenient because I can use the same charger as my phone. A 20W wall charger brought it back to full over several hours. There’s no included wall brick.

Where the YA70 falls short

No tool is perfect. A few nits:

• The screw-on air chuck can get hot and, like all threaded chucks, can sometimes lightly grab a valve core if you’re not careful when removing it. A lever-lock chuck would be faster and cooler to the touch.
• The compressor’s duty cycle is finite. If you’re inflating multiple tires from very low to high PSI, budget in cool-down breaks.
• The USB outputs are fine, but not flagship-fast. If you want laptop-level USB‑C PD, you’ll need a different device.
• The display can be a bit washed out in direct noon sun at certain angles, though it’s still readable.

None of these issues are dealbreakers, but they’re worth knowing.

Who it’s for

• Drivers who want a single, compact kit that actually solves common roadside problems: dead batteries and low tires.
• Families managing multiple vehicles—one unit per glove box means fewer calls for rescue.
• Riders and powersports owners who value a small footprint but need real jump-start capability.
• DIYers who want a backup 12V power source for small accessories and an emergency light in one package.

If you already own a big shop compressor and a separate heavy booster, the YA70 won’t replace them. It will, however, cover 90% of what the average driver needs away from the garage.

The bottom line

The YA70 hits a rare sweet spot: strong jump-start performance, a genuinely useful compressor, practical 12V and USB power, and a compact, well-thought-out package. It’s not trying to be a mini power station, and it doesn’t need to be. As a road-trip and everyday insurance policy, it makes a lot of sense.

Recommendation: I recommend the YA70. It consistently started the vehicles I tried, the compressor is fast and accurate for real-world maintenance, and the safety-focused design and longer leads make it easier and safer to use than most compact packs. Add the 12V DC output and the tidy carrying case, and you’ve got a small kit that solves big headaches—exactly what a modern jump starter should do.