HALO Bolt Air+ AC 55500 Portable Car Battery Jump Starter | 100 PSI Air Compressor, 55.5Wh USB Power Bank with AC Outlet, Emergency Floodlight & Charger, Jump Cars SUVs & Trucks, Inflate Tires — Black

I keep a lot of gadgets in my trunk, but few have earned permanent residency like the Bolt Air+. After months of use across daily driving, weekend errands, and a couple of roadside hiccups, it’s become my go-to “do a little bit of everything” box: a jump starter, tire inflator, power bank, and emergency light, all in a package that’s small enough to tuck into a side cubby.

Design and portability

At 9.5 x 4.6 x 1.8 inches and about 2.5 pounds, the Bolt Air+ is compact enough to live in a glovebox or center bin, but it feels dense in a reassuring way. The casing is a sturdy matte shell with a subtle texture that doesn’t show scuffs. HALO includes a soft pouch that actually helps: the quick-start steps are printed on it, so you don’t have to dig up a manual when you’re flustered on the shoulder of a road at night.

The front edge is busy, in a good way. You get two USB-A ports, a port for the included AC wall charger, a DC output for the external 100W AC inverter module, and the compressor connection for the 24-inch hose. On top sit a clear digital display and a simple set of buttons to toggle between modes, set PSI for the compressor, and check battery status. The floodlight faces forward—plenty bright to illuminate a wheel well or signal to passing cars.

The jump starter you actually want to use

The whole point of a portable jump starter is that it should be foolproof when stress is high and hands are cold. The Bolt Air+ gets that right. The spark-proof clamps have a short, sturdy lead and plug into a protected port. Once connected to the battery, the unit performs a quick safety check; it won’t energize the clamps if polarity is reversed or if it senses a problem. On a frigid morning, I used it to bring a midsize sedan with a very sluggish battery back to life. Clamps on, safety light went green, press the button, start the car—done. No drama, no clicking.

Two practical notes from use:
- Keep the unit charged. I’ve had the best results jump-starting when the battery is above roughly 80%. That’s a good habit anyway, and the internal battery holds its charge well over a few months.
- Store the clamps where you can grab them quickly. The pouch keeps everything together, but I moved the clamps into a door pocket so I can get them out without dumping the whole kit.

Tire inflator: set it, press go

The integrated 100 PSI compressor is the other star here. I’ve topped off tires in my driveway and bumped a low tire from the mid-20s back to spec in a parking lot. You set the desired pressure on the screen, press start, and it runs to the target then stops automatically. The digital readout has been within a couple PSI of my handheld gauge—close enough that I trust it for day-to-day use. It’s not whisper-quiet (no small compressor is), but the sound is more “electric toothbrush times ten” than “shop compressor,” and it’s steady rather than rattly.

The included hose extension makes it easier to connect on deeper wheels, and the nozzle kit covers balls and inflatables. If you’ve only used cigarette-lighter inflators before, the lack of a tether to the car is liberating. You can move around the vehicle freely, check each valve at your pace, and you’re not tied to routing a cord awkwardly across a bumper.

A few realities:
- It’s a compact compressor. It’s perfect for top-ups and single-tire emergencies, not for airing up a full set from flat every weekend.
- In cold weather, expect it to take a few minutes per tire for larger SUV tires. That’s normal.

Power bank and AC inverter: handy, with sensible limits

The internal battery is 55.5Wh, which translates to a couple of phone charges or a meaningful bump for a tablet. The two USB ports deliver reliable, straightforward charging without any fuss. For bigger needs, the external 100W AC inverter module plugs into the unit’s DC port and gives you a standard wall outlet for low-power electronics—think laptops, small fans, camera chargers, or a modem during a brief outage.

This is where expectations matter. 100W is plenty for most laptops and many gadgets, but it’s not for space heaters, kettles, or anything with a heating element or high startup draw. As a rough reference, a 60W laptop will drain a 55.5Wh battery in around an hour or less once you account for conversion losses. That’s still enough to finish a presentation or get through a meeting, and it’s great in a pinch during travel or a short blackout.

Controls, safety, and ease of use

The interface is refreshingly simple. A single screen presents battery percentage, compressor mode, and PSI settings with clear digits. Buttons are tactile and logically placed. The floodlight cycles through steady and flashing modes—helpful for visibility on the shoulder. The clamps and compressor ports are keyed and solid, and overall the system feels thoughtfully designed to minimize user error.

HALO’s safety check for jump-starting is particularly comforting. If you’ve ever second-guessed a connection or worried about a spark, the combination of spark-proof clamps and the interlock that requires a green light before it energizes the leads makes a big difference in confidence.

Charging, maintenance, and travel

Charging the unit from the wall is straightforward using the included AC adapter, and there’s also a car charger in the kit if you want to top it up on the move. In my rotation, the unit has held most of its charge over a few months of storage; I’ve fallen into a routine of checking it every quarter and topping it off. That cadence has kept it ready whenever I need it.

Another plus: it’s compliant with TSA rules for carry-on. I’ve tossed it into a carry-on bag for road trips that involve a flight and a rental car. As always, check your airline’s specific policies, but not having to leave it behind is a nice touch.

Build quality and what’s in the box

The “Black Wave” finish looks clean and holds up. The accessories round out the package: jumper cables, the external 100W inverter, AC wall charger, 12V car charger, 24-inch hose extension, nozzle kit, a USB-to-micro-USB cable for devices, and the pouch. Everything fits without a game of Tetris, and nothing feels like an afterthought.

Where it could be better

• AC headroom: 100W is the right call for size and heat, but it will frustrate anyone expecting to run high-draw appliances. If your emergency plan involves a heater or coffee maker, you’ll need a larger power station.
• Compressor speed: It’s perfectly adequate for top-ups and single-tire fixes, but it’s not the fastest inflator. For frequent all-four fills, a dedicated compressor will be quicker.
• No USB-C PD: Two USB-A ports work, but in 2025 I’d prefer at least one USB-C PD port for modern laptops and phones.

None of these are deal-breakers for the intended use, but they’re worth knowing before you buy.

Who it’s for

• Drivers who want a single, compact kit to handle the most common roadside issues: a dead battery and a soft tire.
• Parents outfitting teen drivers with a safety net that’s easy to use correctly.
• Travelers who want a carry-on–friendly backup power source and a way to top up tires at a rental lot without hunting for a gas station air pump.
• Home users who appreciate a versatile power bank for lights, laptops, and small devices during brief outages.

The bottom line

The Bolt Air+ hits a smart balance. It’s small enough to live in your car without thought, easy enough to use under stress, and versatile enough to cover the big two roadside headaches while also serving as a practical power bank. The compressor’s auto-stop and the jump starter’s safety checks make it approachable, and the addition of an AC outlet (within reasonable limits) broadens its usefulness without turning it into a bulky, heavy power station.

Recommendation: I recommend the Bolt Air+ for anyone who wants an all-in-one emergency tool that’s genuinely practical. It jump-starts reliably, inflates tires with minimal fuss, charges everyday devices, and it’s compact enough that you’ll actually keep it with you. Just set your expectations on the AC output—this is for laptops and lights, not heaters—and keep it topped up. As a glovebox safety net and a travel-friendly helper, it’s one of the few multi-function tools that earns its keep.