A dead battery is annoying in a garage and a much bigger problem when you are miles from one. The WOLFBOX MegaVolt 24Air is built for that second situation, combining jump starting, tire inflation, device charging, and emergency lighting in a 3.42-pound package.[1][6] The Clore Jump-N-Carry JNC660 takes a more traditional route with an 18-pound body, 46-inch heavy-duty cables, and a built-in automatic charger aimed at professional starting work.[7]
The WOLFBOX MegaVolt 24Air and Clore Jump-N-Carry make sense in very different places. The WOLFBOX MegaVolt 24Air belongs in a trunk, where weight and versatility matter, while the Clore Jump-N-Carry is easier to justify in a shop or fleet yard where vehicles come to the booster and portability matters much less.[1][7]
The Short Answer
The WOLFBOX MegaVolt 24Air is the better emergency choice for most individual drivers. The 3.42-pound WOLFBOX MegaVolt 24Air combines a 4000-amp published peak rating, built-in compressor, 65-watt USB-C charging output, and a 400-lumen emergency light, with lumens measuring light output.[1] Popular Science also used the WOLFBOX MegaVolt 24Air to start a crossover, a six-cylinder pickup, and a diesel Ford F-350 during hands-on testing.[2]
The Clore Jump-N-Carry is the better fit when jump-starting is the job rather than one part of the job. The 18-pound Clore Jump-N-Carry provides 46-inch #2 American Wire Gauge (AWG) cables and an automatic built-in charger suited to automotive service, fleets, dealerships, and other fixed working environments.[7] AWG is the sizing system used for electrical wire, with lower gauge numbers indicating thicker conductors.[9]
WOLFBOX MegaVolt 24Air vs Clore Jump-N-Carry Specifications
The specifications show why the WOLFBOX MegaVolt 24Air and Clore Jump-N-Carry behave like very different tools. The WOLFBOX MegaVolt 24Air uses a rechargeable lithium-ion battery, while the Clore Jump-N-Carry uses a sealed lead-acid battery, the traditional lead-based rechargeable design found in many heavy booster packs.[1][8] Peak amps refer to a published maximum-current figure, while the Clore's separate cranking-amp figure describes starting output rather than another directly equivalent peak rating.[2][7]
| Specification | WOLFBOX MegaVolt 24Air | Clore Jump-N-Carry JNC660 |
|---|---|---|
| Battery type | Lithium-ion [1] | Sealed lead-acid [8] |
| Vehicle system | 12 volts [1] | 12 volts [7] |
| Published starting rating | 4000 amps peak [1] | 1700 amps peak / 425 cranking amps [7] |
| Battery capacity | 24,000 mAh / 88.8 Wh [1] | Not published [7][8] |
| Weight | 3.42 lb [1] | 18 lb [7] |
| Cables | Integrated jump leads [2] | 46-inch #2 AWG [7] |
| Air compressor | 160 PSI / 45 L/min [1] | N/A |
| USB-C output | Up to 65 watts [1][2] | N/A |
| Emergency light | 400 lumens, three modes [1] | N/A |
| Charging | USB-C, about 1.5–2 hours [1] | Built-in automatic wall charger [7][8] |
| Accessory power | USB-A / USB-C / 160W DC output [1] | 12-volt accessory outlet [7] |
Away From Home, Weight Starts to Matter
The WOLFBOX MegaVolt 24Air is much easier to treat as permanent emergency gear. At 3.42 pounds, the WOLFBOX MegaVolt 24Air weighs less than one-fifth as much as the 18-pound Clore Jump-N-Carry, making the lithium pack easier to move between vehicles or carry to a stranded car.[1][7] Popular Science later selected the WOLFBOX MegaVolt 24Air for an emergency-roadside-kit guide, noting that the four-function design can replace several separate pieces of trunk equipment.[4]
The Clore Jump-N-Carry stops looking overly heavy when the booster stays in one place. It uses 46-inch #2 AWG welding-cable leads, giving a mechanic more reach around different engine bays.[7] The thick #2-gauge conductors also favor current-carrying capacity over the lightest possible cable construction.[9]
A Flat Tire Changes the Comparison
The WOLFBOX MegaVolt 24Air can solve a second common roadside problem without another tool in the trunk. The built-in compressor on the WOLFBOX MegaVolt 24Air is rated at up to 160 PSI, which measures air pressure, and 45 L/min, which measures airflow volume.[1] The compressor can also stop automatically when the selected pressure is reached.[1][2]
The WOLFBOX MegaVolt 24Air has been tested as a real tire inflator rather than simply advertised as one. Popular Science reported taking an SUV tire from 25 to 35 PSI in about a minute with the WOLFBOX MegaVolt 24Air, while Car and Driver named the WOLFBOX MegaVolt 24Air its Best Inflator/Jumper Combo in 2026 testing.[2][3] Car and Driver also featured the WOLFBOX MegaVolt 24Air among six useful upgrades for older cars, although the inflator test noted that the 20-inch hose can feel short on larger tires.[3][5]
The Clore Jump-N-Carry needs another tool when tire pressure becomes the problem. The published feature list centers on jump starting and 12-volt accessory power and does not include an integrated air compressor.[7]
Do Not Read 4000A vs 1700A as a Scoreboard
The headline amp numbers do not produce a clean winner. The WOLFBOX MegaVolt 24Air carries a published 4000-amp peak rating, while the Clore Jump-N-Carry lists 1700 peak amps and a separate 425 cranking amps.[1][7] Popular Science specifically cautioned that peak-current ratings can be difficult to compare directly between brands, so treating 4000 versus 1700 as an apples-to-apples performance test would be misleading.[2]
Real-world starting evidence tells us more about the WOLFBOX MegaVolt 24Air than the headline number alone. Popular Science successfully used the WOLFBOX MegaVolt 24Air on three different vehicles, including a diesel F-350, and reported enough remaining battery charge for additional starts after the hardest attempt.[2] The Clore Jump-N-Carry uses a different battery design and publishes a separate cranking-amp rating, so the comparison is better made around intended use than a single number.[7][8]
A Power Outage Gives the WOLFBOX More to Do
The WOLFBOX MegaVolt 24Air remains useful after the engine starts. The battery in the WOLFBOX MegaVolt 24Air is rated at 24,000mAh and 88.8Wh, with mAh meaning milliamp-hours and Wh meaning watt-hours, and the USB-C port can deliver up to 65 watts to compatible phones, tablets, and laptops.[1][2] Popular Science also highlighted the WOLFBOX MegaVolt 24Air as a jump starter, inflator, power bank, and flashlight in its coverage of WOLFBOX's 2026 Trail Season sale.[6]
The WOLFBOX MegaVolt 24Air also provides useful lighting when a breakdown happens after dark. The WOLFBOX MegaVolt 24Air has a 400-lumen LED with steady, strobe, and SOS modes, giving the same battery pack another practical emergency function.[1][2]
The Clore Jump-N-Carry keeps accessory power much simpler. The Clore Jump-N-Carry includes a 12-volt accessory outlet, but the published feature list does not include USB-C charging, an integrated emergency light, or an air compressor.[7] Those differences matter far more during a long roadside delay or power outage than during a routine jump start in a garage.
Where Each One Stops Making Sense
The WOLFBOX MegaVolt 24Air is not the natural choice for a high-volume shop that mainly needs repeated jump starts. The WOLFBOX MegaVolt 24Air is easier to carry and does more away from the garage, but a professional user may get more value from the Clore Jump-N-Carry JNC660's 46-inch cables, built-in automatic charging, and sealed lead-acid design focused on starting work.[1][7][8]
The Clore Jump-N-Carry is harder to justify as an everyday trunk tool. At 18 pounds, the Clore is far heavier than the 3.42-pound WOLFBOX MegaVolt 24Air while offering none of the built-in tire inflation, USB-C charging, or emergency lighting found on the WOLFBOX MegaVolt 24Air.[1][7]
Final Verdict
The WOLFBOX MegaVolt 24Air is the stronger all-around emergency tool for most drivers. The WOLFBOX MegaVolt 24Air combines jump starting, tire inflation, device charging, and emergency lighting in a 3.42-pound package, and independent testing supports both the starting and inflation functions.[1][2][3] For storm-season travel, road trips, or a general roadside kit, that flexibility is the bigger advantage.[4]
The Clore Jump-N-Carry JNC660 remains the better specialist when portability is secondary to traditional jump-starting duty. The Clore Jump-N-Carry offers 46-inch #2 AWG cables, 425 cranking amps, and automatic built-in charging in an 18-pound package aimed at professional starting environments.[7][8] For roadside preparedness, however, the WOLFBOX MegaVolt 24Air covers more problems with less equipment.[1][4]
Frequently Asked Questions
Is the WOLFBOX MegaVolt 24Air more powerful than the Clore Jump-N-Carry?
Not necessarily. The WOLFBOX MegaVolt 24Air has the higher published peak rating at 4000 amps versus 1700 peak amps for the Clore Jump-N-Carry JNC660.[1][7] However, peak-amp figures are not standardized across brands, and the Clore Jump-N-Carry also publishes a 425 cranking-amp rating that does not have a directly comparable WOLFBOX figure.[2][7]
Can the WOLFBOX MegaVolt 24Air inflate a car tire?
Yes. The WOLFBOX MegaVolt 24Air includes a compressor rated at up to 160 PSI and 45 L/min, and both Popular Science and Car and Driver tested the inflation function on real vehicles.[1][2][3]
Is the Clore Jump-N-Carry better for a professional shop?
Yes. The Clore Jump-N-Carry JNC660 uses 46-inch #2 AWG cables, a sealed lead-acid battery, and a built-in automatic charger, and the Clore Jump-N-Carry is marketed for professional starting environments including automotive service and fleet work.[7][8]
Can the WOLFBOX MegaVolt 24Air charge a laptop?
Yes, when the laptop supports charging within the available output. The WOLFBOX MegaVolt 24Air provides up to 65 watts through USB-C, and Popular Science reported that the output can charge many compatible USB-C laptops.[1][2]
Which jump starter is better for a storm-season emergency kit?
The WOLFBOX MegaVolt 24Air is the better fit for most individual drivers. The WOLFBOX MegaVolt 24Air combines jump starting, tire inflation, device charging, and emergency lighting in a 3.42-pound package, and Popular Science selected the same product for its 2026 emergency-roadside-kit guide.[1][4]
References
[1] WOLFBOX, "4-in-1 Jump Starter with Air Compressor Tire Inflator | MegaVolt 24Air" — Official Product Page
[2] Popular Science, "I Tested the Wolfbox 4-in-1 Jump Starter With Air Compressor During a Real-World Emergency" — Popular Science Review
[3] Car and Driver, "Best Portable Tire Inflators of 2026, Tested" — Car and Driver Best Inflators
[4] Popular Science, "How to Build the Best Emergency Roadside Kit" — Popular Science Emergency Kit Guide
[5] Car and Driver, "6 Gear Upgrades to Make Your Old Car Feel Brand New" — Car and Driver Upgrades Article
[6] Popular Science, "The Wolfbox Trail Season Sale Drops Prices on Dash Cams, Jump Starters, and More by Up to 50%" — Popular Science Sale Coverage
[7] Advance Auto Parts, "JUMP-N-CARRY 12V Professional Jump Starter, 1700 Peak Amps, 425 CA, 46-in Leads, Built-in Charger" — Advance Auto Parts Product Page
[8] Manuals+, "Jump-N-Carry JNC660 12 Volt Power Supply Jump Starter User Manual" — JNC660 User Manual
[9] Pro Tool Reviews, "What Is AWG or American Wire Gauge?" — Pro Tool Reviews AWG Guide
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