Clore Automotive JNC660 vs WOLFBOX MV24A (MegaVolt 24Air)
Clore Automotive JNC660
WOLFBOX MV24A (MegaVolt 24Air)
The short answer
WOLFBOX MV24A (MegaVolt 24Air) comes out ahead overall with 7.5/10 against 6.6/10 for the Clore Automotive JNC660. Clore Automotive JNC660 is stronger on starting power and build quality & durability. WOLFBOX MV24A (MegaVolt 24Air) is stronger on battery capacity & standby, ease of use & safety features, versatility and value. At current verified prices, the Clore Automotive JNC660 costs about $13.97 less.
- Choose the Clore Automotive JNC660 if: Farms, shops and fleets that need long, repeated glow-plug cranks and can keep an 18 lb box on AC charge.
- Choose the WOLFBOX MV24A (MegaVolt 24Air) if: Truck owners in cold regions with half-ton pickups or diesels up to about 6L who also want tire air.
Scores by criterion
| Criterion | Clore Automotive JNC660 | WOLFBOX MV24A (MegaVolt 24Air) |
|---|---|---|
| Starting Power | 8.0425 cranking amps of sustained current; Outdoor Life says up to a 350 diesel; spec-based | 7.54,000A and a real diesel F-350 start (PopSci), but officially rated for only 6L diesel |
| Battery Capacity & Standby | 5.022Ah SLA; recharge after each jump | 7.588.8 Wh (rated); worked at 0°F in PopSci's real-world use |
| Ease of Use & Safety Features | 6.5Simple with long heavy cables, but 18 lb and AC-charge only | 7.0Good protections and display; no charging adapter included; short hose |
| Build Quality & Durability | 8.0Pro-grade shop box with a replaceable battery | 7.0IP64; 2-year warranty per manufacturer |
| Versatility | 3.0No USB, light or compressor | 8.5160 PSI inflator, 65W USB and a light |
| Battery Safety & Sustainability | 6.5Lead-acid is recyclable and the battery is replaceable, but it contains lead | 6.5Manufacturer states UL 2743 and UN38.3 (unverified) |
| Value | 7.0$126 is fair for a pro shop box | 8.0$140 for a pack and compressor with independent cold and diesel use |
Specifications
| Spec | Clore Automotive JNC660 | WOLFBOX MV24A (MegaVolt 24Air) |
|---|---|---|
| Peak Current | 1,700 A | 4,000 A |
| Max Gas Engine (rated) | — | 10 L |
| Max Diesel Engine (rated) | — | 6 L |
| Battery Chemistry | Sealed lead-acid (AGM) | Lithium (cell type not stated) |
| Rated Capacity | — | 88.8 Wh |
| Weight | 18 lb | 5.3 lb |
| Built-in Air Compressor | No | Yes |
| Compressor Max Pressure | — | 160 PSI |
| Max USB Output | — | 65 W |
| Water/Dust Rating | — | IP64 |
| UL 2743 Stated by Manufacturer | — | Yes |
| Min Operating Temperature (rated) | — | -4 °F |
| Automatic Cell Preheat for Extreme Cold | No | No |
Clore Automotive JNC660
Pros
- Sustained cranking current for hard starts
- Heavy 46-inch #2 AWG cables
- Replaceable battery
- Built-in automatic charger
- Moderate price
Cons
- 18 lb and not portable
- Charges only from 120V AC
- Must be recharged after each jump
- No USB or light
The practical choice for shops, farms and fleets with diesels that need repeated cranks and a place to plug in.
Full Clore Automotive JNC660 review →WOLFBOX MV24A (MegaVolt 24Air)
Pros
- Documented use at 0°F
- Built-in 160 PSI inflator
- 4,000A and 88.8 Wh
- Moderate price for the power
- Manufacturer states UL 2743 and a 2-year warranty
Cons
- Official diesel rating is only 6L
- Charging adapter not included in the Amazon listing
- Inflator hose can be short for large wheels
- Rated operating floor is -4°F
The best all-in-one for half-ton pickups and cold-region owners with moderate diesels. It sits a hair below the NOCO on score, and the order is close to a tie.
Full WOLFBOX MV24A (MegaVolt 24Air) review →Both products are part of our guide The Best Jump Starters for Cold Weather & Diesel Trucks of 2026, where you can see every pick, how we score and current prices from each retailer.