Jump Starters · Head-to-head
NOCO GBX155 vs WOLFBOX MegaVolt24 (MV24)
The short answer
WOLFBOX MegaVolt24 (MV24) comes out ahead overall with 8.1/10 against 7.8/10 for the NOCO GBX155. NOCO GBX155 is stronger on starting power. WOLFBOX MegaVolt24 (MV24) is stronger on build quality & durability and value. At current verified prices, the WOLFBOX MegaVolt24 (MV24) costs about $249.96 less.
- Choose the NOCO GBX155 if: Owners of large V8s, diesels or fleets who want the most proven power and capacity and will pay a premium.
- Choose the WOLFBOX MegaVolt24 (MV24) if: Most drivers, from compact cars to V8 pickups, who want one pack with plenty of power, a big usable battery and fast USB-C at a mid-range price.
Scores by criterion
| Criterion | NOCO GBX155 | WOLFBOX MegaVolt24 (MV24) |
|---|---|---|
| Starting Power | 9.34250A; best results in TechGearLab's test. | 8.3Three back-to-back starts on a drained Explorer; TechGearLab power sub-score 9.0. Capped for single-lab evidence and no cold test. |
| Battery Capacity & Standby | 9.086.1 Wh measured, the most usable energy in the pool. | 8.882.3 Wh measured of 88.8 Wh claimed (93%); 3% used per start; 65W recharge. |
| Ease of Use & Safety Features | 7.0Buttons and indicators are less clear than rivals' (TechGearLab). | 7.3Large LCD and a clear START indicator; stubby clamps struggle on cramped terminals; On button can be pressed accidentally in the case. |
| Build Quality & Durability | 7.5Solid build but 5.8 lb, no case, no IP rating confirmed. | 8.0IP64, storage case included, lifetime warranty listed by WOLFBOX. |
| Versatility | 7.560W USB-C PD; no compressor. | 7.565W USB-C PD and a light with strobe; no compressor. |
| Battery Safety & Sustainability | 6.0Spark-proof and reverse-polarity protection; 99 Wh; no UL 2743 confirmed. | 6.0Lithium-ion with reverse-polarity protection; no UL 2743 or other certification listed; no recalls found. |
| Value | 5.5About $370, roughly 3x the MV24's price. | 8.7$119.99 for near-flagship lab results; third-party seller and price swings noted. |
Specifications
| Spec | NOCO GBX155 | WOLFBOX MegaVolt24 (MV24) |
|---|---|---|
| Peak Current | 4,250 A | 4,000 A |
| Max Gas Engine (rated) | 10 L | 10 L |
| Max Diesel Engine (rated) | 8 L | 10 L |
| Battery Chemistry | Lithium-ion | Lithium-ion |
| Rated Capacity | 99 Wh | 88.8 Wh |
| Measured Usable Capacity (TechGearLab) | 86.1 Wh | 82.3 Wh |
| Weight | 5.8 lb | 3.2 lb |
| Built-in Air Compressor | No | No |
| Max USB Output | 60 W | 65 W |
| Water/Dust Rating | IP65 (ports closed) | IP64 |
| Min Operating Temperature (rated) | -4 °F | — |
| Automatic Cell Preheat for Extreme Cold | No | — |
NOCO GBX155
Pros
- Highest-scoring unit in TechGearLab's test
- Rated for 10L gas and 8L diesel
- 86.1 Wh measured usable battery
- Spark-proof and reverse-polarity protection
- Sold directly by Amazon
Cons
- Premium price
- Heavy at 5.8 lb, with no storage case
- Buttons and indicators are less clear than rivals'
- No air compressor
The pick for owners of large diesels and fleet vehicles who value proven power over price. Most drivers get more for their money elsewhere.
Full NOCO GBX155 review →WOLFBOX MegaVolt24 (MV24)
Pros
- Started a fully drained SUV three times in a row
- 82.3 Wh usable battery, close to the 88.8 Wh claim
- 65W USB-C can charge a laptop
- IP64 rating and a storage case included
- Light at 3.2 lb
Cons
- Stubby clamps can be hard to fit on cramped terminals
- The easy-press On button can be pressed in the case and drain the battery
- Amazon sells several variants with different diesel ratings, so check you get the 10L/10L, 88.8 Wh listing
- No built-in air compressor
The best balance of power, capacity and price for most drivers, from compact cars to V8 pickups. Confirm the exact 88.8 Wh variant when you order.
Full WOLFBOX MegaVolt24 (MV24) review →Both products are part of our guide The Best Jump Starters of 2026, where you can see every pick, how we score and current prices from each retailer.