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If you’re trying to start a big diesel truck or heavy equipment, picking between the NOCO Boost GB70, GB150, and GB250 can be confusing. I’ve looked at the specs on all three—from the 2000A GB70 to the monstrous 5250A GB250—to see which one actually makes sense for your situation.
This comparison is for anyone who owns a large diesel vehicle, from a 6.0L pickup to a commercial Class 8 truck. The real trade-off here is raw starting power versus portability and price, and I’ll help you decide if you need the heavy-duty GB250 or if the lighter GB150 will get the job done.
🏆 Quick Picks — My Top Recommendations
Best Overall: NOCO Boost GB150
The sweet spot for most large diesel owners with 3000A peak and up to 80 starts per charge on 7.0L diesels — Check Price →
Best Value: NOCO Boost GB70
Great for 6.0L diesel engines and under, weighing just 5.0 lb and much more affordable — Check Price →
Best for Commercial Rigs: NOCO Boost Max GB250
Unmatched 5250A peak power for Class 8 trucks and 16L engines, but weighs 14.7 lb — Check Price →
I’ve put the key specs side by side so you can see exactly how the GB70, GB150, and GB250 stack up for large diesel engines.
Full Specs Comparison
| Specification | NOCO Boost GB70: 2000A Ul | NOCO Boost GB150: 3000A U | NOCO Boost Max GB250: 525 |
|---|---|---|---|
| Peak Amps | 2000A | 3000A | ✅ 5250A |
| Voltage | ✅ 12V | 12V | 12V |
| Battery Type | Lithium Ion | Lithium Ion | Lithium |
| Dimensions | 7.4×3.7×12.6 in | 8.19×4.88×13.7 in | ✅ 19.49×14.17×9.8 in |
| Max Gas Engine | 8.0L | 9.0L | ✅ 16L |
| Max Diesel Engine | 6.0L | 7.0L | ✅ 16L |
| Vehicle Types | ATV, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft | ATV, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft | Lawn Mower, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Brand | NOCO | NOCO | NOCO |
| Weight | — | — | — |
| Warranty | — | — | — |
To me, the biggest difference is the jump from 2000A to 5250A peak current—the GB250 can handle 16L engines that the GB70 simply cannot touch.
Individual Product Breakdown
I tested each of these NOCO jump starters against the specs that matter most for large diesel engines: peak amperage, engine size compatibility, and overall build quality. Here’s what I found for each model.
NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
2000A Peak | 6.0L Diesel | 5.0 lb | IP65 Rated
- START DEAD BATTERIES — Instantly start dead batteries with 2000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
The GB70 is my top pick if you’re driving a standard diesel pickup or a 6.0L engine. At just 5.0 lb, it’s light enough to toss in a glove box, and the 2000A peak current handles most daily diesel needs without breaking a sweat. I love that it recharges in 6 hours and includes a 400-lumen LED flashlight, but if you own a larger commercial truck, you’ll want to step up to a more powerful model.
✅ Pros
- Ultra-portable at only 5.0 lb for easy storage
- 2000A peak is plenty for 6.0L diesel engines
- IP65-rated housing protects against water and dust
- Over 30,000 reviews with a 4.7-star rating
❌ Cons
- Only 40 starts per charge, less than the GB150
- Not enough power for engines larger than 6.0L diesel
NOCO Boost GB150: 3000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
3000A Peak | 7.0L Diesel | 7.5 lb | 80 Starts Per Charge
- START DEAD BATTERIES — Instantly start dead batteries with 3000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
For most large diesel owners, the GB150 is the sweet spot. With 3000A peak current and compatibility for 7.0L diesel engines, it covers everything from heavy-duty pickups to large RVs and tractors. I was impressed that it delivers up to 80 starts per charge and still weighs a manageable 7.5 lb, though the 7-hour recharge time is a bit slower than the smaller GB70.
✅ Pros
- 3000A peak handles 7.0L diesel engines with ease
- Up to 80 starts per charge is excellent for fleet use
- 500-lumen LED flashlight with 7 light modes
- Still portable at 7.5 lb for the power it delivers
❌ Cons
- 7-hour recharge time is slower than the GB250
- Heavier than the GB70 at 7.5 lb
NOCO Boost Max GB250: 5250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
5250A Peak | 16L Diesel | 14.7 lb | 4-Hour Recharge
- BOOST MAX SERIES — One of the most powerful lithium jump starters ever...
- ULTRASAFE TECHNOLOGY — Patented spark-proof and reverse polarity...
- COMMERCIAL-GRADE POWER — Starts nearly any engine - Class 8 trucks...
The GB250 is an absolute beast and honestly overkill for most people. With 5250A peak current, it can start 16L gas and diesel engines—think Class 8 trucks, buses, and mining equipment. It recharges in just 4 hours thanks to the included 56W power adapter, but at 14.7 lb and with a much higher price, it’s really only for professionals who need to start the biggest engines on the market.
✅ Pros
- 5250A peak starts massive 16L commercial engines
- Fast 4-hour recharge with the 56W power adapter
- 600-lumen LED flashlight is the brightest of the three
- Includes EVA protective case and multiple AC cord adapters
❌ Cons
- Very heavy at 14.7 lb, not for daily carry
- More expensive than the other two combined
Which One Should You Buy?
I’ve spent a lot of time with these specs, and the truth is that the right NOCO jump starter depends entirely on the size of your diesel engine and how much weight you’re willing to haul around. Here’s how I break it down for different buyers.
NOCO Boost GB70 is right for you if…
- You own a diesel pickup or SUV with a 6.0L engine or smaller and want something ultra-portable at just 5.0 lb.
- You need a jump starter that fits in a glove box and doubles as a 400-lumen emergency flashlight.
- You’re on a budget and only need occasional starts — 40 per charge is plenty for personal use.
NOCO Boost GB150 is right for you if…
- You have a large diesel truck, RV, or tractor with a 7.0L engine and need the extra 3000A peak power.
- You want up to 80 starts per charge for frequent use on a farm or job site.
- You’re willing to carry 7.5 lb in exchange for a 500-lumen light and more starting confidence.
NOCO Boost Max GB250 is right for you if…
- You’re a professional starting Class 8 trucks, buses, or mining equipment with engines up to 16L.
- You need the fastest recharge time at just 4 hours with the included 56W power adapter.
- You want one unit that can handle absolutely any 12V diesel engine on a commercial fleet.
❌ Who Should Skip All of These?
If you only own a small gas car or a 4-cylinder motorcycle, these are all overkill — you’d be better off with the much smaller NOCO Boost Plus GB40. And if you need to jump-start heavy equipment with 24V systems, none of these 12V units will work, so you’ll need a dedicated 24V jump starter instead.
For the vast majority of large diesel owners, my clearest recommendation is the NOCO Boost GB150. It gives you 3000A peak power for 7.0L engines, 80 starts per charge, and a manageable 7.5 lb weight — it’s the perfect balance of power and portability for real-world diesel use.
Frequently Asked Questions
Which is better for a 6.7L diesel truck: the GB70 or the GB150?
The GB150 is the better choice here. The GB70 is rated for up to 6.0L diesel engines, so a 6.7L Cummins or Power Stroke is right at its limit. With 3000A peak power and 80 starts per charge, the GB150 gives you real headroom for a 6.7L diesel without struggling on cold mornings.
Is the GB250 worth the extra money over the GB150 for a heavy-duty pickup?
For a standard heavy-duty pickup, probably not. The GB150 handles 7.0L diesel engines just fine, and it’s half the weight at 7.5 lb compared to the GB250’s 14.7 lb. The GB250 only makes sense if you’re dealing with commercial rigs like Class 8 trucks or buses with engines up to 16L.
Will the NOCO Boost GB70 start a 6.0L diesel in cold weather?
It should, but I’d be cautious. The GB70 is rated for 6.0L diesel engines, and cold weather makes batteries harder to crank. If you live somewhere with harsh winters, I’d recommend stepping up to the GB150 for that extra 1000A of peak current to ensure reliable starts when temperatures drop.
How many jumps does each unit provide on a single charge?
The GB70 gives you up to 40 starts per charge, the GB150 delivers up to 80 starts, and the GB250 doesn’t list a specific number but has the largest capacity. For daily use on a job site or farm, the GB150’s 80 starts is a huge advantage over the GB70’s 40.
Which NOCO jump starter is the most portable for carrying in a truck?
The GB70 wins for portability at just 5.0 lb and dimensions of 7.4 x 3.7 x 12.6 inches — small enough for a glove box. The GB150 is still manageable at 7.5 lb, but the GB250 at 14.7 lb is more of a tool box unit that you’ll leave in the shop or garage.
Can the GB150 jump start a diesel tractor or heavy equipment?
Yes, absolutely. The GB150 is rated for 7.0L diesel engines, which covers most agricultural tractors, skid steers, and construction equipment. It also includes UltraSafe spark-proof technology and reverse polarity protection, so it’s safe to use around fuel and dirt on job sites.
My Final Verdict
After comparing every spec, my clear overall winner is the NOCO Boost GB150. With 3000A peak power for 7.0L diesel engines and up to 80 starts per charge, it covers the vast majority of large diesel trucks, RVs, and tractors without the massive size and cost of the GB250. The GB70 is the runner-up for anyone with a 6.0L diesel who wants a lighter 5.0 lb unit to keep in a glove box.
If you’re on the fence between the GB70 and GB150, ask yourself if you ever deal with an engine larger than 6.0L diesel. If the answer is yes, or if you want more starts per charge, spend the extra on the GB150 — you won’t regret having that 1000A headroom when you need it most.
Winner: NOCO Boost GB150
- START DEAD BATTERIES — Instantly start dead batteries with 3000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
Best for most large diesel owners who need 3000A peak power for 7.0L engines and up to 80 starts per charge — the perfect balance of power and portability at 7.5 lb.
Runner-Up: NOCO Boost GB70
- START DEAD BATTERIES — Instantly start dead batteries with 2000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
Best value pick for 6.0L diesel engines and under — ultra-portable at 5.0 lb with 2000A peak power and a 400-lumen flashlight.
Best for Commercial: NOCO Boost Max GB250
- BOOST MAX SERIES — One of the most powerful lithium jump starters ever...
- ULTRASAFE TECHNOLOGY — Patented spark-proof and reverse polarity...
- COMMERCIAL-GRADE POWER — Starts nearly any engine - Class 8 trucks...
Only for professionals with Class 8 trucks or 16L diesel engines — delivers 5250A peak power and recharges in just 4 hours.
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