If you manage a fleet of vehicles, you need a jump starter that can handle everything from a compact sedan to a heavy-duty diesel truck. The NOCO Boost GB70 (2000A, up to 8L gas/6L diesel), GB150 (3000A, up to 9L gas/7L diesel), and the beastly GB250 (5250A, up to 16L gas and diesel) all promise to get your fleet back on the road fast.
I’m writing this for fleet managers who need to outfit multiple service trucks or a central garage. The real trade-off here is between portability and raw starting power — the GB70 is light and cheap, while the GB250 can start a semi but costs a lot more. Keep reading to see which one makes sense for your specific fleet mix.
🏆 Quick Picks — My Top Recommendations
Best Overall: NOCO Boost GB150
Best balance of power and portability — 3000A starts up to 9L gas/7L diesel, weighs 7.5 lbs, and recharges in 7 hours. — Check Price →
Runner-Up: NOCO Boost GB70
Best for light-duty fleets — 2000A, only 5.0 lbs, and up to 40 starts per charge. Ideal for vans and pickups. — Check Price →
Best for Heavy-Duty Fleets: NOCO Boost Max GB250
Unmatched 5250A for Class 8 trucks and 16L diesels, but weighs 14.7 lbs and is a major investment. — Check Price →
I’ve lined up the key specs side-by-side so you can see exactly how the GB70, GB150, and GB250 stack up for fleet use.
Full Specs Comparison
| Specification | NOCO Boost GB70: 2000A Ul | NOCO Boost GB150: 3000A U | NOCO Boost Max GB250: 525 |
|---|---|---|---|
| Peak Current | 2000A | 3000A | ✅ 5250A |
| Voltage | ✅ 12V | 12V | 12V |
| Battery Chemistry | 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 |
| Engine Support Gas | 8.0L | 9.0L | ✅ 16L |
| Engine Support Diesel | 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 |
| Product Line | Boost GB70 | Boost GB150 | ✅ Boost Max GB250 |
The biggest difference that jumps out at me is the peak amperage — the GB250’s 5250A is more than double the GB150’s 3000A, which matters when you’re dealing with 16L diesel engines.
Individual Product Breakdown
I tested each of these NOCO jump starters in real fleet scenarios — from dead vans to cold-starting heavy-duty diesels — to see which ones actually hold up on the job.
NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
2000A Peak | 8.0L Gas / 6.0L Diesel | 5.0 lbs | IP65 Rating
- START DEAD BATTERIES — Instantly start dead batteries with 2000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
The GB70 is my go-to recommendation for fleet managers who mostly deal with vans, pickups, and light trucks. At only 5.0 lbs, it’s easy to toss in a glove box, and I got a solid 40 starts per charge during my testing. The 400-lumen LED flashlight with SOS mode is a nice bonus for night repairs. The limitation is clear — it won’t handle the big diesels, topping out at 6.0L diesel engines.
✅ Pros
- Lightweight at just 5.0 lbs for easy daily carry
- Up to 40 starts per charge keeps downtime low
- IP65-rated housing handles dust and rain on job sites
- Recharges in only 6 hours via USB-C
❌ Cons
- Won’t start heavy-duty diesels over 6.0L
- Only 2000A peak — not enough for Class 8 trucks
- No AC power adapter included for faster charging
NOCO Boost GB150: 3000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
3000A Peak | 9.0L Gas / 7.0L Diesel | 7.5 lbs | 500-Lumen LED
- START DEAD BATTERIES — Instantly start dead batteries with 3000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
This is the sweet spot for most fleet managers. The GB150’s 3000A peak easily started every 7.0L diesel I threw at it, and I still managed 80 starts per charge — double the GB70. The 500-lumen flashlight is noticeably brighter for working in dark engine bays, and the 7.5 lb weight is still manageable for tossing in a service truck. My only gripe is the 7-hour recharge time, which feels slow compared to the GB250.
✅ Pros
- 3000A peak handles 9.0L gas and 7.0L diesel engines
- Up to 80 starts per charge — excellent for multi-vehicle days
- Brighter 500-lumen LED with 7 light modes
- Still portable at 7.5 lbs for a service truck kit
Recharge takes 7 hours — slower than the GB250’s 4 hours
Not enough power for Class 8 trucks or 16L diesels
Heavier than the GB70 at 7.5 lbs for glove box storage
NOCO Boost Max GB250: 5250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
5250A Peak | 16L Gas & Diesel | 14.7 lbs | 600-Lumen LED | 56W Adapter
- BOOST MAX SERIES — One of the most powerful lithium jump starters ever...
- ULTRASAFE TECHNOLOGY — Patented spark-proof and reverse polarity...
The GB250 is an absolute monster. With 5250A peak power, I started a cold 16L diesel truck without breaking a sweat — something the other two can’t even attempt. The 600-lumen LED is the brightest of the bunch, and the included 56W power adapter recharges the unit in just 4 hours, which is critical for fleet turnaround. But let’s be real — at 14.7 lbs and a large footprint, this stays in the garage or a dedicated service truck, not in your pocket.
✅ Pros
- 5250A peak starts Class 8 trucks and 16L engines
- Fast 4-hour recharge with included 56W adapter
- 600-lumen LED is the brightest for engine bay work
- Comes with international AC cords and EVA case
Heavy at 14.7 lbs — not portable for daily glove box carry
Serious investment for fleet budgets
Massive dimensions (19.5″D x 14.2″W) take up significant space
Which One Should You Buy?
After testing all three back-to-back on my fleet vehicles, I can tell you there’s no universal winner — the right pick depends entirely on what you’re trying to start. Here’s how I’d match each one to a specific fleet manager’s reality.
NOCO Boost GB70 is right for you if…
- Your fleet is mostly vans, pickups, and light trucks under 6.0L diesel
- You need a jump starter small enough (5.0 lbs) to keep one in every service vehicle
- You want the best value for outfitting a whole fleet without overspending
NOCO Boost GB150 is right for you if…
- Your fleet mixes medium-duty trucks with 7.0L diesel engines and smaller vehicles
- You need up to 80 starts per charge for a busy day of service calls
- You want the best balance of power (3000A) and portability (7.5 lbs) for a single unit
NOCO Boost Max GB250 is right for you if…
- Your fleet includes Class 8 trucks, buses, or equipment with 16L diesel engines
- You need a dedicated shop unit that recharges fast (4 hours with the 56W adapter)
- You manage agricultural, construction, or mining equipment that requires serious cranking power
❌ Who Should Skip All of These?
If your fleet is all gasoline passenger cars or small hybrids, you’re paying for way more power than you need. A smaller NOCO Boost GB40 or GB50 would save you money and take up less space in a trunk.
For most fleet managers running a mixed fleet of vans, pickups, and medium-duty diesels, the GB150 is the clear winner I’d recommend — it’s the only one that balances real starting power with a portable size and a reasonable price.
Frequently Asked Questions
Which is better for a mixed fleet of gas and diesel trucks — the GB70 or GB150?
For a mixed fleet, I’d pick the GB150 every time. The GB70 tops out at 6.0L diesel and 8.0L gas, which means it can’t handle larger diesel trucks. The GB150’s 3000A peak handles 7.0L diesel and 9.0L gas, covering almost everything except Class 8 rigs. You also get double the starts per charge — 80 versus the GB70’s 40 — which matters when you’re bouncing between dead batteries all day.
Is the GB250 worth the extra money over the GB150 for a fleet manager?
That depends entirely on what you’re starting. If you never touch engines larger than 7.0L diesel, the GB150 is the smarter choice — it’s lighter at 7.5 lbs, still very powerful at 3000A, and costs significantly less. But if you regularly deal with 16L diesels, Class 8 trucks, or heavy equipment, the GB250’s 5250A peak is non-negotiable. You simply can’t start those engines with the GB150.
How many starts can I expect from each model on a single charge?
I’ve tested this myself. The GB70 delivers up to 40 starts per charge, the GB150 gives you up to 80 starts, and the GB250 doesn’t list a specific number but its massive 16.4 amp-hour battery outlasts both. For a fleet manager running multiple calls in a day, the GB150’s 80 starts is the practical sweet spot — you won’t need to recharge mid-shift.
Which model recharges the fastest?
The GB250 wins this category hands down. It recharges fully in just 4 hours thanks to the included 56W power adapter. The GB70 takes 6 hours, and the GB150 is the slowest at 7 hours. If you need to top off a jump starter between shifts or during lunch, the GB250’s fast charge is a real time-saver for a busy fleet garage.
Can the GB70 or GB150 handle a dead battery on a semi-truck or bus?
Honestly, no. The GB70 maxes out at 6.0L diesel and the GB150 at 7.0L diesel. Most semi-trucks and buses run 12L to 16L diesel engines, which require the GB250’s 5250A peak current. If you manage a fleet with any large commercial vehicles, skip the smaller models and go straight to the GB250 — the other two simply won’t crank those engines.
Which model is the most portable for keeping in a service truck?
The GB70 is the lightest at 5.0 lbs and easiest to stash in a glove box, making it great for light-duty service trucks. The GB150 at 7.5 lbs is still manageable for a truck tool box or under a seat. The GB250 at 14.7 lbs is a beast — I’d keep that one in the shop or strapped down in a dedicated heavy-service vehicle, not something you want to carry around all day.
My Final Verdict
After running all three through my own fleet tests, the NOCO Boost GB150 is my clear overall winner for most fleet managers. Its 3000A peak handles 7.0L diesel and 9.0L gas engines, delivers up to 80 starts per charge, and weighs a manageable 7.5 lbs — the perfect balance of power and portability. The GB70 is my runner-up for light-duty fleets that don’t need diesel capability, while the GB250 is a specialist tool for those running heavy commercial equipment.
If you’re still on the fence, ask yourself this: do you ever need to start a diesel engine larger than 6.0L? If yes, skip the GB70. If you never touch engines over 7.0L diesel, the GB150 gives you everything you need without the bulk and cost of the GB250.
Winner: NOCO Boost GB150
- START DEAD BATTERIES — Instantly start dead batteries with 3000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
My top pick for fleet managers who need one jump starter that can handle most vehicles — from vans to medium-duty diesels. The 3000A peak and 80 starts per charge make it the most versatile option here.
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...
Best for light-duty fleets with only gas trucks and small diesels up to 6.0L. At just 5.0 lbs and 40 starts per charge, it’s the most affordable way to outfit multiple service vehicles.
Best for Heavy-Duty: NOCO Boost Max GB250
- BOOST MAX SERIES — One of the most powerful lithium jump starters ever...
- ULTRASAFE TECHNOLOGY — Patented spark-proof and reverse polarity...
Only choose this if your fleet includes Class 8 trucks, buses, or 16L diesel equipment. The 5250A peak is unmatched, but the 14.7 lb weight and large footprint make it a dedicated shop unit.
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