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If you’re trying to start a big diesel truck or a large gas engine, you need serious cranking power. I’ve tested the NOCO Boost GB70 (2000A), the newer GBX75 (2500A), and the top-tier GB150 (3000A) to see which one actually gets the job done.
This comparison is for anyone with a large pickup, van, or RV who doesn’t want to get stranded. The main trade-off here is raw starting power versus portability and recharge speed. Let me break down exactly which model makes sense for your rig.
🏆 Quick Picks — My Top Recommendations
Best Overall: NOCO Boost GB150
The most powerful option with 3000A for 9.0L gas and 7.0L diesel engines — Check Price →
Runner-Up: NOCO Boost X GBX75
Fastest recharge at 1.8 hours and 2500A for 8.5L gas engines — Check Price →
Best Value: NOCO Boost GB70
Solid 2000A performance for 8.0L gas engines at a lighter 5.0 lbs — Check Price →
I put all three NOCO jump starters side by side so you can see the key specs that matter for large engines at a glance.
Full Specs Comparison
| Specification | NOCO Boost GB70: 2000A Ul | NOCO Boost X GBX75: 2500A | NOCO Boost GB150: 3000A U |
|---|---|---|---|
| Peak Amps | 2000A | 2500A | ✅ 3000A |
| Voltage | ✅ 12V | 12V | 12V |
| Battery Type | Lithium Ion | Lithium | Lithium |
| Max Gas Engine | 8.0L | 8.5L | ✅ 9.0L |
| Max Diesel Engine | 6.0L | 6.5L | ✅ 7.0L |
| Dimensions | 7.4×3.7×12.6″ | 7.28×4.84×9.8″ | ✅ 8.19×4.88×13.7″ |
| Vehicle Types | ATV/MC/Car/RV | ATV/MC/Car/RV | ATV/MC/Car/RV |
| Brand | NOCO | NOCO | NOCO |
The biggest difference I see is the GB150’s 3000A peak current for 7.0L diesel engines, while the GB70 tops out at 2000A for 6.0L diesel, making the GB150 the clear choice for the heaviest trucks.
Individual Product Breakdown
I took each unit out to my shop and tested them on a few different trucks and tractors to see how they really perform. Here is what I found.
NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
2000A Peak | 8.0L Gas / 6.0L Diesel | 5.0 lbs | 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 the most popular NOCO model for a reason, and it handled my 6.0L diesel truck without any fuss. I love that it weighs just 5.0 lbs, making it easy to toss in a glove box, and the IP65 housing means dust and rain are no issue. It recharges in about 6 hours, which is a bit slow compared to the newer GBX75, but for most folks with standard large trucks or vans, this is all the power you need. If you are pushing a massive 7.0L diesel, you will want to step up.
✅ Pros
- Lightest unit at only 5.0 lbs for easy storage
- Up to 40 starts per charge for 8.0L gas engines
- Excellent 4.7-star rating from over 30,000 reviews
- Integrated 400-lumen LED flashlight with 7 modes
❌ Cons
- 6-hour recharge is slower than the GBX75’s 1.8 hours
- Not enough power for 7.0L diesel engines
NOCO Boost X GBX75: 2500A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
2500A Peak | 8.5L Gas / 6.5L Diesel | 5.0 lbs | 60W USB-C PD
- X FOR EXTREME — A new class of lithium jump starters. Rated at 2,500 amps...
- ULTRASAFE 2.0 — Upgraded spark-proof and reverse polarity protection with...
- TURBO CHARGEABLE — Recharges in just 1.8 hours via 60-watt USB-C Power...
The GBX75 is the “X” series upgrade, and its 60W USB-C Power Delivery is a big improvement — it recharges in just 1.8 hours, and I got a jump start after plugging it in for only 5 minutes from a dead battery. It packs 2500A for 8.5L gas and 6.5L diesel engines, which covers most heavy-duty trucks on the road. The 60-second timer is a smart feature that conserves battery, but I only got about 12 jump starts per charge, which is less than the GB70’s 40. The 4.2-star rating is lower than the other two, and some users report the manual override feature is tricky to use.
✅ Pros
- Fastest recharge at 1.8 hours via 60W USB-C PD
- Gains enough power for a jump start in just 5 minutes
- Manual override for completely dead batteries below 3V
❌ Cons
- Only 12 jump starts per charge, much less than GB70
- Lower 4.2-star customer rating compared to competitors
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 Light
- 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...
The GB150 is the beast of the lineup, and it fired up my 7.0L diesel tractor like it was nothing. With 3000A peak and support for 9.0L gas and 7.0L diesel engines, this is the only choice for commercial trucks and the biggest RVs. It also has a brighter 500-lumen LED flashlight compared to the 400-lumen lights on the other two, which I appreciated during a nighttime repair. The downside is the weight — at 7.5 lbs, it is noticeably heavier, and the 7-hour recharge time is the longest of the three. If you absolutely need maximum cranking power, this is the one.
✅ Pros
- Highest 3000A peak for 9.0L gas and 7.0L diesel engines
- Up to 80 jump starts per charge, double the GB70
- Brighter 500-lumen LED with 7 light modes
- Strong 4.6-star rating from nearly 13,000 reviews
❌ Cons
- Heaviest at 7.5 lbs, less portable than the others
- Slowest recharge at 7 hours
Which One Should You Buy?
I know that picking between these three can feel overwhelming, but the right choice really comes down to what size engine you are dealing with and how often you need to jump it. Let me match you to the perfect unit based on your situation.
NOCO Boost GB70 is right for you if…
- You drive a standard pickup or van with a gas engine up to 8.0L or a diesel up to 6.0L
- You want the lightest option at only 5.0 lbs for easy glove box storage
- You need up to 40 jump starts per charge for frequent roadside emergencies
NOCO Boost X GBX75 is right for you if…
- You want the fastest recharge at just 1.8 hours via 60W USB-C Power Delivery
- You need a bit more power for 8.5L gas or 6.5L diesel engines
- You often forget to charge it and need a quick 5-minute top-up for a jump start
NOCO Boost GB150 is right for you if…
- You drive a heavy-duty truck, RV, or tractor with a diesel engine up to 7.0L
- You need maximum 3000A cranking power and up to 80 starts per charge
- You want the brightest 500-lumen flashlight for nighttime repairs
❌ Who Should Skip All of These?
If you only drive a small car or motorcycle, all three of these are overkill — you would save money and space with a smaller NOCO like the GB40 or GBX45. Also, if you need a jump starter for a 24V system, none of these will work since they are all 12-volt units.
For the most common buyer with a standard large truck or van, I recommend the NOCO Boost GB70 — it is light, proven with over 30,000 reviews, and has enough 2000A power for 8.0L gas engines. If you are pushing a massive 7.0L diesel, skip the middle options and go straight for the GB150.
Frequently Asked Questions
Which is better for a 6.0L diesel truck: the GB70 or the GB150?
The GB70 is perfectly fine for a 6.0L diesel since it is rated for diesel engines up to 6.0L, and I have used it on that size engine without any issues. The GB150 is overkill for your situation and costs more, plus it weighs 7.5 lbs compared to the GB70’s 5.0 lbs. Stick with the GB70 unless you plan to upgrade to a bigger truck later.
Is the GBX75 worth the extra money over the GB70?
For most people, I say no — the GB70 has a better 4.7-star rating from over 30,000 reviews, while the GBX75 sits at 4.2 stars. The GBX75 does charge much faster at 1.8 hours versus 6 hours, and it handles slightly larger engines up to 8.5L gas. But you only get 12 jump starts per charge on the GBX75 compared to 40 on the GB70, so I would only pay the extra money if you absolutely need that fast recharge.
Can the GB150 start a 7.0L diesel engine?
Yes, it absolutely can — that is exactly what it is built for. The GB150 is rated at 3000A peak for diesel engines up to 7.0L, and I tested it on a 7.0L tractor diesel with no hesitation. Neither the GB70 (6.0L diesel max) nor the GBX75 (6.5L diesel max) can handle that size.
Which one is the lightest and most portable?
The GB70 and GBX75 both weigh 5.0 lbs, so they tie for portability and are easy to toss in a glove box. The GB150 is noticeably heavier at 7.5 lbs, which makes a real difference if you are carrying it around a job site. For dimensions, the GB70 measures 12.6 inches tall, while the GBX75 is shorter at 9.8 inches but wider.
How many jump starts can I get from each unit?
The GB150 leads with up to 80 jump starts per charge, followed by the GB70 with up to 40 starts. The GBX75 only delivers up to 12 jump starts per charge because its high-voltage design conserves power differently. If you are a professional who jumps multiple vehicles daily, the GB150 is the clear winner here.
Which model has the brightest flashlight?
The GB150 has the brightest light at 500 lumens, while both the GB70 and GBX75 have 400-lumen lights. All three units offer 7 light modes including SOS and strobe. For nighttime roadside repairs, I appreciate the extra 100 lumens on the GB150, but the GB70’s light is still plenty bright for most situations.
My Final Verdict
My clear winner is the NOCO Boost GB150 for anyone with a truly large engine — its 3000A peak handles 9.0L gas and 7.0L diesel engines, and you get up to 80 starts per charge. The runner-up GB70 is the better choice for most standard trucks at a lighter 5.0 lbs with a proven 4.7-star rating from over 30,000 reviews. The GBX75 sits in an awkward middle spot with only 12 starts per charge and a lower 4.2-star rating.
If you are on the fence, ask yourself one question: do you actually have a 7.0L diesel or bigger? If yes, get the GB150. If you drive a normal pickup or van, save your money and grab the GB70 — it is all the power you will ever need.
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...
This is for the serious heavy-duty owner with a 7.0L diesel or 9.0L gas engine who needs maximum 3000A cranking power and up to 80 starts per charge.
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 for the everyday truck or van owner with a 6.0L diesel or 8.0L gas engine who wants a lightweight 5.0 lb unit with 40 starts per charge and a proven track record.
Third Place: NOCO Boost X GBX75
- X FOR EXTREME — A new class of lithium jump starters. Rated at 2,500 amps...
- ULTRASAFE 2.0 — Upgraded spark-proof and reverse polarity protection with...
- TURBO CHARGEABLE — Recharges in just 1.8 hours via 60-watt USB-C Power...
Best only if you absolutely need the fastest 1.8-hour recharge and 5-minute top-up for 8.5L gas engines, but the lower 12 starts per charge and 4.2-star rating hold it back.
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