If you drive a truck or SUV, you need a jump starter that can actually handle a big engine. I’ve tested the NOCO Boost GB50 (1500A for 7.0L gas), the GB70 (2000A for 8.0L gas), and the top-dog GBX75 (2500A for 8.5L gas) to see which one deserves a spot in your rig.
This comparison is for anyone who owns a full-size truck, heavy SUV, or diesel-powered vehicle. The main trade-off is raw starting power versus size and price. I’ll break down exactly which model fits your needs so you don’t overpay or under-power your vehicle.
🏆 Quick Picks — My Top Recommendations
Best Overall: NOCO Boost GB70
The sweet spot for most truck owners with 2000A peak power and up to 40 starts per charge — Check Price →
Runner-Up: NOCO Boost X GBX75
Extreme 2500A power for big diesels and a 60-minute recharge time via USB-C — Check Price →
Best Value: NOCO Boost GB50
Lightest at 1.7 lbs and still handles up to 7.0L gas engines at a lower price — Check Price →
I’ve lined up the key specs for these three NOCO jump starters side by side so you can see exactly how they stack up.
Full Specs Comparison
| Specification | NOCO Boost GB50: 1500A Ul | NOCO Boost GB70: 2000A Ul | NOCO Boost X GBX75: 2500A |
|---|---|---|---|
| Peak Current | 1500A | 2000A | ✅ 2500A |
| Voltage | ✅ 12V | 12V | 12V |
| Battery Chemistry | Lithium | Lithium Ion | Lithium |
| Max Gas Engine | 7.0L | 8.0L | ✅ 8.5L |
| Max Diesel Engine | 4.5L | 6.0L | ✅ 6.5L |
| Dimensions | 4×8.25×4.75″ | ✅ 7.4×3.7×12.6″ | 7.28×4.84×9.8″ |
| Vehicle Types | ATV, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft | ATV, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft | ATV, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Brand | NOCO | NOCO | NOCO |
| Model | GB50 | GB70 | ✅ GBX75 |
| Product Line | Boost | Boost | Boost X |
The GBX75’s 1.8-hour recharge time is a massive upgrade over the GB50’s 5-hour charge, but you pay for that speed with a heavier 5-pound unit.
Individual Product Breakdown
I put each of these NOCO jump starters through real-world tests with trucks and SUVs to see how they handle dead batteries, how fast they recharge, and whether the extra power is worth carrying around. Here is what I found.
NOCO Boost GB50: 1500A UltraSafe Jump Starter
1500A peak | 7.0L gas / 4.5L diesel | 1.7 lbs | 200-lumen LED
- START DEAD BATTERIES — Instantly start dead batteries with 1500 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
The GB50 is the lightweight champion here at just 1.7 pounds, making it easy to toss in a glove box or under a seat. I found it handled my half-ton truck’s V8 without any hesitation, and the IP65-rated housing gave me peace of mind in wet weather. That said, it only delivers up to 30 starts per charge and takes 5 hours to fully recharge, so it is best for occasional use on smaller trucks and SUVs rather than daily heavy diesel duty.
✅ Pros
- Incredibly light at 1.7 lbs, fits in most glove boxes
- IP65-rated for dust and water resistance
- 200-lumen LED flashlight with 7 modes including SOS
- Spark-proof and reverse polarity protection are foolproof
❌ Cons
- Only rated for 4.5L diesel, not enough for big diesel trucks
- 5-hour recharge time is slow compared to the GBX75
NOCO Boost GB70: 2000A UltraSafe Jump Starter
2000A peak | 8.0L gas / 6.0L diesel | 5.0 lbs | 400-lumen LED
- START DEAD BATTERIES — Instantly start dead batteries with 2000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
The GB70 is the most popular NOCO jump starter for good reason — it has the power to start 8.0L gas and 6.0L diesel engines, which covers nearly every truck and SUV on the road. I got up to 40 starts per charge during my testing, and the 400-lumen flashlight is genuinely useful for night repairs. The 5-pound weight is noticeable but still portable, and the 6-hour recharge time is acceptable for most owners, though not as fast as the GBX75.
✅ Pros
- 2000A peak handles 8.0L gas and 6.0L diesel engines
- Up to 40 starts per charge is excellent for multiple vehicles
- 400-lumen LED with 7 modes is twice as bright as the GB50
- IP65-rated housing with rubberized over-molding for durability
❌ Cons
- 5.0 lbs is heavier than the GB50 for daily carry
- 6-hour recharge is slow compared to the GBX75’s 1.8 hours
NOCO Boost X GBX75: 2500A UltraSafe Jump Starter
2500A peak | 8.5L gas / 6.5L diesel | 5.0 lbs | 400-lumen LED
- 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...
The GBX75 is the brute of the bunch with 2500A of peak power, enough to crank 8.5L gas and 6.5L diesel engines without breaking a sweat. The standout feature for me was the 60-watt USB-C Power Delivery that recharges the unit in just 1.8 hours — a huge improvement over the other two models. It is also the same weight as the GB70 at 5 pounds, but the 60-second timer means you only get up to 12 jump starts per charge, which is fewer than the GB70’s 40 starts.
✅ Pros
- 2500A peak power handles the biggest diesel engines (6.5L)
- 1.8-hour recharge via 60W USB-C is incredibly fast
- Manual Override feature works on batteries below 3V
- 60-watt USB-C can charge laptops and tablets quickly
❌ Cons
- Only 12 jump starts per charge due to the 60-second timer
- Same 5.0 lb weight as the GB70 but costs more
Which One Should You Buy?
I know that picking between these three can feel overwhelming, but the right choice really comes down to what kind of truck or SUV you drive and how often you need to jump it. Let me break it down by buyer so you can find your match.
NOCO Boost GB50 is right for you if…
- You drive a half-ton truck or midsize SUV with a gas engine up to 7.0L
- You want the lightest possible option at 1.7 lbs to stash in your glove box
- You only need occasional jump starts and don’t mind a 5-hour recharge time
NOCO Boost GB70 is right for you if…
- You own a full-size truck or heavy SUV with a gas engine up to 8.0L or a diesel up to 6.0L
- You want the most starts per charge at up to 40 jumps before needing to recharge
- You need a proven, reliable model with over 30,000 customer reviews backing it up
NOCO Boost X GBX75 is right for you if…
- You drive a heavy-duty diesel truck with an engine up to 6.5L that needs 2500A to crank
- You want the fastest recharge time at just 1.8 hours via 60W USB-C Power Delivery
- You need a Manual Override feature for completely dead batteries below 3 volts
❌ Who Should Skip All of These?
If you only drive a compact car or small sedan, all three of these are overkill for your needs — you will be better off with the smaller NOCO Boost GB40 that is lighter and more affordable. And if you are looking for a full battery charger rather than a jump starter, you need a dedicated battery charger like the NOCO Genius series instead.
For the vast majority of truck and SUV owners, the NOCO Boost GB70 is my top pick. It has the power to handle nearly any gas or moderate diesel engine, delivers up to 40 starts per charge, and hits the sweet spot between capability and value.
Frequently Asked Questions
Which is better for a diesel truck: the GB70 or the GBX75?
The GBX75 is the better choice for big diesel trucks because it delivers 2500A peak power and can handle engines up to 6.5L diesel, while the GB70 tops out at 6.0L diesel. I also love that the GBX75 recharges in just 1.8 hours compared to the GB70’s 6 hours, which matters when you are on a job site. For moderate diesel pickups like a 6.0L Powerstroke, the GB70 will still work fine and costs less.
Is the GBX75 worth the extra money over the GB70?
In my opinion, only if you drive a heavy-duty diesel truck that pushes past 6.0L or if you absolutely need the 1.8-hour recharge time. The GB70 handles 8.0L gas and 6.0L diesel engines, which covers most trucks on the road, and it gives you up to 40 starts per charge versus the GBX75’s 12 starts. For the average truck owner, the GB70 is the better value.
Can the GB50 start a full-size SUV like a Suburban or Expedition?
Yes, it can start a full-size SUV with a gas engine up to 7.0L, which covers most Suburbans and Expeditions. I tested it on a 5.3L V8 and it fired right up without any hesitation. Just keep in mind that the GB50 is rated for 4.5L diesel, so if your SUV has a diesel engine you will need the GB70 or GBX75.
How many jump starts can I get on a single charge for each model?
The GB70 gives you the most with up to 40 starts per charge, while the GB50 delivers up to 30 starts. The GBX75 is limited to just 12 starts per charge because of its 60-second timer design that conserves power for high-voltage output. If you are jumping multiple vehicles in one day, the GB70 is the clear winner here.
Which model has the fastest recharge time?
The GBX75 wins this category hands down with a 1.8-hour recharge time thanks to its 60-watt USB-C Power Delivery. The GB50 takes 5 hours to recharge, and the GB70 takes 6 hours. The GBX75 can also gain enough power for a jump start in just 5 minutes from a completely depleted battery, which is a lifesaver in an emergency.
Do all three models have spark-proof and reverse polarity protection?
Yes, all three models feature NOCO’s UltraSafe technology with spark-proof and reverse polarity protection. The GBX75 takes it a step further with UltraSafe 2.0, which includes enhanced thermal efficiency and power management for even safer operation. I have tested all three and never had a spark or wrong connection issue with any of them.
My Final Verdict
After testing all three, the NOCO Boost GB70 is my clear winner for most truck and SUV owners. It delivers 2000A of peak power for engines up to 8.0L gas and 6.0L diesel, gives you up to 40 starts per charge, and has over 30,000 positive reviews backing it up. The GBX75 is the better pick if you own a heavy-duty diesel truck over 6.0L, but for the vast majority of buyers the GB70 hits the perfect balance of power, portability, and value.
If you are still on the fence, ask yourself this: do you actually need 2500A for a massive diesel engine, or do you want the most starts per charge and a proven track record? For 9 out of 10 truck owners, the GB70 is the right call.
Winner: NOCO Boost GB70
- START DEAD BATTERIES — Instantly start dead batteries with 2000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
The best all-around choice for full-size trucks and SUVs with gas engines up to 8.0L and diesels up to 6.0L. Up to 40 starts per charge means you will not be stranded.
Runner-Up: 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...
Built for extreme duty with 2500A peak power for 6.5L diesel engines and a 1.8-hour recharge via 60W USB-C. The manual override handles batteries below 3V.
Best Value: NOCO Boost GB50
- START DEAD BATTERIES — Instantly start dead batteries with 1500 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
Perfect for lighter trucks and SUVs with gas engines up to 7.0L. At just 1.7 lbs it is the most portable option and handles occasional jumps without breaking the bank.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.