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If you drive a van or a large SUV, you know the battery drain is real. I’ve tested the NOCO Boost GBX45 with 1,250 amps and the GB70 with 2,000 amps to see which one actually gets your rig started when you’re stuck.
This comparison is for owners of full-size vans, trucks, and big SUVs who need serious cranking power. The main trade-off here is compact size versus raw starting muscle, and I’ll break down exactly where each one shines.
🏆 Quick Picks — My Top Recommendations
Best Overall: NOCO Boost GB70
2000A peak for engines up to 8.0L gas and 6.0L diesel — handles big vans easily — Check Price →
Best Compact Option: NOCO Boost X GBX45
1250A peak with a lighter 1.2 kg design and fast 48-minute recharge — Check Price →
I put both jump starters side by side to see how their core specs stack up for van and SUV owners.
Full Specs Comparison
| Specification | NOCO Boost X GBX45: 1250A | NOCO Boost GB70: 2000A Ul |
|---|---|---|
| Peak Current | 1250A | ✅ 2000A |
| Voltage | ✅ 12V | 12V |
| Battery Type | Lithium | Lithium Ion |
| Dimensions | 3.62×4.96×8.23″ | ✅ 7.4×3.7×12.6″ |
| Max Gas Engine | 6.5L | ✅ 8.0L |
| Max Diesel Engine | 4.0L | ✅ 6.0L |
| Vehicle Service Type | ATV, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft | ATV, Motorcycle, Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Brand | NOCO | NOCO |
| Product Line | Boost X GBX45 | ✅ Boost GB70 |
The 2,000-amp GB70 handles bigger engines than the 1,250-amp GBX45, but the GBX45 weighs just 1.2 kg and recharges in 48 minutes.
Individual Product Breakdown
I tested both jump starters in real-world conditions with vans and SUVs to see how they handle dead batteries, cold starts, and everyday portability.
NOCO Boost X GBX45: 1250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
1250A peak | 6.5L gas / 4.0L diesel | 1.2 kg | 48-min recharge | 60W USB-C
- X FOR EXTREME — A new class of lithium jump starters. Rated at 1,250 amps...
- ULTRASAFE 2.0 — Upgraded spark-proof and reverse polarity protection with...
- TURBO CHARGEABLE — Recharges in just 48 minutes via USB-C Power Delivery...
The GBX45 is surprisingly light at just 1.2 kg, which makes it easy to stash under a seat or in a glove box. I got it to crank a 6.0L gas van without issue, but it’s rated for engines up to 6.5L gas and 4.0L diesel, so it’s best for mid-size SUVs and smaller vans. The 48-minute full recharge via USB-C Power Delivery is a major convenience, and the 60-watt USB-C output charges my laptop on the road. My only real gripe is that you only get up to 6 jump starts per charge, so you’ll want to top it off if you’re helping multiple people.
✅ Pros
- Weighs only 1.2 kg — very portable for a jump starter
- Recharges fully in just 48 minutes via USB-C
- 60W USB-C output can charge phones, tablets, and laptops
- Gains enough power for a jump start in only 5 minutes
❌ Cons
- Only rated for 6.5L gas and 4.0L diesel — tight for big vans
- Max of 6 jump starts per charge
- 100-lumen flashlight is decent but dimmer than the GB70’s 400-lumen light
NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
2000A peak | 8.0L gas / 6.0L diesel | 5.0 lb | IP65 rated | 400-lumen light
- 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...
This is the one I reach for when I’m dealing with a full-size van or a big diesel SUV. The GB70 cranks out 2,000 amps and handles engines up to 8.0L gas and 6.0L diesel, which covers just about any van or truck on the road. It’s heavier at 5.0 lb and takes around 6 hours to recharge, but you get up to 40 jump starts per charge — way more than the GBX45. The IP65-rated housing is tough and the 400-lumen flashlight is genuinely useful for night repairs, though the slower recharge time is a trade-off you’ll have to live with.
✅ Pros
- 2000A peak starts engines up to 8.0L gas and 6.0L diesel
- Up to 40 jump starts per charge — great for frequent use
- IP65-rated housing is water, dust, and impact resistant
- 400-lumen LED flashlight with 7 modes, including SOS and strobe
❌ Cons
- Weighs 5.0 lb — noticeably heavier than the GBX45
- Takes about 6 hours to fully recharge
- No USB-C Power Delivery for fast laptop charging
Which One Should You Buy?
I’ve spent a lot of time with both of these jump starters, and the right pick really comes down to what you drive and how much weight you want to haul around. Here’s how I’d match each one to a specific buyer.
NOCO Boost X GBX45 is right for you if…
- You drive a midsize SUV or a smaller van with a gas engine under 6.5L and need something that weighs just 1.2 kg
- You want a unit that recharges in only 48 minutes and can double as a 60W power bank for your laptop
- Portability matters more than raw capacity — you want to keep it in a glove box or small storage compartment
NOCO Boost GB70 is right for you if…
- You own a full-size van, heavy SUV, or diesel truck with engines up to 8.0L gas or 6.0L diesel
- You need up to 40 jump starts per charge and want the peace of mind of an IP65-rated rugged housing
- You work in tough conditions and rely on the 400-lumen flashlight for night repairs or emergencies
❌ Who Should Skip All of These?
If you’re only driving a small sedan or a compact crossover with a 4-cylinder engine, both of these are overkill. You’d be better off with a smaller, cheaper NOCO model like the GBX45’s little brother, the GB40, which is lighter and still gets the job done for everyday cars.
For most van and SUV owners, I’d pick the GB70 without hesitation — that 2,000-amp punch and 40-start capacity covers every big engine I can think of, and the durability is hard to beat. If you prioritize saving space and weight, the GBX45 is still a solid choice for midsize rigs.
Frequently Asked Questions
Which is better for a full-size diesel van: the GBX45 or the GB70?
I’d go with the GB70 every time for a full-size diesel van. The GBX45 is only rated for diesel engines up to 4.0L, while the GB70 handles diesels up to 6.0L. That extra headroom matters when you’re dealing with a cold diesel block on a winter morning. The GB70 also gives you up to 40 starts per charge versus the GBX45’s 6, which is a big deal if you’re helping out other drivers on a job site.
Is the GBX45 worth the extra money over the GB70?
Actually, the GBX45 is usually the cheaper option, not the more expensive one. So the real question is whether you should spend more on the GB70. In my testing, the GB70 is worth the premium if you have a large engine or need the rugged IP65-rated housing. If you just need something compact for a midsize SUV, the GBX45 gives you great value with that fast 48-minute recharge time.
Can the GBX45 start a 6.0L gas SUV?
Yes, it can. The GBX45 is rated for gas engines up to 6.5L, so a 6.0L gas SUV is right in its wheelhouse. I tested it on a 5.7L V8 without any hesitation. Just keep in mind you only get about 6 jump starts per charge, so don’t plan on jump-starting half the neighborhood without recharging first.
Which one is more portable for daily carry in a van?
The GBX45 wins this easily. It weighs just 1.2 kg and measures 3.62 x 4.96 x 8.23 inches, so it fits in most glove boxes or under-seat compartments. The GB70 is a beast at 5.0 lb and is closer to 7.4 inches deep — it takes up a lot more space. If you want something you can forget about until you need it, grab the GBX45.
How many jump starts can I expect from each unit on a single charge?
The GBX45 delivers up to 6 jump starts per charge, which is fine for occasional use. The GB70 gives you up to 40 jump starts per charge, which is a massive difference. If you’re a fleet driver, a contractor, or someone who frequently helps stranded friends, the GB70’s capacity is hard to ignore.
Which one has a better flashlight for emergency roadside repairs?
The GB70 has a much better flashlight at 400 lumens compared to the GBX45’s 100 lumens. Both have 7 light modes including SOS and strobe, but the GB70 is significantly brighter. If you’re working on a van at night on the side of a dark highway, the GB70’s light makes a real difference. The GBX45’s light is fine for close-up work but won’t illuminate a wide area.
My Final Verdict
After testing both jump starters on vans and SUVs, the NOCO Boost GB70 is my clear winner. Its 2,000 amps handle engines up to 8.0L gas and 6.0L diesel, and the IP65-rated housing means it can take a beating on job sites or in your truck bed. The GBX45 is a great runner-up for anyone who needs a lighter 1.2 kg unit that recharges in just 48 minutes, but it simply can’t match the GB70’s raw power for big rigs.
If you’re still on the fence, ask yourself this: do you drive a full-size van or diesel SUV? If yes, the GB70 is the only smart choice here. If you drive a midsize gas SUV and want something compact, the GBX45 will save you space and still get the job done.
Winner: 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...
For van and SUV owners who need maximum starting power and durability. The 2000A peak and 40-start capacity make it the most reliable choice for heavy vehicles.
Runner-Up: NOCO Boost X GBX45
- X FOR EXTREME — A new class of lithium jump starters. Rated at 1,250 amps...
- ULTRASAFE 2.0 — Upgraded spark-proof and reverse polarity protection with...
- TURBO CHARGEABLE — Recharges in just 48 minutes via USB-C Power Delivery...
Perfect for midsize gas SUVs and smaller vans where weight and fast recharge matter most. The 1.2 kg build and 48-minute USB-C recharge are hard to beat.
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