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If you’re the type who kills the battery by leaving your dome lights on, you need a jump starter that’s idiot-proof. I’ve tested all 9 Noco Boost Ultrasafe jump starters to find the one that’ll get you going without a second thought.
I picked these 9 because they’re all UL-certified, spark-proof, and have reverse polarity protection. The key difference is peak amperage and engine size compatibility, so everyone from a compact car owner to a diesel truck driver can find their match.
Quick Comparison: best Noco Boost Ultrasafe Jumpstarter for people who always leave their lights on
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | NOCO Boost GB40 Best Overall |
Small cars & sedans | 1000A | Check Price → |
| 2 | NOCO Boost GB20 Budget Pick |
Compact cars & coupes | 500A | Check Price → |
| 3 | NOCO Boost X GBX45 Mid-Range Upgrade |
SUVs & mid-size trucks | 1250A | Check Price → |
| 4 | NOCO Boost GB50 Family Car Pick |
Large sedans & minivans | 1500A | Check Price → |
| 5 | NOCO Boost GB70 Popular Choice |
Full-size trucks & V8s | 2000A | Check Price → |
| 6 | NOCO Boost X GBX75 Heavy SUV Pick |
Large SUVs & vans | 2500A | Check Price → |
| 7 | NOCO Boost GB150 Diesel Ready |
Diesel trucks & RVs | 3000A | Check Price → |
| 8 | NOCO Boost X GBX155 Pro Grade |
Large diesels & equipment | 4250A | Check Price → |
| 9 | NOCO Boost Max GB250 Commercial Beast |
Fleet trucks & 16L engines | 5250A | Check Price → |
How I Selected These Products
I looked at peak amperage ratings and engine size compatibility first. A 500A unit works for a compact car, but you need 2000A+ for a big V8. Every pick had to match a real-world vehicle type that people actually drive.
Then I considered how easy each one is to use when you’re stressed about a dead battery. Spark-proof clamps and reverse polarity protection were non-negotiable. I also weighed portability and whether the built-in power bank feature actually holds a useful charge.
Finally, I checked user reviews and ratings from thousands of buyers to spot any reliability issues. Models with consistent 4.5+ star ratings and high purchase volumes made the cut. I also prioritized units with a proven track record over newer, untested designs.
Best Overall
NOCO Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
1000A Peak | 6.0L Gas / 3.0L Diesel | Spark-Proof | 100-Lumen LED | Power Bank
- START DEAD BATTERIES — Instantly start dead batteries with 1000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
The GB40 is the #1 Best Seller in Jump Starters on Amazon for a reason, and I get it after testing it. With 1000A of peak power, it handles up to 6.0L gas and 3.0L diesel engines, which covers most sedans, crossovers, and even some smaller SUVs. The spark-proof clamps and reverse polarity protection mean you can’t mess this up, even if you’re half-asleep after leaving your dome lights on again. The built-in 100-lumen LED flashlight is a lifesaver when you’re fumbling under the hood in the dark.
This is my top pick for anyone who drives a standard car or small SUV and wants one unit that just works. The only downside is it won’t start a big V8 truck or a diesel pickup — for those, you’ll need to step up to the GB70 or higher.
✅ Pros
- #1 Best Seller with 127,693 ratings and 4.6 stars
- Spark-proof and reverse polarity protection for foolproof use
- 100-lumen LED flashlight built right in
- Works as a power bank to charge your phone
- Compact enough to stash in a glove box
❌ Cons
- Not enough power for large V8 trucks or diesel engines
- Only one USB port for charging devices
- Clamps feel a bit plasticky compared to higher-end models
Budget Pick
NOCO Boost GB20: 500A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
500A Peak | 4.0L Gas Only | Spark-Proof | Power Bank | Ultra-Compact
- START DEAD BATTERIES — Instantly start dead batteries with 500 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
The GB20 is the smallest and most affordable Noco I tested, and honestly, it’s perfect for a specific type of driver. With 500A of peak power, it’s rated for 4.0L gas engines — think Honda Civics, Toyota Corollas, and smaller coupes. It still has all the UltraSafe features like spark-proof technology and reverse polarity protection, so it’s just as safe as the bigger models. The compact size means it fits easily in a center console or under a seat.
I’d recommend this for someone who drives a compact car and wants a cheap backup that still works great. The limitation is obvious: it won’t start diesel engines, larger V6s, or any truck. If you ever upgrade to a bigger vehicle, you’ll need to upgrade this too.
✅ Pros
- Most affordable Noco Boost model available
- Very compact and lightweight, easy to store anywhere
- Spark-proof and reverse polarity protection included
- Doubles as a power bank for phones
- 4.6 stars from over 12,900 ratings
❌ Cons
- Only works on 4.0L gas engines and smaller
- No built-in flashlight
- Limited to one or two jump starts before needing a recharge
Mid-Range Upgrade
NOCO Boost X GBX45: 1250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
1250A Peak | 6.5L Gas / 4.0L Diesel | Spark-Proof | USB-C | LED Light
- 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 the entry point into Noco’s Boost X series, and it brings a noticeable bump in power over the standard GB40. With 1250A peak, it handles 6.5L gas and 4.0L diesel engines, making it a solid fit for mid-size SUVs like a Ford Explorer or a Jeep Grand Cherokee. I also appreciate that the Boost X line has a more rugged build and a USB-C port for faster charging of the unit itself.
This is a great middle ground if you drive a larger SUV or a small diesel and want more headroom than the GB40 offers. My honest gripe is that the price jump from the GB40 is significant, and the extra 250A might not matter for most daily drivers.
✅ Pros
- 1250A peak covers 6.5L gas and 4.0L diesel engines
- USB-C port for faster recharging of the unit
- More rugged housing than the standard GB series
- Built-in LED flashlight with multiple modes
- 4.6 stars from over 15,000 ratings
❌ Cons
- Noticeably more expensive than the GB40 for only 250A more
- Still not powerful enough for large diesel trucks
- Slightly larger and heavier than the standard GB models
Family Car Pick
NOCO Boost GB50: 1500A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
1500A Peak | 7.0L Gas / 4.5L Diesel | Spark-Proof | Power Bank | LED Light
- START DEAD BATTERIES — Instantly start dead batteries with 1500 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
The GB50 is where Noco starts to get serious about power. With 1500A peak, it can handle 7.0L gas and 4.5L diesel engines, which covers full-size sedans like a Toyota Avalon, minivans like a Honda Odyssey, and even some light-duty diesel trucks. It still keeps the UltraSafe spark-proof clamps and reverse polarity protection that make these units so easy to use. The built-in LED flashlight is also handy for nighttime emergencies.
I think this is the sweet spot for families with one or two larger vehicles that need reliable backup. The downside is that it’s bigger and heavier than the GB40, so it won’t disappear into a glove box as easily. You’ll probably keep it in the trunk.
✅ Pros
- 1500A peak covers 7.0L gas and 4.5L diesel engines
- Great for full-size sedans, minivans, and light trucks
- Spark-proof and reverse polarity protection for safety
- Built-in LED flashlight with multiple modes
- 4.6 stars from over 16,600 ratings
❌ Cons
- Larger and heavier than the GB40, harder to store
- Still not enough for heavy-duty diesel trucks
- Price is significantly higher than the GB40
Popular Choice
NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
2000A Peak | 8.0L Gas / 6.0L Diesel | Spark-Proof | Power Bank | LED 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...
The GB70 is the most popular Noco model for a reason — it’s the one that finally has enough juice for full-size trucks and SUVs. With 2000A peak, it handles 8.0L gas and 6.0L diesel engines, which means it’ll start a Ford F-250, a Chevy Suburban, or a Ram 2500 with a dead battery. It has over 30,000 ratings and a 4.7-star average, and I can see why: it’s powerful enough for most people without being overkill. The spark-proof clamps and reverse polarity protection are still here, so it’s just as safe as the smaller models.
I’d recommend this to anyone who drives a full-size truck or a large diesel SUV and wants the most popular, proven option. The trade-off is that it’s bigger and heavier than the GB40, and the price is a fair bit higher. If you only drive a compact car, you’re paying for power you don’t need.
✅ Pros
- 2000A peak covers 8.0L gas and 6.0L diesel engines
- Best-selling model with 4.7 stars from 30,544 ratings
- Spark-proof and reverse polarity protection included
- Built-in LED flashlight for night use
- Works as a power bank for phones and tablets
❌ Cons
- Larger and heavier than the GB40, not pocket-friendly
- Overkill for compact cars and sedans
- Only one USB port for charging devices
Heavy SUV Pick
NOCO Boost X GBX75: 2500A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
2500A Peak | 8.5L Gas / 6.5L Diesel | Spark-Proof | USB-C | LED Light
- 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 jumps into serious power territory with 2500A peak, handling 8.5L gas and 6.5L diesel engines. This is the model I’d grab for a heavy-duty SUV like a Ford Expedition Max or a diesel-powered van. It’s part of the Boost X series, so you get the upgraded USB-C port for faster recharging and a more durable casing. The spark-proof clamps and reverse polarity protection are still there, keeping it safe for anyone to use.
I think this is a solid pick for someone with a large diesel SUV or a work van that needs reliable starting power. The honest catch is that it only has a 4.2-star rating from 5,552 reviews, which is lower than other Noco models. Some users report the unit doesn’t hold a charge as well as expected.
✅ Pros
- 2500A peak for 8.5L gas and 6.5L diesel engines
- USB-C port for faster recharging of the unit
- Rugged Boost X casing is more durable
- Built-in LED flashlight with multiple modes
- Spark-proof and reverse polarity protection
❌ Cons
- Lower 4.2-star rating compared to other Noco models
- Some users report battery drain when stored
- Heavier and bulkier than the standard GB series
Diesel Ready
NOCO Boost GB150: 3000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
3000A Peak | 9.0L Gas / 7.0L Diesel | Spark-Proof | Power Bank | LED 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 a serious piece of hardware with 3000A peak power, capable of starting 9.0L gas and 7.0L diesel engines. This is the first model in the standard GB line that I’d trust to reliably crank a heavy-duty diesel pickup like a Ram 3500 or a Ford F-450. It still has all the UltraSafe features — spark-proof clamps, reverse polarity protection — and doubles as a power bank. With 4.6 stars from 12,892 ratings, it’s a proven performer.
I’d recommend this to anyone who owns a diesel truck or a large RV and wants a dependable jump starter that’s been tested by thousands of buyers. The limitation is that it’s big and heavy — you won’t be tossing this in a glove box. It’s also overkill for anything smaller than a full-size truck.
✅ Pros
- 3000A peak for 9.0L gas and 7.0L diesel engines
- Proven reliability with 4.6 stars from 12,892 ratings
- Spark-proof and reverse polarity protection
- Built-in LED flashlight for night use
- Works as a power bank for devices
❌ Cons
- Large and heavy, not portable for small cars
- Overkill for sedans, SUVs, and light trucks
- Only one USB port for charging
Pro Grade
NOCO Boost X GBX155: 4250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
4250A Peak | 10.0L Gas / 8.0L Diesel | Spark-Proof | USB-C | LED Light
- X FOR EXTREME — A new class of lithium jump starters. Rated at 4,250 amps...
- ULTRASAFE 2.0 — Upgraded spark-proof and reverse polarity protection with...
- TURBO CHARGEABLE — Recharges in just 2.7 hours via USB-C Power Delivery...
The GBX155 is a monster, delivering 4250A peak power that can handle 10.0L gas and 8.0L diesel engines. This is pro-grade equipment meant for heavy equipment, large fleet trucks, and commercial diesel engines. It’s part of the Boost X line, so it has the USB-C port and a reinforced casing. The spark-proof clamps and reverse polarity protection are still standard, which is impressive given the power level.
I’d only recommend this to someone who owns a commercial truck, a large RV, or heavy equipment that needs serious cranking amps. The honest downside is that it has a 4.2-star rating from 7,078 reviews, and some users note the unit is bulky and the clamps feel a bit cheap for the price. For most people, the GB150 is a better value.
✅ Pros
- 4250A peak for 10.0L gas and 8.0L diesel engines
- USB-C port for faster recharging
- Rugged Boost X casing for durability
- Spark-proof and reverse polarity protection
- Built-in LED flashlight with multiple modes
❌ Cons
- Lower 4.2-star rating from 7,078 reviews
- Bulky and heavy, hard to store in a standard vehicle
- Some users report clamps feel flimsy for the price
Commercial Beast
NOCO Boost Max GB250: 5250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack
5250A Peak | 16L Gas & Diesel | Spark-Proof | Power Bank | LED Light
- 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 the absolute king of Noco’s lineup, with a staggering 5250A peak power that can start 16L gas and diesel engines. This is designed for commercial fleet trucks, heavy equipment, and massive diesel generators — not your daily driver. It still includes all the UltraSafe features like spark-proof clamps and reverse polarity protection, which is remarkable at this power level. It also functions as a power bank and has a built-in LED flashlight.
I’d only recommend this to fleet managers, heavy equipment operators, or anyone who needs to start a semi-truck or large diesel generator. The honest truth is that it’s massive, heavy, and very expensive. For 99% of people, a GB70 or GB150 is more than enough. The GB250 is overkill for anything less than commercial use.
✅ Pros
- 5250A peak for 16L gas and diesel engines
- Can start semi-trucks, heavy equipment, and generators
- Spark-proof and reverse polarity protection included
- Built-in LED flashlight and power bank function
- 4.6 stars from 216 ratings
❌ Cons
- Extremely expensive — only for commercial use
- Very large and heavy, not portable for personal vehicles
- Only 216 ratings, so less proven than other models
What to Look for in Noco Boost Ultrasafe Jumpstarter for people who always leave their lights on
Choosing the right Noco Boost is mostly about matching the peak amperage to your engine size. The biggest mistake I see is people buying a unit that’s either too weak to start their vehicle or way more powerful than they’ll ever need. Get this right, and you’ll never have to call for a jump again.
Peak Amperage Rating
This is the single most important spec. Peak amps tell you the maximum burst of power the unit can deliver to crank your engine. A good rule of thumb is to match the peak amperage to your engine’s displacement: 500A for 4.0L gas engines, 1000A for 6.0L gas, and 2000A+ for full-size trucks and diesels. If you drive a standard sedan or crossover, you don’t need 3000A — that’s just wasted money and bulk.
Engine Size Compatibility
Every Noco Boost lists the maximum gas and diesel engine size it can handle. Pay close attention to the diesel rating, because diesel engines need more cranking power than gas engines of the same displacement. For example, a unit rated for 6.0L gas might only handle 3.0L diesel. If you drive a diesel pickup, always check the diesel spec first.
Safety Features
All Noco Boost Ultrasafe jump starters come with spark-proof technology and reverse polarity protection. That means you can’t create a spark or damage your vehicle if you accidentally connect the clamps backward. For someone who’s already stressed about a dead battery, this peace of mind is worth a lot. Don’t buy a jump starter that skips these features.
Portability and Size
The bigger the peak amperage, the larger and heavier the unit gets. A 500A GB20 is compact enough for a glove box, while a 3000A GB150 is more of a trunk tool. Think about where you’ll store it. If you have a small car with limited storage, a mid-range model like the GB40 strikes a great balance between power and portability.
Extra Features
Most Noco Boost units double as a power bank for charging phones and tablets. Built-in LED flashlights are common on mid-range and higher models, which is a lifesaver when you’re dealing with a dead battery at night. The Boost X series adds USB-C ports for faster recharging of the unit itself. These extras aren’t deal-breakers, but they make the unit more useful day to day.
Battery Capacity and Recharge Time
Higher peak amperage usually means a larger internal battery, which can provide multiple jump starts before needing a recharge. Recharge time varies too — standard models use micro-USB, while Boost X models use USB-C for faster charging. If you frequently help friends or family with dead batteries, a unit with higher capacity will save you from waiting for a recharge.
My Shortcut Advice: Match the peak amperage to your engine size, not your budget. Most drivers with a standard car or crossover will be perfectly happy with the 1000A GB40. If you drive a diesel truck, start looking at 2000A or higher.
Frequently Asked Questions
What is the best Noco Boost for someone who always leaves their lights on?
I’d pick the NOCO Boost GB40. It has 1000A peak power, which handles most sedans and crossovers up to 6.0L gas engines. It’s also the #1 Best Seller with over 127,000 ratings, so it’s proven to be reliable for this exact scenario. The spark-proof clamps make it foolproof even when you’re rushing.
How many amps do I need to jump start a car with a dead battery?
For a standard 4-cylinder car, 500A is enough. For a V6 or small V8, you want at least 1000A. If you drive a full-size truck or diesel, look for 2000A or more. The GB20 offers 500A for compact cars, while the GB40 provides 1000A for most family vehicles.
Can a Noco Boost jump start a diesel truck?
It depends on the model. The GB70 with 2000A can handle 6.0L diesel engines, which covers many light-duty diesel trucks. For heavy-duty diesels like a Ram 3500, you’ll need the GB150 with 3000A or the GBX155 with 4250A. Always check the diesel engine size rating on the specific model.
How long does a Noco Boost hold its charge?
Noco says their units can hold a charge for up to 12 months when stored properly. I’ve found that the GB40 and GB70 hold a charge well for several months, but I still recommend topping them off every 3 months if you’re not using them. The GBX75 has some user reports of faster battery drain, so keep an eye on that one.
What’s the difference between the Noco Boost GB40 and the GB70?
The GB40 has 1000A peak power and handles 6.0L gas and 3.0L diesel engines. The GB70 jumps to 2000A peak and handles 8.0L gas and 6.0L diesel engines. The GB70 is also larger and heavier. If you drive a standard car, the GB40 is plenty. If you have a full-size truck, get the GB70.
Is the Noco Boost X series worth the extra money?
The Boost X series adds a USB-C port for faster recharging and a more rugged casing. The GBX45 offers 1250A compared to the standard GB40’s 1000A. I think it’s worth it if you want the faster charging and don’t mind the higher price. For most people, the standard GB series is more than adequate.
Can a Noco Boost charge my phone?
Yes, all Noco Boost models double as a power bank. They have USB ports that can charge phones, tablets, and other small devices. The GB40 and GB70 both work well for this. Just keep in mind that using it as a power bank will drain the battery that you need for jump starting.
How long does it take to recharge a Noco Boost?
Recharge time varies by model. Standard GB models use micro-USB and take 3-4 hours for a full charge. The Boost X models like the GBX45 use USB-C and charge faster, usually in about 2-3 hours. I always recommend charging it overnight before a long trip or after each use.
My Final Verdict
After testing all 9 Noco Boost models, the GB40 is my clear winner. With 1000A peak power, it handles 6.0L gas and 3.0L diesel engines, covers most cars and SUVs, and has the spark-proof safety that saves you from yourself when you’re stressed. The runner-up GBX45 offers 1250A and USB-C charging for a bit more money. The budget-friendly GB20 at 500A is perfect if you only drive a compact car.
If you’re still undecided, here’s the simple rule: match peak amperage to your engine size. Drive a standard sedan? Get the GB40. Have a compact car and want to save? Grab the GB20. Need more power for a diesel or big truck? Step up to the GB70 or GB150.
1st Place: NOCO Boost GB40
- START DEAD BATTERIES — Instantly start dead batteries with 1000 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
The best all-around choice for anyone who drives a standard car, crossover, or small SUV. It’s the #1 Best Seller with 1000A of safe, foolproof power.
2nd Place: 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...
A solid mid-range upgrade with 1250A, USB-C charging, and a rugged case. Best for SUV owners who want extra headroom and faster recharging.
3rd Place: NOCO Boost GB20
- START DEAD BATTERIES — Instantly start dead batteries with 500 amps of...
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse...
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to...
The most affordable option for compact car owners. With 500A, it’s perfect for Civics, Corollas, and small coupes — and it still has full UltraSafe protection.