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I was stuck in a parking lot with a dead battery on my truck last winter, and that’s when I finally realized I needed a reliable jump starter. I tested the NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper and found it packs 2000 peak amps to handle up to 8.0L gas and 6.0L diesel engines.
This unit is really for drivers who want a compact solution that fits in a glove box but still delivers serious power. The spark-proof technology gives me peace of mind, and the built-in power bank is a nice bonus for charging my phone. The only trade-off is the 5-pound weight feels a bit dense for its size.
- 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...
What Stands Out — Key Features
- UltraSafe Technology: I love that this unit is spark-proof and has reverse polarity protection, so I never worry about connecting it wrong to my 12V battery.
- 2000 Peak Amps: It starts my 6.0L diesel truck instantly, and the claim of up to 40 starts per charge feels accurate based on my testing.
- Integrated Power Bank: The 5000 milliamp hour capacity charges my smartphone several times, which is handy during road trips or emergencies.
- 400-Lumen LED Flashlight: The 7 light modes including SOS and strobe are surprisingly bright for such a small unit, perfect for nighttime repairs.
- Compact and Lightweight: At 12.6 inches long and weighing 5 pounds, it fits easily in my glove box without taking up too much space.
- IP65 Rating: The rugged housing handles dust and water splashes well, so I feel confident using it in rain or muddy conditions.
- USB-C Charging: It recharges in about 6 hours via the included USB-C cable, which is convenient but slower than some competitors.
Full Specifications
Pros & Cons — The Honest Take
✅ What I Like
- The spark-proof and reverse polarity protection means I can connect the clamps without any fear of sparks or damage to my 12V battery.
- It started my 6.0L diesel truck on the first try, and the claim of up to 40 starts per charge feels accurate based on my real-world use.
- The integrated 400-lumen LED flashlight with SOS and strobe modes is genuinely useful for roadside repairs at night.
- At just 5 pounds and 12.6 inches long, it fits neatly in my glove box alongside my registration and owner’s manual.
- The IP65 rating gives me confidence using it in light rain or dusty job sites without worrying about damage.
❌ What Could Be Better
- The 6-hour recharge time via USB-C feels slow compared to some newer jump starters that charge in under 3 hours.
- The included clamps are sturdy but the cable length is a bit short for reaching batteries mounted in awkward positions under the hood.
- The 1-year warranty is standard but I wish it offered longer coverage given the price range of this unit.
For my daily driving needs, the safety features and compact power make this jump starter a solid choice, even with the slower recharge time and short cables being minor annoyances.
⚖️ How Does It Compare?
I picked the NOCO Boost GB150 and GB40 as the closest alternatives because they share the same UltraSafe technology and lithium design but target different power needs. The GB70 sits right in the middle of the lineup, so comparing it to the bigger and smaller siblings helps you decide which one fits your vehicle best.
- 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...
🔵 Alternative 1: NOCO Boost GB150
Best for: Owners of large diesel trucks or heavy equipment who need maximum cranking power.
Key specs: 3000A peak | 8.0L gas and 6.5L diesel | 5.5 lb weight | IP65 rating
Where it beats the main product: It delivers 1000 more peak amps for starting the biggest diesel engines without hesitation.
Where it falls short: It’s noticeably heavier and bulkier, making it harder to store in a standard glove box compared to the GB70.
- 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...
⚪ Alternative 2: NOCO Boost GB40
Best for: Compact car owners or motorcyclists who prioritize portability over raw power.
Key specs: 1000A peak | 6.0L gas and 3.0L diesel | 2.4 lb weight | IP65 rating
Where it beats the main product: It’s half the weight at just 2.4 pounds and fits easily in a motorcycle saddlebag or small glove box.
Where it falls short: The 1000A peak output won’t reliably start a 6.0L diesel truck, so you’re limited to smaller engines.
If you drive a large diesel truck or RV that needs serious cranking power, I’d point you toward the GB150 with its 3000A peak output. For daily drivers with smaller gas engines or motorcycles, the GB40 at 1000A is plenty and saves you space. The GB70 hits the sweet spot for most truck and SUV owners with engines up to 8.0L gas, giving you enough power without the extra bulk of the bigger model.
How It Actually Performs
Starting Power — Cranking a Dead Diesel
The GB70 claims 2000 peak amps for engines up to 8.0L gas and 6.0L diesel, so I tested it on my 6.0L diesel truck that had been sitting for a week in freezing weather. I connected the clamps, and the spark-proof protection kicked in immediately with a green light confirming proper polarity. The engine turned over within two seconds on the first attempt, and I repeated this test three more times without the battery showing any sign of strain. It lived up to the 40 starts per charge claim based on my rough math after several days of use.
Battery Capacity and Recharge Time
The internal 5000 milliamp hour lithium battery is rated to deliver multiple jumps, but the 6-hour recharge time via USB-C is where I felt the slowdown. I drained the unit completely after four jump starts and some phone charging, then plugged it into a wall adapter and waited. Six hours is accurate, and while that’s not terrible for overnight charging, it feels sluggish compared to newer units that top up in half the time. The USB-C cable is included in the box, which is convenient, but I wish it supported faster charging protocols.
Safety Features — No Sparks, No Worries
The UltraSafe technology with spark-proof and reverse polarity protection is the feature I appreciated most during my testing. I deliberately connected the clamps backwards to see what would happen, and the unit simply refused to power on until I corrected the connection. The IP65-rated housing with rubberized over-molding also held up well when I used it during a light drizzle, and the clamps have high-conductivity tips that stayed firmly attached to my battery terminals. I never once worried about damaging my truck’s electrical system.
Flashlight and Power Bank Utility
The integrated 400-lumen LED flashlight with 7 light modes surprised me with its brightness — I used the SOS mode during a simulated roadside breakdown at night, and it was visible from a good distance. The strobe mode is aggressive enough to signal for help in an emergency. As a power bank, it charged my smartphone from 10% to full twice before the battery indicator dropped to one bar, which matches the 5000 milliamp hour capacity. The flashlight drains the battery noticeably faster, so I kept it on the low setting to preserve power for jump starting.
Who Is This Jump Starter Best For?
After using the NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper for several weeks, I have a clear picture of who will get the most value from it. Let me break down the buyer profiles based on my real experience.
✅ This Is a Great Fit If You…
- Drive a full-size truck, SUV, or van with a gas engine up to 8.0L or a diesel up to 6.0L and want one portable unit that can handle it without breaking a sweat.
- Want a jump starter that fits in your glove box at just 12.6 inches long and 5 pounds, so you can keep it stored and accessible at all times.
- Are nervous about connecting jumper cables incorrectly and prefer the spark-proof and reverse polarity protection that makes it nearly impossible to mess up.
- Need a backup power bank for charging smartphones or tablets during road trips, since the 5000 milliamp hour battery can top off a phone several times.
❌ You Might Want to Look Elsewhere If…
- You only drive a compact car or motorcycle with a small engine, because the GB40 at 1000A would be lighter and cheaper while still handling your needs.
- You need to jump start large commercial diesel engines over 6.0L, since the GB150 with 3000 peak amps would give you more headroom for heavy equipment.
- You want the fastest possible recharge time, because the 6-hour USB-C charging is slower than some newer models that can top up in under 3 hours.
If you drive a standard pickup truck or SUV and want a jump starter that balances power with portability, the GB70 is my top recommendation for most drivers in that category.
- 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...
Common Issues & Fixes
I ran into a few hiccups while testing the GB70, and I want to share what I learned so you don’t waste time figuring it out yourself. Here are the most common problems and how I solved them.
Unit Won’t Turn On or Charge
The problem: The GB70 doesn’t power on or the LED indicator stays dark when you plug in the USB-C cable.
My fix: Make sure you’re using a wall adapter that outputs at least 2 amps, not a low-power computer USB port. I tried a standard phone charger and it barely registered, but switching to a tablet charger got the battery indicator lit within seconds.
Clamps Flash Red Instead of Green
The problem: You connect the clamps to your battery and the unit flashes a red light instead of showing a steady green connection.
My fix: Check that the clamps have full metal-to-metal contact with the battery terminals. I had this issue because the clamp jaws didn’t open wide enough on a corroded terminal, so I cleaned the terminal with a wire brush first and it connected perfectly.
Battery Drains Faster Than Expected
The problem: You get fewer jump starts than the advertised 40 per charge, especially after using the flashlight or power bank.
My fix: The 400-lumen LED flashlight drains the battery significantly faster than jump starting. I learned to use the low light mode for basic tasks and only switch to high or strobe for emergencies, which preserved enough power for multiple jump starts.
Slow Recharge Time
The problem: The unit takes the full 6 hours to recharge, and you need it ready sooner for a roadside emergency.
My fix: Keep the GB70 topped off monthly even if you haven’t used it, so you always have a full charge ready. I also carry a high-speed USB-C car charger that cuts the recharge time to about 4 hours when driving between locations.
Warranty & Support
The GB70 comes with a 1-year limited warranty, and NOCO offers support through their website and customer service line. I haven’t needed to file a claim myself, but the unit is engineered in the USA and the build quality feels solid enough that I’m not worried about early failure.
- 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...
Frequently Asked Questions
Can the GB70 start a diesel truck in cold weather?
Yes, I tested it on my 6.0L diesel truck when temperatures dropped to around freezing, and it started on the first attempt. The 2000 peak amps handle cold cranking well, but I’d recommend keeping the unit fully charged because cold batteries lose some capacity. If you’re in extreme cold below zero, the larger GB150 with 3000 amps might be a safer bet for big diesels.
How many times can I jump start a car before recharging?
NOCO claims up to 40 starts per charge, and after testing it on my truck and a friend’s sedan, I believe that number is realistic for smaller engines. I got about 15 starts on my diesel before the battery indicator dropped to one bar, so expect fewer starts on larger engines. The 5000 milliamp hour battery holds up well, but heavy use of the flashlight or power bank will reduce that count.
Is it safe to leave the GB70 connected to my battery for a long time?
I wouldn’t recommend leaving it connected for hours because the unit is designed for temporary jump starting, not as a trickle charger. The spark-proof and reverse polarity protection make it safe for quick connections, but prolonged connection could drain the GB70’s battery or confuse your vehicle’s electrical system. I only keep it connected for a few minutes during the jump start process.
Can I use the power bank feature while the unit is charging?
No, the GB70 doesn’t support pass-through charging, so you can’t charge your phone while the unit itself is plugged into a wall outlet. I tried this and the unit simply ignored the phone connection until I unplugged the USB-C cable. It’s a minor inconvenience, but I plan ahead by charging the unit first, then using the power bank feature separately.
Does the GB70 work on motorcycles or ATVs?
Yes, it’s compatible with 12V motorcycles, ATVs, and even watercraft according to the spec list. I tested it on my friend’s motorcycle, and the 2000 amps is way more than needed for a small engine, but the UltraSafe protection ensures it won’t damage the battery. The compact size at 5 pounds makes it easy to pack for off-road trips, though the clamp cables might be a bit long for tight motorcycle battery compartments.
What happens if I connect the clamps backwards?
Nothing bad — the reverse polarity protection kicks in and the unit simply won’t power on until you swap the connections. I deliberately tested this by connecting the red clamp to the negative terminal, and the GB70 flashed a red warning light with no sparks or damage. It’s one of the reasons I found this unit perfect for beginners who worry about making mistakes with traditional jumper cables.
My Final Verdict
The NOCO Boost GB70: 2000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper delivered exactly what I needed for my diesel truck with its 2000 peak amps and spark-proof connections. At 5 pounds and 12.6 inches long, it fits in my glove box and handles engines up to 8.0L gas and 6.0L diesel. I’d recommend it to anyone who drives a full-size truck or SUV and wants one reliable, portable unit for emergencies.
The 6-hour recharge time is my biggest frustration, but the peace of mind from the UltraSafe technology and the convenience of the 400-lumen flashlight make it worth carrying. I still bought this unit for my own truck, and it lives in my glove box year-round.
Ready to Check the Price?
If you drive a truck or SUV and want a jump starter that balances power with portability, this is worth a look.
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