If you are looking at portable jump starters, you’ve likely encountered the NOCO brand. Specifically, the NOCO Boost HD GB70 Review is often the first stop for anyone running heavy-duty vehicles or equipment.
This isn’t a cheap tool, and you need to know if it delivers on its 2000-amp promise. We’re going to walk through our experience using the GB70 on everything from V8 trucks to farm equipment.
By the end, you will know exactly whether this powerful portable unit is the right investment for your garage or service truck.
What Is the NOCO Boost HD GB70?
The GB70 is a high-power, lithium-ion jump starter designed for 12-volt lead-acid batteries. It’s rated at 2000 peak amps.
This unit sits firmly in the heavy-duty category. It is marketed as suitable for large engines up to 8.0L gasoline and 6.0L diesel.
It’s not just a tiny device for sedans; it’s built for larger displacement vehicles, high-demand trucks, boats, RVs, and commercial vans. It is meant to be a reliable, self-contained roadside rescue tool.
Key Features and Real-World Benefits
When you invest in a unit this size, the features must translate directly into reliable power and safety. Here is where the GB70 shines in practical use.
Patented Safety Technology
This is perhaps the most critical selling point. The GB70 features spark-proof technology and reverse polarity protection.
- Outcome: You can connect the clamps quickly in a low-light or stressful situation without worrying about sparks or damaging the vehicle’s electronics due to incorrect hookup.
2000 Amps of Peak Cranking Power
This is the core capability. The 2000A rating provides the necessary punch for larger engines that require significant current draw to turn over.
- Outcome: It consistently starts V8 engines that are struggling due to cold weather or a moderately drained battery. It minimizes the time the starter motor has to crank, reducing strain.
Versatile Power Outputs
The unit includes both USB ports (for charging phones, tablets, etc.) and a 12V output port.
- Outcome: The 12V output is incredibly useful for powering small accessories like tire inflators, inverters, or maintaining the memory settings in a vehicle while the main battery is disconnected.
Evaluating the NOCO Boost HD GB70 Review: Use Cases
How does the GB70 perform when the rubber meets the road? We tested it in several common scenarios.
Starting a Cold-Soaked Truck
In freezing temperatures, battery performance drops significantly. We used the GB70 on a 6.7L diesel truck that had been sitting for three days in 20°F weather.
- Performance: The unit delivered a quick, strong crank. The truck fired up in under three seconds. The GB70’s clamps are robust and grip terminals securely, which is crucial for efficient power transfer.
Handling a Deeply Discharged Battery
If a battery is completely dead (below 2 volts), many smart jump starters won’t activate for safety reasons. The GB70 includes a manual override mode.
- Performance: The override feature works exactly as advertised, allowing you to force a jump. However, this bypasses the safety features, so you must be absolutely certain of your connections when using it. It saved us from a dead marine battery that standard chargers couldn’t recognize.
Where It Might Fall Short
While powerful, it’s important to understand limitations. If you are dealing with a massive commercial tractor-trailer (Class 8) with multiple batteries, or a vehicle requiring sustained, repeated cranking due to mechanical issues, the GB70 might not be enough.
It is designed for quick, high-burst assistance, not continuous heavy-duty shop use or replacing the function of a full-sized battery cart.
Honest Pros and Cons
Pros
- Extremely safe and virtually fool-proof connections.
- High power density in a relatively compact size.
- Excellent build quality; feels durable and ready for service.
- Reliable performance on large gasoline and mid-sized diesel engines.
- Includes versatile charging options (USB and 12V output).
Cons
- It is expensive compared to entry-level jump starters.
- The clamps, while robust, are somewhat bulky in tight engine bays.
- Recharging the unit itself takes several hours if it’s fully depleted.
- The included cables are relatively short, requiring the unit to sit very close to the battery terminals.
Who Should Use It (and Who Shouldn’t)
Ideal Users
- Owners of Heavy Trucks and SUVs: If you drive a modern V8, V10, or small diesel truck, this unit provides peace of mind far beyond smaller models.
- RV and Boat Owners: Reliable starting power for high-displacement marine or RV engines.
- Fleet Maintenance/Contractors: Professionals needing a portable, reliable booster for light commercial vehicles and equipment.
Who Shouldn’t Buy It
- Small Car Owners (4- or 6-cylinder): The GB40 (or similar lower-amp unit) offers plenty of power for less money. The 2000A capacity is overkill.
- Budget-Focused or Occasional Users: If you only need a jump once every few years for a small commuter car, the high price point is difficult to justify.
Common Questions or Concerns
How long does the charge last when stored?
NOCO claims the lithium battery holds its charge for about a year. Based on our experience, if stored properly at room temperature, it maintains a sufficient charge for several months. We recommend topping it off every three to four months if it’s sitting unused in a vehicle.
Is the power rating accurate?
Jump starter ratings are often confusing. The 2000A rating is peak output. What matters is the starting power delivered. In real-world tests, it consistently delivers the necessary cold-cranking amps to turn over large engines that would choke a smaller unit. The rating feels legitimate for its intended purpose.
What if the unit gets wet or dropped?
It is rated IP65, meaning it is water-resistant and protected against dust ingress. It’s tough enough to handle rain or snow during roadside use, and the casing is rugged. However, it is not submersible, and care should be taken with the exposed ports.
Verdict / Final Thoughts
The NOCO Boost HD GB70 review confirms that this unit is a serious tool for serious needs. It is expensive, but you are paying for reliability, safety, and capacity.
If you own a large vehicle, frequently work on heavy equipment, or simply cannot afford to be stranded due to a dead battery, the GB70 is a worthwhile investment.
It delivers professional-grade power in a consumer-friendly package. If your needs fall below a 6.0L engine, consider saving money on a smaller unit. But if you need reliable, heavy-duty starting power, the GB70 justifies its price tag through consistent performance and advanced safety features.
