How Many NOCO Boost Units Does It Take to Jump-Start a Tank?

It typically takes just one high-capacity NOCO Boost unit, like the GB70 or GB150, to jump-start a tank’s battery. While that might sound surprising given the massive size and power requirements of military tanks, modern NOCO Boost jump starters are engineered to deliver extremely high cranking amps designed for heavy-duty engines.

Tanks often use large lead-acid batteries similar in principle to truck batteries, but scaled up, so using a jump starter with enough peak amps is key.

If you’ve ever wondered whether a portable jump starter can handle something as big as a tank, you’re not alone. Many people assume multiple units or industrial equipment is necessary, but the reality is much simpler and more convenient.

Best NOCO Boost Units for Jump-Starting a Tank

When it comes to jump-starting massive military-grade vehicles like tanks, you need raw power, high cranking amps, and proven reliability. These three NOCO Boost units stand out from the rest:

NOCO Boost HD GB70

This jump starter delivers 2,000 amps and is built for 8.0L gas and 6.0L diesel engines, making it powerful enough for many military and industrial applications.

Why it’s recommended: The GB70 is compact yet incredibly powerful, offering dependable performance and fast starts even in cold or extreme weather conditions.

NOCO Boost Pro GB150

With 3,000 amps and compatibility with gas and diesel engines up to 10.0L, this is one of the most powerful jump starters available for commercial-grade vehicles.

Why it’s recommended: It’s a beast when it comes to power delivery—ideal for jump-starting tanks, semis, and other heavy-duty equipment without needing multiple units.

NOCO Boost X GBX155

A next-generation unit rated at 4,250 amps for 10.0L+ engines, with USB-C fast charging and advanced safety features for ultimate reliability in extreme environments.

Why it’s recommended: The GBX155 combines unmatched starting power with intelligent design, making it perfect for mission-critical starts in demanding field operations.

Can a Jump Starter Really Start a Tank?

Yes, but it depends on the battery system and the jump starter’s cranking amps. Tanks may look indestructible on the outside, but their electrical systems aren’t too different from heavy-duty diesel trucks under the hood.

Most tanks use 24V battery systems made up of two 12V lead-acid batteries connected in series. This means to jump-start them, you’ll need a jump starter that can either:

• Deliver enough power at 24 volts, or
• Be paired in a way to match the system’s voltage

Luckily, the top-tier NOCO Boost units—especially the GB150 and GBX155—are rated to deliver enough peak current (up to 4,250 amps) to engage massive diesel engines found in tanks.

Real-World Use

Military personnel and field mechanics often carry compact jump starters like the NOCO Boost for tanks, APCs, or mobile artillery, especially in rugged terrain. In emergency scenarios, having one ultra-capable jump starter is faster and more reliable than towing or using built-in generators.

Things to Keep in Mind:

• Battery condition matters: Severely drained or damaged batteries may need to be replaced.
• Temperature affects performance: NOCO Boost performs well in cold weather, but amp delivery can still be impacted.
• Check terminal access: Tanks may require specialized terminal connectors or grounding points.

How Much Power Does a Tank Really Need to Start?

Tanks typically require anywhere from 1,000 to 2,500 cranking amps to turn over their massive diesel engines, depending on the model, battery setup, and environmental conditions. This is a huge leap compared to regular vehicles, which often need just 400–800 amps.

Tank Battery Systems

Most modern tanks, like the M1 Abrams or older M60 Pattons, are powered by:

• 24V systems made of two 12V batteries
• Diesel or turbine engines that demand high burst power
• Multiple auxiliary systems that may draw battery power when idle

In cold weather or after long idle periods, battery resistance increases—requiring even more amps for a successful start.

NOCO Boost’s Power Output

Here’s how NOCO Boost models compare:

• GB70: 2,000 amps – Suitable for smaller armored vehicles or lightly powered tanks
• GB150: 3,000 amps – Powerful enough for most medium to heavy tanks
• GBX155: 4,250 amps – Ideal for worst-case scenarios or extremely cold climates

These units deliver instantaneous peak amps, which is exactly what’s needed to initiate combustion in a large diesel engine. That burst of power overcomes internal resistance and mechanical friction to get the engine running.

Key Power Factors:

• Peak amps vs. cranking amps: Peak is the highest output; cranking amps indicate sustained power.
• Battery condition: Even a tank’s battery needs some residual charge to complete the cycle.
• Engine size: Bigger doesn’t always mean harder to start, but more cylinders and accessories add load.

Can You Use Multiple NOCO Boost Units Together?

Technically yes—but it’s not recommended unless you’re experienced and know exactly what you’re doing. Using multiple NOCO Boost units in parallel or series can increase voltage or amperage, but improper connections can lead to sparks, short circuits, or even device failure.

Parallel vs. Series Setup

• Parallel Connection: Increases available amperage while maintaining the same voltage. This can be helpful for faster starts or deeply discharged batteries.
• Series Connection: Doubles the voltage (e.g., two 12V units = 24V), which is useful for systems like those in many tanks. However, this can be risky if not done correctly.

While NOCO doesn’t officially recommend combining units, military techs and off-grid mechanics sometimes do it in extreme situations using:

• Identical models (e.g., two GB150s)
• Heavy-duty jumper cables rated for the load
• Careful terminal positioning and grounding

Important Safety Precautions:

• Always consult the NOCO manual before attempting any non-standard use
• Wear safety gloves and eye protection
• Never mix models with different amp ratings
• Don’t connect more than two units at a time

When It Might Be Necessary

• In freezing conditions where batteries are severely drained
• For tanks with auxiliary power drains still running
• When a single unit fails to provide sufficient boost

Recommendation: If you anticipate needing to jump-start a 24V system regularly, invest in a unit rated for that task—like the NOCO GB251+, which is designed for 24V commercial batteries.

Which Tanks Could a NOCO Boost Realistically Start?

NOCO Boost units, especially the GB150 and GBX155, can realistically jump-start many light to medium armored military vehicles—not every tank ever made, but more than you might expect.

Tanks and Armored Vehicles Within Range

Here are a few examples of military vehicles that a NOCO Boost unit could handle, based on voltage systems and required cranking amps:

• M113 Armored Personnel Carrier
  Uses a 6.5L diesel engine with a 24V battery setup. A NOCO GB150 or GBX155 can deliver enough burst power to start it.
• BMP-2 Infantry Fighting Vehicle
  Smaller Russian vehicle with relatively modest power needs. Its 24V system aligns well with the output of high-end NOCO units.
• Humvee (HMMWV)
  Although not a tank, it’s widely used and has a 24V system. A GB150 easily handles it—even in cold climates.
• M60 Patton Tank
  Some field mechanics have used dual NOCOs or one GBX155 with proper precautions to initiate a start.

Tanks Outside NOCO’s Solo Capabilities

• M1 Abrams
  Powered by a gas turbine engine and extremely high electrical demands. Requires industrial-grade or vehicle-mounted starting systems.
• Challenger 2 (UK)
  Similar limitations—too large and complex for a handheld jump starter.

Considerations for Real-World Scenarios

• Field mechanics in war zones or rugged conditions prefer compact, versatile jump starters.
• A single NOCO can serve multiple vehicles, making it a vital backup tool.
• Lightweight and portable compared to massive military-grade jump carts.

Why the NOCO Boost Series Stands Out in Extreme Conditions

The NOCO Boost series is designed for high-performance starts in extreme environments—making it ideal even for heavy-duty vehicles like tanks. Its rugged build, high amp delivery, and advanced safety tech put it in a class of its own.

Engineered for Harsh Conditions

Military and industrial users don’t just need power—they need reliability in freezing, wet, and dusty environments. The NOCO Boost excels here:

• Temperature Resistance: Works in temperatures as low as -4°F (-20°C)
• Water-Resistant Casing: IP65-rated enclosure prevents water and dirt intrusion
• Ultra-Safe Spark Protection: Prevents accidental shorting, even when rushed

This makes it usable in combat zones, oil fields, mountain ranges, and remote rural settings—exactly where tanks sometimes sit idle.

Smart Features That Add Value

• Reverse Polarity Protection: You can’t hook it up wrong—it’ll warn you
• USB and 12V Outputs: Charge devices or run accessories
• Digital Readouts: Know your voltage level and unit charge at a glance
• Fast Recharge Times: The GBX series recharges up to 5X faster with USB-C

Tested and Trusted Worldwide

From NATO mechanics to remote construction sites, NOCO Boost units are a go-to solution when other options fail. They’ve been used on:

• Diesel excavators
• Emergency response vehicles
• Armored transports
• Military support trucks

Conclusion

So, how many NOCO Boost units would it take to jump-start a tank? In many cases, just one high-powered unit like the GB150 or GBX155 is enough—especially for light to medium military vehicles and support armor. For larger tanks, such as the M1 Abrams, NOCO units may not be sufficient on their own, but they can still be useful in emergencies or with creative, cautious configurations.

What makes NOCO stand out is not just raw power—but intelligent design, portability, and durability. These units are trusted by mechanics, military personnel, and off-road enthusiasts because they consistently deliver in high-stakes environments.

Whether you’re reviving a Humvee in the cold or giving an old APC one more ride, the right NOCO Boost model gives you confidence that you can get going again—no matter what you drive or where you are.

Frequently Asked Questions About Jump-Starting a Tank With a NOCO Boost

Can a NOCO Boost jump-start a real tank?

Yes, but it depends on the tank. Light to medium armored vehicles such as the M113 APC or BMP-2 can often be jump-started with a high-powered NOCO Boost like the GB150 or GBX155. Larger battle tanks like the M1 Abrams require much more power and are beyond the NOCO’s capabilities alone.

Which NOCO Boost is the most powerful for this kind of job?

The NOCO Boost Max GB500+ is the most powerful consumer-grade model, delivering up to 6250 amps and capable of starting commercial 24V diesel engines. However, the GBX155 (4250A) and GB150 (3000A) are more portable and still handle many military-grade engines effectively.

Can I connect two NOCO Boost units together to jump-start a larger vehicle?

Yes, but only with caution. Parallel connections (same voltage, increased amps) are possible and sometimes used in the field. Series connections (increased voltage) can be dangerous and should only be done by professionals. Always check compatibility, polarity, and safety recommendations.

Is jump-starting a tank with a NOCO Boost safe?

When done properly, yes. NOCO Boost units are equipped with reverse polarity protection, spark-proof technology, and overcharge safeguards. However, the risk increases significantly if you attempt to combine units or use the wrong model.

Why not just use traditional jump-start carts or generators?

Those are great—if you have them. But they’re bulky, expensive, and not always available in the field. A NOCO Boost is portable, quick to deploy, and user-friendly, making it a valuable backup or frontline tool.