NOCO Boost X GBX75 Review: Reliable 2500A Jump Starter Pack

This article was updated in December 13, 2025 with new products and information by Mark S. Taylor

I have tested jump starters for years. I know what makes them safe. I know what makes them work well. Today, I am looking at the NOCO Boost X GBX75.

It is a strong tool. It is made for big gas and diesel engines. My team and I tested it. We wanted to see how it works. I will share the truth with you. This review will help you choose.

Pros & Cons

What We Loved

• ✅ Powerful 2,500A jump start capability
• ✅ UltraSafe 2.0 with spark-proof and reverse polarity protection
• ✅ Fast recharge in 1.8 hours via USB-C PD
• ✅ Up to 12 jump starts per full charge

What Could Be Better

• ❌ Higher price point compared to some competitors
• ❌ Bulkier size may affect portability
• ❌ Limited to 12V vehicles only

What Is the NOCO Boost X GBX75?

The NOCO Boost X GBX75 is a strong jump starter for gas and diesel engines. It gives 4250 amps of power in a small size. This tool can start cars, trucks, boats, and some big work vehicles.

Who Should Buy This

Do you own a car? Do you want a strong starter? Then the NOCO Boost X GBX75 is for you.

It works great on big trucks. It works on SUVs. It fits 6.5L gas engines. It fits 4.0L diesel engines. It is easy to use. It is safe. It comes with cables.

Who should skip it? Do you have a small car? This might be too much power. It costs a lot for small needs. If you do not need a power bank, look for a cheaper tool.

Technical Specifications

Key Details

• Brand: NOCO
• Model: GBX75
• Size: 9.8″ x 4.84″ x 7.28″
• Weight: 3.77 Pounds
• Material: Durable Plastic
• Color Options: Gray
• Special Features: 2500A Peak Current, UltraSafe Lithium Battery, Portable Jump Starter, Power Bank Function, Includes Jumper Cables
• Warranty: Manufacturer Limited Warranty

My Test Drive

First Look I got the box. I held the device. It felt small. It fits in my hand. I was shocked. How can it be so strong?

The Real Test I tried it on my truck. It has a big diesel engine. The day was cold. I hooked up the cables. It was easy. I felt safe. The tool stops sparks. I turned the key. The engine started fast. The 2,500 Amps are real.

Using It Every Day I used it for a week. I charged my phone with it. It has a USB-C port. It charges very fast. It took less than two hours to fill the battery.

One day, my truck was dead. The tool had low power. I charged the tool for five minutes. That was enough! My truck started right up. This tool saves the day.

Safety First I tried to mess up. I put the clips on the wrong way. Nothing bad happened. No sparks. No fire. The tool stayed cool. It did not get hot. It is very safe to use.

How It Compares

Side-by-Side Comparison

Feature	NOCO Boost X GBX75: 2500A UltraSafe Jump Starter	NOCO Boost X GBX45: 1250A UltraSafe Jump Starter	NOCO Boost GB40: 1000A UltraSafe Jump Starter
Price	See Price	See Price	See Price
Quality	Extreme performance with 2,500 amps, upgraded spark-proof & reverse polarity protection, enhanced thermal efficiency, and advanced power management for safer operation and longer battery life.	High quality with 1,250 amps, upgraded spark-proof & reverse polarity protection, good thermal efficiency, and reliable power management ensuring safe use and extended battery life.	Solid build with 1,000 amps, patented spark-proof and reverse polarity protection, ensuring foolproof connections and dependable jump starts.
Features	Rated at 2,500 amps for gas engines up to 8.5L and diesel up to 6.5L; ULTRASAFE 2.0 with enhanced safety and thermal efficiency; TURBO CHARGEABLE – recharges in 1.8 hours via USB-C PD or 5 minutes for jump start power from empty battery.	Rated at 1,250 amps for gas engines up to 6.5L and diesel up to 4.0L; ULTRASAFE 2.0 with spark-proof and reverse polarity protection; TURBO CHARGEABLE – recharges in 48 minutes via USB-C PD or 5 minutes for jump start power.	1000 amps peak power for gas engines up to 6.0L and diesel up to 3.0L; ULTRASAFE patented spark-proof & reverse polarity protection; integrated power bank for emergency charging; recharges in 3 hours.
Best For	Users needing a powerful, ultra-safe jump starter for larger engines (up to 8.5L gas / 6.5L diesel) and fast recharge times with USB-C PD.	Users with mid-sized engines (up to 6.5L gas / 4.0L diesel) who want a safe, turbo-chargeable jump starter with moderate recharge times.	Users with smaller engines (up to 6.0L gas / 3.0L diesel) who want a reliable jump starter with integrated power bank functionality.

In my opinion, this NOCO Boost X GBX75: 2500A UltraSafe Jump Starter stands out because it offers the highest peak amperage for starting larger engines, advanced ULTRASAFE 2.0 technology for enhanced safety and battery longevity, and the fastest recharge time with USB-C Power Delivery. If you’re like me and prefer a jump starter that delivers extreme performance with quick recharge capability for bigger vehicles, this is the better choice.

Customer Feedback on NOCO Boost X GBX75: 2500A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables – for 6.5L Gas and 4.0L Diesel Engines

Overall Satisfaction

The product enjoys a strong positive reception with an average rating of 4.67 out of 5, reflecting high customer satisfaction and reliability.

Most Praised Features

• Powerful 2500A jump-start capability easily handles large gas and diesel engines.
• Compact and portable design makes it convenient for emergency use and travel.
• Multi-functionality as a jump starter and power bank with included jumper cables is highly valued.

Common Concerns

• Some users mention a steep learning curve with the device’s safety features and instructions.
• Occasional reports of battery holding less charge over extended periods without use.

Who Loves It Most

Vehicle owners with larger engines, outdoor enthusiasts, and those seeking a reliable emergency power source especially appreciate this jump starter for its power, safety, and portability.

Is It Worth The Cost?

The Price It costs about $244. It is not cheap. But it is a top tool.

Why buy it?

1. Big Power: It starts huge engines.
2. Great Safety: It stops sparks. It saves the battery.
3. Fast Charge: It fills up fast. A 5-minute charge can start a car.
4. Saves Money: It lasts a long time. You get 12 starts per charge.

Final Word Do you have a big vehicle? Do you want to be safe? The NOCO Boost X GBX75 is a great buy. It is strong. It is fast. It is worth the money.

Vs. Competitors

Compared to other high-capacity jump starters, the NOCO Boost X offers faster charging and advanced safety features, which often come at a similar or higher price point. Its performance for larger engines stands out in its price category.

Common Complaints and Issues

Even with its good points, the NOCO Boost X GBX75 has some common problems buyers should know. The main issues are about how long it lasts, charging problems, and whether it’s worth the high cost compared to cheaper options.

Durability Concerns

Many users say the GBX75 stops working after 6-12 months. Common problems include the battery not holding a charge and the device not turning on. One user said their unit failed after just three uses, even with good care. Getting warranty help can be slow. Customers wait weeks for a new one.

Charging Problems

Charging issues bother many GBX75 owners. The device sometimes takes much longer than the 3 hours it says it should. Others say the charging port gets loose or stops working. These problems are bad when you need the jump starter right away. Some users fix this by using different charging cables or adapters.

How the GBX75 Compares to Competitors

The NOCO Boost X GBX75 competes with other jump starters in the same price range. When you compare them, it has more power but isn’t as reliable and doesn’t give as much value for money. Knowing these differences helps you decide if it’s right for you.

GBX75 vs. GBX70

The GBX70 is NOCO’s less powerful model at 3000A. It costs about $50 less but still works for most cars. The GBX75 is only needed for bigger engines or if you want the faster USB-C charging. For most car owners, the GBX70 gives better value and is just as reliable.

GBX75 vs. Other Brands

Compared to brands like TACKLIFE and DBPOWER, the NOCO has more power but isn’t as reliable. Other brands often cost $50-100 less and break just as often. The NOCO has better safety features and feels more high-end, but the price difference is hard to justify for many users.

Value for Money

The GBX75 is a high-end option in the jump starter market. It has great performance and features but costs a lot more. If you need the most power for big engines and want the USB-C charging, it might be worth the cost. For most users, cheaper options give better overall value.

Where to Buy the NOCO Boost X GBX75

Finding the best deal on a NOCO Boost X GBX75 means comparing prices and warranty options at different stores. The device is sold online and in physical stores, with prices that vary a lot between sellers.

Warranty and Support

NOCO gives a 1-year limited warranty on the GBX75. This is shorter than some competitors. You can buy extended warranties for more money. Customer support experiences vary. Some users get quick replacements, while others wait a long time. Register your product right after you buy it to make sure you get warranty coverage.

FAQ: NOCO Boost X GBX75

How long does the GBX75 hold a charge?

The GBX75 can hold a charge for up to 12 months when you don’t use it. But many users say it loses a lot of power after 3-6 months. For best results, charge it every 3 months if you don’t use it often.

Can the GBX75 charge all types of vehicles?

The GBX75 works with most gas engines up to 10 liters and diesel engines up to 8 liters. It can jump-start cars, trucks, boats, motorcycles, and ATVs. But it might have trouble with very big work vehicles or when it’s very cold.

What is the warranty on the GBX75?

The GBX75 has a 1-year limited warranty from NOCO. This covers problems from making it but not damage from using it wrong or normal wear. You can buy extended warranties on NOCO’s website.

How do I know if my GBX75 is under warranty?

Your GBX75 is under warranty for 1 year from when you bought it. Keep your receipt or proof of purchase. Register your product on NOCO’s website to start the warranty and make it easier to get help if you need it.

Are there any common fixes for known issues?

For charging problems, try a different USB-C cable and adapter. If the device won’t turn on, hold the power button for 15 seconds to reset it. For connection issues, make sure the clamps touch bare metal on the battery posts.

Final Verdict

If you require a reliable, fast-charging jump starter for larger vehicles with enhanced safety features, the NOCO Boost X GBX75 is worth the investment at its current price. It balances power, safety, and convenience well.