NOCO Boost GBX155 4250A UltraSafe vs NOCO Boost GB150 3000A UltraSafe: Spec Comparison

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The noco boost gbx155 4250a ultrasafe vs boost gb150 3000a ultrasafe comparison highlights two robust 12V lithium jump starters. Both models feature UltraSafe technology with spark-proof and reverse polarity protection, along with 500-lumen LED flashlights and USB-C charging ports. They share similar gray housings and include heavy-duty clamps and storage bags. The primary difference lies in their peak current output and engine compatibility, with the GBX155 offering higher amperage for larger engines and faster recharge times.

Peak Amps

4250A

3000A

Gas Engine Rating

Up to 10.0L

Up to 9.0L

Diesel Engine Rating

Up to 8.0L

Up to 7.0L

Recharge Time

2.7 hours

7 hours

Weight

7.01 pounds

7.5 pounds

Choose the first if

• You need to jump-start large gasoline engines up to 10.0L or diesel engines up to 8.0L.
• You want to recharge the unit fully in just 2.7 hours via USB-C Power Delivery.
• You prefer a slightly lighter device at 7.01 pounds.

Choose the second if

• You typically service smaller gasoline engines up to 9.0L or diesel engines up to 7.0L.
• You need up to 80 starts per charge on compatible engines.
• You are satisfied with a standard 7-hour recharge time.

Verdict

Choose the GBX155 if you require higher peak current for larger engines or faster recharge capabilities. The GB150 remains a solid choice for smaller vehicles and standard emergency preparedness needs.

GBX155 vs GB150 Spec Breakdown

Starting Power

Edge: NOCO GBX155 4250A Jump Starter

The NOCO GBX155 delivers 4,250 peak amps, while the GB150 provides 3,000 amps. This difference allows the GBX155 to handle larger engines, supporting gas engines up to 10.0 liters and diesel engines up to 8.0 liters. The GB150 is rated for gas engines up to 9.0 liters and diesel engines up to 7.0 liters. If you work with heavy-duty vehicles or larger displacement engines, the higher amperage of the GBX155 offers a wider safety margin for reliable starts in cold conditions. Both units use lithium battery technology for consistent power delivery.

Recharge Speed

Edge: NOCO GBX155 4250A Jump Starter

Charging times differ significantly between the two models. The GBX155 features Turbo Chargeable technology, allowing it to recharge in just 2.7 hours via USB-C Power Delivery. It can also gain enough power for a jump start in five minutes, even from a completely depleted state. In contrast, the GB150 requires seven hours to fully recharge. For users who need quick turnaround times or frequent use, the faster charging capability of the GBX155 is a practical advantage, ensuring the device is ready for immediate deployment without long waiting periods.

Charge Capacity

Edge: NOCO GB150 3000A Jump Starter

The number of jump starts per charge varies based on engine size and usage. The GBX155 is designed to deliver up to 18 jump starts per charge, leveraging its high-voltage design and a 60-second timer to conserve power. The GB150 claims up to 80 starts per charge on smaller engines. This higher count for the GB150 likely applies to smaller displacement engines where less current is required per start. For larger engines, the GBX155’s higher amperage may result in fewer total starts, but each start carries more power.

Power Output

Edge: NOCO GBX155 4250A Jump Starter

Both units serve as portable power banks, but their output capabilities differ. The GBX155 includes a 60-watt USB-C Power Delivery port, enabling it to charge laptops, tablets, and phones rapidly. This dual-direction charging allows the GBX155 to act as a high-output power source for various electronics. The GB150 also functions as a power bank for smartphones and tablets but does not specify a wattage output or Power Delivery support in its listed features. If you need to charge high-drain devices like laptops, the GBX155 is the more versatile option.

Durability and Build

Edge: NOCO GB150 3000A Jump Starter

The GB150 features a rugged IP65-rated housing with rubberized over-molding, providing protection against water, dust, and impact. This specification ensures the device can withstand harsh environmental conditions. The GBX155 data does not explicitly list an IP rating or specific ruggedization details in the provided specifications. While both units share similar gray housings and include heavy-duty clamps, the GB150’s stated IP65 rating offers a clear advantage for users operating in wet or dusty environments where water ingress is a concern.

Physical Dimensions

Edge: NOCO GBX155 4250A Jump Starter

The physical size and weight of the units are very similar. The GBX155 measures 4.84 inches in width, 13.5 inches in height, and 8.18 inches in length, weighing 7.01 pounds. The GB150 is slightly larger at 4.88 inches wide, 13.7 inches high, and 8.19 inches long, weighing 7.5 pounds. Both are compact enough for glove boxes or emergency kits. The GBX155 is marginally lighter and smaller in all dimensions, making it slightly more portable, though the difference is minimal and unlikely to affect storage decisions significantly.

Choose the right NOCO jump starter

Driver of large gas or diesel trucks

Our pick: NOCO GBX155 4250A Jump Starter

The GBX155 delivers 4,250 peak amps. This power handles gas engines up to 10.0 liters and diesel engines up to 8.0 liters. You get faster recharging via USB-C Power Delivery. It takes just 2.7 hours to fully charge. You also gain up to 18 jump starts per charge. This model suits heavy-duty vehicles needing robust starting power.

Driver of standard passenger vehicles

Our pick: NOCO GB150 3000A Jump Starter

The GB150 provides 3,000 peak amps. This handles gas engines up to 9.0 liters and diesel engines up to 7.0 liters. You get up to 80 starts per charge. It offers spark-proof and reverse polarity protection. The IP65-rated housing resists water and dust. This compact unit fits easily in glove boxes for everyday emergencies.

User needing fast emergency top-ups

Our pick: NOCO GBX155 4250A Jump Starter

The GBX155 recharges in 2.7 hours via USB-C. You gain enough power for a jump start in just 5 minutes, even from a depleted battery. It features a 60-second timer to conserve power. This rapid recharge capability ensures you are ready quickly. The 60-watt USB-C port also charges phones and tablets efficiently during waits.

Specifications side by side

Spec	NOCO GBX155 4250A Jump Starter	NOCO GB150 3000A Jump Starter
Peak Amps	4250A	3000A
Voltage	12V	12V
Gas Engine Rating	Up to 10.0L	Up to 9.0L
Diesel Engine Rating	Up to 8.0L	Up to 7.0L
Battery Type	Lithium	Lithium
Charging Power	60W	–
Recommended Use	Motorcycles	Motorcycles
Features	Reverse Polarity Protection	Reverse Polarity Protection
Dimensions	8.18 × 4.84 × 13.5 inches	8.19 × 4.88 × 13.7 inches
Weight	7.01 pounds	7.5 pounds
Size	4250A	3000 Amps
Color	Gray	Gray
Model	GBX155	GB150

Frequently asked questions

Which NOCO jump starter handles larger diesel engines?

The GBX155 supports larger diesel engines up to 8.0 liters. The GB150 is rated for up to 6.0 liters. If you drive a heavy-duty diesel truck, the higher peak current of the GBX155 provides the necessary cranking power. Both units use 12V lithium batteries for reliable starts.

Is the GBX155 smaller than the GB150?

The GBX155 is slightly more compact in height. It measures 13.5 inches tall, while the GB150 stands at 13.7 inches. The width and length are nearly identical. The GBX155 also weighs less at 7.01 pounds compared to the GB150’s 7.5 pounds. This makes the GBX155 marginally easier to carry.

Do both models offer reverse polarity protection?

Yes, both jump starters include reverse polarity protection. This feature prevents damage if you connect the clamps incorrectly. It ensures safe operation even during emergency situations. This UltraSafe technology is a standard safety feature on both the GBX155 and the GB150 models.

Can I charge my phone with these devices?

Both units feature USB-C ports for charging external devices. You can use them to power smartphones or tablets. The GBX155 supports fast 60W charging via USB-C Power Delivery. This allows you to recharge your phone quickly while on the road or during a roadside stop.

What is the peak amp difference between them?

The GBX155 delivers 4,250 peak amps, while the GB150 provides 3,000 amps. This 1,250-amp difference allows the GBX155 to start larger engines more effectively. For standard vehicles, both provide ample power. The extra current in the GBX155 is beneficial for cold starts or larger gas engines.

Are these jump starters spark-proof?

Yes, both models are spark-proof. This means you can connect the clamps to a dead battery without risking sparks. It adds a layer of safety for you and your vehicle. The UltraSafe design ensures safe operation in various weather conditions and engine compartments.

Which model is better for motorcycles?

Both models list motorcycles in their recommended use. They provide sufficient power for two-wheelers. However, the GBX155 offers higher peak amps. If you ride larger motorcycles or want extra versatility, the GBX155 is suitable. The GB150 remains a compact and reliable choice for smaller bikes.

Do they include LED lights?

Yes, both units come with 500-lumen LED flashlights. You can use these lights for visibility in dark conditions. They serve as emergency lighting for roadside repairs. The bright LEDs help you see connections and work safely at night or in low-light environments.

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