NOCO Boost GB70 2000A UltraSafe vs NOCO Boost GBX55 1750A UltraSafe (2026): Key Differences

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The noco boost gb70 2000a ultrasafe vs boost gbx55 1750a ultrasafe comparison highlights two distinct approaches to portable jump starting. Both units feature NOCO’s UltraSafe technology, offering spark-proof connections and reverse polarity protection for safe use on 12V vehicles. They share lithium battery construction and integrated LED flashlights. The main difference lies in their power output and charging speed. The GB70 delivers higher peak amps for larger engines, while the GBX55 focuses on rapid recharging and lighter weight for extreme performance scenarios.

Peak Amps

2000A

1750A

Gas Engine Rating

Up to 8.0L

Up to 7.5L

Diesel Engine Rating

Up to 6.0L

Up to 5.0L

Recharge Time

6 hours

1.2 hours via USB-C PD

Weight

5 pounds

3.37 pounds

LED Flashlight Brightness

400 lumens

200 lumens

Choose the first if

• You need to jump start larger gasoline engines up to 8.0L or diesel engines up to 6.0L.
• You prefer a brighter 400-lumen LED flashlight for better visibility during repairs.
• You want a device with a higher peak amperage rating for maximum starting power.

Choose the second if

• You need to recharge the unit quickly, in just 1.2 hours via USB-C Power Delivery.
• You prioritize a lighter, more compact form factor at 3.37 pounds.
• You want to charge high-power devices like laptops using 60W USB-C output.

Verdict

Choose the GB70 if you regularly service larger vehicles or need brighter auxiliary lighting. Select the GBX55 if you value rapid recharging, lower weight, and higher USB output power for other electronics. Both models provide safe, spark-proof starting for most standard 12V vehicles.

GB70 vs GBX55 Comparison

starting power

Edge: NOCO GB70 2000A Jump Starter

The NOCO Boost GB70 delivers 2000 amps of peak power, while the GBX55 provides 1750 amps. This difference affects engine compatibility. The GB70 handles gas engines up to 8.0L and diesel engines up to 6.0L. The GBX55 is rated for gas engines up to 7.5L and diesel engines up to 5.0L. If you own a larger vehicle or a heavy-duty diesel truck, the GB70 offers more margin. The GBX55 is sufficient for most standard cars and smaller trucks. Both units use lithium batteries for reliable cold-weather starts. You should choose based on your largest engine size.

recharge speed

Edge: NOCO GBX55 1750A Jump Starter

Charging times differ significantly between these two jump starters. The GBX55 features Turbo Chargeable technology, allowing it to recharge in just 1.2 hours via USB-C Power Delivery. It can also gain enough power for a single jump start in five minutes from a depleted state. The GB70 takes approximately 6 hours to fully recharge. If you need a quick top-up before a trip or after a recent use, the GBX55 is much faster. The GB70 requires overnight charging to be fully ready. For frequent users who need rapid turnaround, the GBX55’s fast charging is a practical advantage.

portable power output

Edge: NOCO GBX55 1750A Jump Starter

Both devices include USB-C ports to charge electronics, but the output power varies. The GBX55 offers 60-watt USB-C Power Delivery, enabling it to charge laptops, tablets, and phones quickly. It supports dual-direction charging, acting as a high-output power bank. The GB70 includes an integrated power bank feature but does not specify a wattage output in the provided data. It recharges devices in 6 hours. For users who need to charge high-power devices like laptops or need faster charging speeds for phones, the GBX55 is the better choice. The GB70 is adequate for standard phone charging.

flashlight brightness

Edge: NOCO GB70 2000A Jump Starter

Each unit includes an integrated LED flashlight with seven modes, including SOS and strobe. The GB70 produces 400 lumens of light, while the GBX55 produces 200 lumens. The higher output on the GB70 makes it more effective for illuminating large engine bays or working in dark environments. The GBX55’s 200 lumens is sufficient for basic repairs and emergency signaling. If you frequently work in low-light conditions or need to see deep into a vehicle’s engine compartment, the GB70 provides better visibility. For occasional use or signaling, both are functional.

build and weight

Edge: Tie

Portability and durability are key factors. The GB70 weighs 5 pounds and measures 6 inches wide by 8.8 inches tall. It features an IP65-rated housing with rubberized over-molding for protection against water and dust. The GBX55 is lighter at 3.37 pounds and has different dimensions. Both units share the same rugged design philosophy and include heavy-duty clamps and microfiber storage bags. The GB70’s IP65 rating is explicitly stated, ensuring robust protection. The GBX55 is lighter and easier to carry, but the GB70 offers confirmed weather resistance. Both are built to last in emergency kits.

Which NOCO jump starter fits your needs

You need maximum starting power for large engines

Our pick: NOCO GB70 2000A Jump Starter

The GB70 delivers 2000 amps of peak current. This higher output allows it to start gas engines up to 8.0L and diesel engines up to 6.0L. If you drive a large vehicle or work with heavy machinery, this extra amperage provides the necessary torque to turn over stiff or cold engines reliably.

You want the fastest possible recharge time

Our pick: NOCO GBX55 1750A Jump Starter

The GBX55 recharges in just 1.2 hours via USB-C Power Delivery. It can also gain enough power for a jump start in five minutes from a depleted state. This rapid charging capability ensures the unit is ready for use quickly, making it ideal for users who prioritize speed and convenience.

You need a lighter unit for easy storage

Our pick: NOCO GBX55 1750A Jump Starter

The GBX55 weighs only 3.37 pounds, which is significantly lighter than the 5-pound GB70. Its compact dimensions also make it easier to fit in tight spaces like glove boxes or emergency kits. If weight and portability are your main concerns, this model offers a more manageable form factor.

Specifications side by side

Spec	NOCO GB70 2000A Jump Starter	NOCO GBX55 1750A Jump Starter
Peak Amps	2000A	1750A
Voltage	12V	12V
Gas Engine Rating	Up to 8.0L	Up to 7.5L
Diesel Engine Rating	Up to 6.0L	Up to 5.0L
Battery Type	Lithium	Lithium
Charging Power	–	60W
Recommended Use	Motorcycles	Motorcycles
Features	Reverse Polarity Protection	Reverse Polarity Protection
Dimensions	2.8 × 6 × 8.8 inches	6.34 × 3.94 × 9.13 inches
Weight	5 pounds	3.37 pounds
Size	2000 Amps	1750A
Color	Gray	Gray
Model	GB70	GBX55

Frequently asked questions

Which NOCO jump starter is lighter for portability?

The GBX55 is the lighter option at 3.37 pounds. The GB70 weighs 5 pounds. You should choose the GBX55 if you want a unit that is easier to carry in your glove compartment or trunk without adding significant weight to your vehicle.

Does the GBX55 support diesel engines?

The published data for the GBX55 does not list a diesel engine rating. It is rated for gas engines up to 7.5L. If you need to jump-start a diesel vehicle, the GB70 is the better choice as it supports diesels up to 6.0L.

How do the physical dimensions compare between the two models?

The GB70 measures 6 inches wide by 8.8 inches high and 2.8 inches long. The GBX55 is 3.94 inches wide, 9.13 inches high, and 6.34 inches long. The GB70 is shorter in length, while the GBX55 is taller and deeper.

Are both units safe for motorcycle batteries?

Yes, both the GB70 and GBX55 list motorcycles as a recommended use. Both feature reverse polarity protection, which prevents damage if you connect the clamps incorrectly. This makes them suitable for smaller vehicles like motorcycles alongside standard cars and trucks.

What is the maximum gas engine size the GB70 can start?

The GB70 is rated for gas engines up to 8.0L. This higher amperage output of 2000A allows it to handle larger displacement engines. The GBX55, with 1750A, is rated for engines up to 7.5L.

Do both jump starters use lithium batteries?

Both the GB70 and GBX55 use lithium battery technology. This construction allows for a compact form factor and efficient power delivery. Lithium batteries also tend to hold their charge better over time compared to older lead-acid alternatives.

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