Is the NOCO Boost GB40 worth it?
A top pick in Tools & Equipment on Amazon (#9 when we checked, Oct 21, 2026)
Worth it if you drive a 12V car, truck, motorcycle, ATV, RV, or similar vehicle and want a compact backup for a dead battery. Its 1000A output, spark-proof connections, flashlight, and USB-C power bank cover more than one roadside problem.
Good to know: If your vehicle exceeds 6.0L gasoline or 3.0L diesel, look for a jump starter rated for your engine size.
A compact jump starter that keeps roadside problems manageable
The NOCO Boost GB40 earns its space by putting the jump-start hardware, safety controls, light, and backup charging into one 2.4-pound unit. The main design choice is its UltraSafe connection system. Spark-proof protection and reverse-polarity protection are built into the 12V setup, so the clamps are designed to make an incorrect connection less likely to become a dangerous one. That matters when you are working beside a car, perhaps in poor light and with cold fingers.
The unit is rated at 1000A and the maker lists support for engines up to 6.0L gas and 3.0L diesel, with up to 20 starts per charge under those stated conditions. High-conductivity clamps transfer the available energy to the vehicle battery, while the lithium battery keeps the pack small enough for a glove box or emergency kit. Check your engine size before buying. The rating is specific, not a universal promise.
The same pack also gives you a 100-lumen LED flashlight with seven modes, including SOS and strobe, plus a USB-C power bank for phones and tablets. Its IP65-rated housing and rubberized over-molding are intended to protect against water, dust, and impact. The result is a practical backup kit, not just a set of jumper cables.
You get a jump starter, heavy-duty clamps, USB-C charging cable, storage bag, flashlight, and emergency power bank in one compact unit. That lets one glove-box tool cover starting, lighting, and basic device charging.
Great for
- Drivers keeping a backup in a glove box or emergency kit
- Owners of 12V cars, trucks, motorcycles, ATVs, RVs, or watercraft
- Road travelers who want a flashlight and phone charger in the same pack
- Vehicles with engines up to 6.0L gas or 3.0L diesel
Maybe not for you if
- Your engine exceeds the listed 6.0L gas or 3.0L diesel rating
- You need a jump starter for a non-12V electrical system
- You want a larger unit designed beyond this compact vehicle range
The NOCO Boost GB40 is worth it for drivers who want a compact 12V backup ready for a dead battery, especially if they travel, park away from home, or keep an emergency kit in the vehicle. Its 1000A rating covers engines up to 6.0L gas and 3.0L diesel, while spark-proof and reverse-polarity protection make the connection process more approachable. The flashlight and USB-C power bank add useful roadside support. Check the engine-size rating first, then keep it charged and ready for the moment you need to get moving.
Amazon shoppers rate it 4.6 out of 5 across 130,062 ratings. That is their number, not ours.
Want the full picture? Read our NOCO Boost GB40 12V 1000A UltraSafe Portable Lithium review.
Quick answers before you buy
What engine sizes does the GB40 support?
It is rated for engines up to 6.0L gasoline and 3.0L diesel. Check your vehicle’s engine size before ordering.
Is the GB40 compatible with my vehicle?
It is designed for 12V vehicles, including cars, trucks, motorcycles, ATVs, RVs, tractors, UTVs, vans, and watercraft.
What is included with the NOCO GB40?
The box includes the GB40 jump starter, heavy-duty booster clamps, USB-C charging cable, microfiber storage bag, user guide, and a 1-year limited warranty.
Does it also charge phones?
Yes. The integrated power bank is designed to provide emergency power to smartphones, tablets, and other devices.
Does the GB40 have a built-in light?
Yes. It has a 100-lumen LED flashlight with seven modes, including SOS and strobe for low-light situations.
The spec sheet, for those who want it
| Battery Type | Lithium |
|---|---|
| Voltage | 12 volts |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Battery Capacity | 2150 milliamp_hours |
| Amperage | 1000 A |
| Peak Output Current | 1000 A |
| Automotive Fit Type | Universal Fit |
| Item Dimensions D x W x H | 4.61"D x 8.19"W x 4.21"H |
| Item Weight | 2.4 pounds |
| Specification Met | UL |
| Brand Name | NOCO |
| Manufacturer Part Number | GB40 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Item Highlight | Spark-Proof & Reverse Polarity Protection, For Car, Truck, Motorcycle, SUV, Boat, ATV, RV, up to 6.0L Gas & 3.0L Diesel |
| Unit Count | 1 Count |
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