NOCO Boost GB40 Review: A Compact Jump Starter with Serious Power for Cars and Vans
If you have ever been stranded due to a flat car battery, you likely understand the value of a reliable jump starter. The NOCO Boost GB40 is a compact yet powerful device designed to get vehicles back on the road quickly and efficiently. This review explores its features, performance, and overall value.
Premium Quality and Established Brand Reputation
NOCO is a well-established brand in the automotive accessories market, particularly popular in the United States. Their products are widely available in motor factors and retailers like Halfords. The GB40 model represents the premium end of portable jump starters, with a current price of approximately £100.41 on Amazon.
Despite its compact size and weight of just over one kilogram, the GB40 delivers impressive cranking power. It is capable of starting a six-litre petrol engine or a three-litre diesel engine, making it suitable for a wide range of vehicles, including vans and motorhomes.
Key Features and Practical Design
The NOCO Boost GB40 boasts several practical features that enhance its usability:
- Integrated 100-Lumen Torch: A built-in flashlight provides illumination in low-light situations, adding to the device's utility during emergencies.
- USB-A Power Bank Functionality: It includes a USB-A output, allowing it to serve as a portable power bank for charging electronic devices, though charging speed is noted as relatively slow.
- Durable and Waterproof Construction: The unit is protected by tough rubber mouldings, making it impact-resistant and waterproof for reliable performance in various conditions.
- Spark-Proof Clamps: The included clamps are of decent size and designed to prevent sparks, ensuring safer connections during use.
Ease of Use and Recharging Considerations
One of the standout aspects of the GB40 is its simplicity. It features a clear LED indicator and requires no complex settings. Users simply connect it to the vehicle's battery, start the engine, and remove the device. The unit automatically detects polarity, eliminating the need for manual adjustments and reducing the risk of errors.
Recharging is done via a USB-C connector, which supports modern charging standards. However, the input is limited to 10 watts, resulting in a full recharge time of around three hours. While this may be slower compared to some alternatives, it is not a significant drawback given the device's overall performance and reliability.
Storage and Additional Accessories
The GB40 comes with detachable clips and a neat storage bag, making it easy to keep organized in a vehicle's glove compartment or boot. Its compact design ensures it does not take up excessive space, while the durable build quality promises long-term durability even with regular use.
Performance in Real-World Testing
In practical tests, the NOCO Boost GB40 has proven effective on various vehicles, including those with hefty diesel engines like motorhomes. Its consistent performance and ease of use make it a reliable tool for both personal emergencies and assisting other stranded motorists.
Overall, the NOCO Boost GB40 is a solid investment for anyone seeking a dependable portable jump starter. Its combination of compact size, powerful cranking ability, and user-friendly features justifies its premium price point, especially when purchased through deals like those available on Amazon.



