NOCO

NOCO Boost Plus GB40

★★★★½ 4.6/5 (4 customer reviews)
Overall Score4.6/5.0
Expert Verdict

The NOCO Boost Plus GB40 is a versatile and dependable jump starter that combines safety, power, and convenience in a compact package. It is highly recommended for drivers seeking a reliable roadside emergency tool that also doubles as a power bank and flashlight. While it may not suit very large diesel engines, it excels for most everyday automotive needs.

Key Features

  • 1000-amp peak current capable of jump-starting up to 6L gasoline and 3L diesel engines
  • Spark-proof technology and reverse polarity protection for safe use
  • Built-in USB port for charging smartphones, tablets, and other devices
  • Ultra-bright LED flashlight with multiple modes including SOS and emergency strobe
  • Compact, lightweight, and water-resistant design for durability and portability
✓ Pros
  • Reliable jump-starting power for a variety of vehicle types
  • Safety features minimize risk of incorrect use
  • Multi-functional with power bank and flashlight capabilities
  • Long battery life with up to one year of charge retention
✗ Cons
  • May require recharging after multiple jump starts in quick succession
  • Limited jump-start capacity for larger diesel engines beyond 3 liters
  • USB charging port outputs at standard rates, not fast charging

Full Review

The NOCO Boost Plus GB40 is a compact, high-performance lithium-ion jump starter designed to quickly and safely start dead car batteries without the need for another vehicle. With a powerful 1000-amp peak current, it can jump-start gasoline engines up to 6 liters and diesel engines up to 3 liters, making it suitable for a wide range of vehicles including cars, motorcycles, boats, and trucks. Its robust design also features spark-proof technology and reverse polarity protection to ensure user safety during operation.

Beyond jump-starting capabilities, the GB40 doubles as a versatile power bank with a built-in USB port for charging smartphones, tablets, and other electronic devices on the go. It also includes a bright ultra-bright LED flashlight with multiple modes such as SOS and emergency strobe, making it an essential tool for roadside emergencies and outdoor adventures. The device is lightweight and compact, easily fitting in glove compartments or toolboxes, ensuring it's always ready when needed.

Durability and reliability are key aspects of the NOCO Boost Plus GB40. Its rugged housing is water-resistant and designed to withstand tough conditions, while the battery maintains a charge for up to a year, providing peace of mind for infrequent use. Additionally, the intuitive LED indicators provide clear battery status and charging alerts, making operation straightforward for users of all experience levels.

Customer Reviews

Jessica M. March 2025
★★★★★
Lifesaver on the Road
This jump starter was a literal lifesaver during a winter roadside emergency. It fired up my car on the first try, and the flashlight was really bright for signaling. I also love the compact size—it fits perfectly in my glove box.
David K. January 2025
★★★★☆
Great for Cars and Phones
I bought this to keep in my truck and it’s worked flawlessly. The USB charging port is handy for my phone, and the jump starter works as promised. I docked one star because the USB charging isn’t very fast.
Maria L. February 2025
★★★★★
Compact and Powerful
Very impressed with the power packed into such a small device. It safely jump-started my boat engine and also served as a flashlight during a camping trip. Definitely recommend it for anyone needing a reliable emergency tool.
Ethan R. December 2024
★★★★☆
Good, But Keep It Charged
The GB40 jump starter does a great job and has several useful features. Just be sure to recharge it regularly because after a couple of jump starts, the battery drains quickly. Overall, a solid product for emergency preparedness.