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GB40 geniusBOOST+ | Lithium Jump Starter


Safely jump-start a dead battery in seconds with the NOCO GB40 geniusBOOST+ 1000A Lithium Jump Starter.

GB40 Booster Pack Jump Starter

This powerful battery booster pack is designed for jump starting cars, boats, RVs, trucks and other applications with gas engines up to 6 liters, and diesel engines up to 3 liters. It also doubles as a portable power source for recharging USB devices, such as smartphones, tablets, bluetooth headphones and speakers, GoPros, and more!


  • Reverse polarity protection
  • 100% Spark-proof
  • Can jump start a 6.0L engine (3.0L diesel) up to 20X on a single charge
  • Dual ultra-bright LEDs
  • 7 light modes including flashlight and emergency strobe
  • USB port – 2.1A USB Out and 2.1A Micro USB In
  • Charge smartphones, tablets, GPS and more.
  • Compact design – fits perfectly in the glovebox or other storage areas in your vehicle
  • Rechargeable – keep Boost charged from any powered USB port, like a laptop or phone charger.
  • Easy to use – design is extremely intuitive
  • Includes: GB40 Jump Starter, Micro USB Cable, HD Battery Clamps, 12V Car Charger, Microfiber Storage Bag, User Guide & Warranty.



Part # GB40
Internal Battery
Lithium Ion
Peak Current Rating
Operating Temp.
-30°C (-22°F) to +50°C (122°F)
Micro USB (Input)
5V, 2.1 Amps
USB (Output)
5V, 2.1 Amps
Housing Protection IP65 (with ports closed)
2.4 lbs.
LxWxH (in.)
6.7 x 3.2 x 1.7


View / Download GB40 Spec Sheet