The NOCO Boost GB40 is a 1000-amp portable lithium jump starter for 12V vehicle batteries. It weighs 2.4 pounds and fits in a glove compartment or under a car seat. The internal 24 Wh lithium battery delivers up to 20 jump starts on a single charge. The GB40 is rated for gas engines up to 6.0 liters and diesel engines up to 3.0 liters. Plus, a USB-A port lets the unit also work as a power bank for phones, tablets, or any USB-charged device.
easy way to jump your car’s battery in a pinch
The NOCO Boost GB40 ships with heavy-duty clamps, a USB-C charging cable, and a microfiber storage bag. To jump a dead car battery, connect the clamps to the positive and negative terminals, then press the power button. The GB40 handles jump-starting in seconds. UltraSafe technology also includes spark-proof connections and reverse polarity protection. This prevents the common mistakes that can damage your car’s electrical system or cause sparks during connections.
This jump box is small enough to fit in a glove compartment and gives you a self-contained jump starter. You plug it in, connect the clamps, and start the car. The 100-lumen LED flashlight built in also has seven modes, including emergency strobe and SOS, useful for signaling on a dark roadside or working on the battery when it’s dark.
The GB40 also works as a portable USB power bank for your phone, tablet, or any USB-A device. This adds about four full phone charges from the internal battery. Plus, the unit retains 70% of its charge for up to a year in storage, so it stays ready for an emergency even after months in a glove compartment. The IP65 rating handles water, dust, and rough handling for life in a car trunk.
The GB40 works with most consumer vehicles, from cars and motorcycles up through SUVs, light trucks, ATVs, and boats. It’s rated to jump gas engines up to 6.0 liters and diesel ones of up to 3.0 liters,which means it works great with your typical sedan, pickup, motorcycle, or SUV. For larger trucks or commercial diesels, NOCO sells the GB70 and GBX75 with higher amp ratings.
The NOCO Boost GB40 is one of the most popular portable jump starters for cars, motorcycles, boats, and other vehicles, capable of jump-starting engines up to 6.0L gas or 3.0L diesel. At $76 during this sale, the $24 discount off the $100 list price equals a 24% cut. For drivers who want a jump starter in the glove compartment, parents prepping a teenager’s first car, or anyone with a vehicle that stays parked for weeks at a time, the discount brings a portable jump starter into the price range of a few months of a car wash subscription.