Features

UltraSafe Lithium Jump Starter: The Noco Boost Plus GB40 is a portable lithium-ion battery jump starter pack that delivers 1,000-amps (7,000 J3S) for jump starting a dead battery in seconds. The Boost Plus GB40 powerful lithium jump starter is capable of jump starting up to 20 vehicles on a single charge. It's rated for over 1,000 charge cycles and holds its charge level for over a year with minimal power loss. Its designed for a car, boat, RV, truck and more with gas engines up to 6 liters, and diesel engines up to 3 liters.

• 12V Lead-Acid Battery Compatible: The GB40 is designed to jump start 12-volt lead-acid batteries down to 2-volts. If your battery is below 2-volts, the Boost LED will be "Off". This is an indication that the GB40 can not detect a battery. If you need to jump start a battery below 2-volts there is a Manual Override feature, which allows you to force "On" the jump start function.
• Spark-Proof Connection & Reverse Polarity Protection: It features a patented safety technology that provides spark-proof connections and reverse polarity protection making it safe and easy for anyone to use.

Simple User Interface: Noco designed the GB40's user interface to be simple and easy to understand. LED status indicators display the internal lithium battery's charge level and charging status. Error indicators show when connected in reverse polarity or temporarily disabled for thermal protection. Or simply turn on the LED flashlight, recharge a USB device, or use manual override for deeply discharged batteries.

Heavy-Duty Battery Clamps: The included heavy-duty battery clamps span 23" in length, and capable of reaching most battery posts or chassis ground. It features a high-temperature silicone wire insulation that remains extremely flexible down to 0°F and withstands high levels of duress and even prolonged exposure to high temperatures.

100-Lumen Dual LED Flashlight: The GB40 feature's a built-in rechargeable, lithium-powered LED flashlight with seven light modes - 100%, 50%, 10%, SOS, Blink, Strobe, & Off. With multiple luminosity settings, it's immediately adaptable to a variety of situations. Use it's powerful flashlight will help you see your engine, changing a tire at night or even warn oncoming traffic when disabled and needing of roadside assistance.

Built-in 2.1A USB Output: The built-in 5V/2.1A USB-A port can power and charge your USB devices - such as smartphones, GoPro cameras, wireless headphones, and more. Devices that are used frequently, like phones and cameras, often require more power to run all day than the device's battery is rated for. The GB40's battery pack extends the life and running time of your device. Plus, powering your device from an external battery pack will reduce the internal battery's charge cycles, extending the usable life.

USB Charging Input: Recharge the GB40 using its USB-C input, the included cable (USB-C on both ends) and a device with a powered USB port - AC adapter, computer/laptop, etc. (not included). The time to recharge the GB40 will vary based on the discharge level and the power source used (actual results may vary due to battery conditions).

Charge LEDs: The GB40 has four Charge LEDs - 25%, 50%, 75% and 100%. These Charge LEDs indicate the internal battery's state-of-charge (SOC).

• The 25% Charge LED will pulse while charging and will be solid Red when the internal battery is 25% charged.
• The 50% Charge LED will pulse while charging and will be solid Red when the internal battery is 50% charged.
• The 75% Charge LED will pulse while charging and will be solid Yellow when the internal battery is 75% charged.
• The 100% Charge LED will pulse while charging and will be solid Green when the internal battery is fully charged.

Rugged Compact Design: This compact, pocket-sized lithium jump starter is IP65 rated (with ports closed) to protect it against water, shock, dirt, and dust. It's 8X smaller and lighter than traditional battery booster packs and conveniently stores in a glove compartment, center console, trunk, or toolbox.

Protection Circuitry: The GB40 will display an Error Condition when a reverse polarity condition is present, a battery below 2 volts, or the internal battery overheating. The Error LED will be solid Red when polarity is reversed or will blink Red when the internal battery is too hot. The Boost Light will not come on if the connected battery is below 2 volts.

Auto Shut Off: The GB40 has a built in energy saving feature that will automatically turn the unit off after 7 hours. To continue using, simply power on the unit again.