GB40 How To

GB40

HOW TO USE.

Videos

How to jump start using your NOCO Boost GB40

Learn how to jump start using your NOCO Boost GB40 UltraSafe Lithium Jump Starter in three simple steps.
The GB40 is a portable lithium-ion battery jump starter booster pack that delivers 1,000-amps for jump starting a car, boat, trucks and more.
Learn how to use manual override on your NOCO Boost GB40 UltraSafe Lithium Jump Starter to begin jump starting a dead battery below 2-volts.
Learn how to charge a phone or other USB devices using NOCO Boost.

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GB40

HOW TO JUMP START.

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ATTACH CLAMPS.

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POWER ON.

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START VEHICLE.

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POWER OFF.

Or power off/on to reset.

Boost

FAQ





GB40

LEDs

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Power LED

Illuminates White when unit is "on".

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Error LED

Illuminates Red if reverse polarity is detected. Blinks “on” and “off” when internal battery temperature is too high.

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Charge LEDs

Indicates the charge level of the internal battery.

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Boost LED

Illuminates White when Boost is active. LED flashes White when Manual Overide feature is active.

GB40

Buttons

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Power Button

Push to turn unit "on" and "off".

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Light Mode

Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off

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Manual Override

To enable, push and hold for three (3) seconds. WARNING: Disables safety protection and manually forces Boost "On". Only for use when a battery is too low to be detected.

Boost

TROUBLESHOOTING.

ERROR

REASON / SOLUTIONS

Error LED: Solid Red

Error LED: Solid Red

Reverse polarity/Reverse the battery connections.

Error LED: Blinking Red w/Cables Connected Properly

The internal battery is too hot/ Allow the unit to cool. Bring the unit into cooler environment.

Boost Light Does Not Come On w/Cables Connected Properly

Connected battery is below 2-volts/ Remove all loads, and try again, or use Manual Override Mode.

GB40 Manual Override

GB40

MANUAL OVERRIDE

PUSH AND HOLD FOR 3 SECONDS.

WARNING: Disables safety protection and manually forces Boost “On”. Only for use when a battery voltage is too low to be detected.

Connect, Charge, and Store.

GB40 Accessories

The GB40 is compatible with an array of NOCO accessories. Connect to your battery by mounting the GBC007 eyelets, or charge more quickly with the NUSB211NA charging adapter. Store and protect your GB40 with the GBC013.

GET SUPPORT.

Didn’t find the answers you were looking for, or have other questions regarding your product? Contact NOCO customer support.

CHAT WITH SUPPORT