GB50 How To

Videos

Overview of the NOCO Boost GB50

All batteries die, where will you be? Introducing the all new GB50 Boost XL 1500A UltraSafe Lithium Jump Starter.
Learn how to jump start using your NOCO Boost GB50 UltraSafe Lithium Jump Starter in three simple steps.
The GB50 is a portable lithium-ion battery jump starter booster pack that delivers 1,500-amps for jump starting a car, boat, trucks and more.
Learn how to use manual override on your NOCO Boost GB50 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.

More Videos

GB50

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





GB50

LEDs

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Power LED

Illuminates White when unit is "on".

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Cold LED

Illuminates solid Blue; approaching lower temperature limit. Flashing Blue; unit is too cold to jump start.

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Hot LED

Illuminates solid Red; approaching upper temperature limit. Flashing Red; unit is too hot to jump start.

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Error LED

Illuminates Red if reverse polarity is detected.

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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.

GB50

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.

GB50 Manual Override S_1

GB50

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.

GB50 Accessories

The GB50 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 GB50 with the GBC017.