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NOCO Genius Boost X GBX155 - User Manual

NOCO Genius Boost X GBX155
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User Guide & Warranty
DANGER
READ AND UNDERSTAND ALL SAFETY INFORMATION BEFORE USING THIS PRODUCT. Failure to
follow these safety instructions may result in ELECTRICAL SHOCK, EXPLOSION, FIRE, which
may result in a SERIOUS INJURY, DEATH, or PROPERTY DAMAGE.
Electrical Shock. Product is an electrical device that can shock and cause serious injury. Do not cut
power cords. Do not submerge in water or get wet.
Explosion. Unmonitored, incompatible, or damaged batteries can explode if used with product. Do not
leave product unattended while in use. Do not attempt to jump start a damaged or frozen battery. Use
product only with batteries of recommended voltage. Operate product in well ventilated areas.
Fire. Product is an electrical device that emits heat and is capable of causing burns. Do not cover
product. Do not smoke or use any source of electrical spark or fire when operating product. Keep
product away from combustible materials.
Eye Injury. Wear eye protection when operating product. Batteries can explode and cause flying debris.
Battery acid can cause eye and skin irritation. In the case of contamination of eyes or skin, flush aected
area with running clean water and contact poison control immediately.
Explosive Gases. Working in the vicinity of a lead-acid is dangerous. Batteries generate explosive
gases during normal battery operation. To reduce risk of battery explosion, follow all safety information
instructions and those published by the battery manufacturer and manufacturer of any equipment
intended to be used in the vicinity of battery. Review precautionary markings on these products and on
engine.
For more information and
support visit:

Questions and Answers

  • C
    Curtis RodriguezJul 28, 2025
    How to fix a solid red light on my NOCO Genius Remote Starter?
    • T
      Tracy RodriguezJul 28, 2025
      If your NOCO Genius Remote Starter shows a solid red light, it indicates reverse polarity has been detected. To fix this, reverse the battery connections.
  • K
    Karen NelsonAug 1, 2025
    What to do if the Hot LED is flashing on my NOCO Genius Boost X GBX155 Remote Starter?
    • M
      Melinda BrooksAug 1, 2025
      If the Hot LED on your NOCO Genius Remote Starter is flashing, it means the unit is too hot to jump-start a vehicle. In this state, only the flashlight function is available. To resolve this, allow the unit to cool down.
  • S
    Sheryl HarrellAug 5, 2025
    Why is the Hot LED solid on my NOCO Genius Boost X GBX155 Remote Starter?
    • J
      jcooperAug 5, 2025
      If the Hot LED on your NOCO Genius Remote Starter is solid, it indicates that the unit is fully operational but is approaching its upper temperature limit. To prevent overheating, allow the unit to cool down.
  • L
    Lauren MartinezAug 9, 2025
    What to do if the Cold LED is flashing on my NOCO Genius Boost X GBX155?
    • J
      Joseph SmithAug 9, 2025
      If the Cold LED is flashing on your NOCO Genius Remote Starter, it means the unit is too cold to jump-start a vehicle and only the flashlight is available. To resolve this, allow the unit to warm up.
  • R
    Roberto MillerAug 14, 2025
    Why is the Cold LED solid on my NOCO Genius Remote Starter?
    • T
      travisthompsonAug 14, 2025
      If the Cold LED on your NOCO Genius Remote Starter is solid, it means the unit is fully operational but is approaching its lower temperature limit. To resolve this, allow the unit to warm up.
  • A
    Amy HowardAug 18, 2025
    What to do if my NOCO Genius Remote Starter is flashing red then solid red?
    • J
      Joel WilliamsAug 18, 2025
      If your NOCO Genius Remote Starter is flashing red and then shows a solid red light, it could be due to several reasons: * If charging the unit, the cable or charger may be damaged. * If charging a USB-C device, the cable or device may be damaged. * The connected charger may be incompatible. Unplug the USB cable, turn the unit off and on, and use a different charger.
  • T
    Timothy SchultzAug 22, 2025
    Why is my NOCO Genius Boost X GBX155 Remote Starter flashing a different number of times?
    • J
      Jeremy ArmstrongAug 22, 2025
      If your NOCO Genius Remote Starter is showing single, double, triple, quadruple, or sextuple flashes, it indicates several potential issues: * A short circuit has been detected on the battery clamps. Remove all loads and reconnect the clamps to the battery. * High voltage has been detected at the clamps (the GBX155 is connected to a voltage system greater than 12V, such as 24V). * A bad battery cell has been detected. * A charge timeout error has occurred (i.e., the GBX155 has been in bulk charge for too long). * Back-charge has been detected into the GBX155 through the clamps while in Boost Mode (i.e., the GBX155 is in Manual Override and then connected to a system greater than 12V, such as 24V).

Summary

Safety Warnings

Electrical Shock Hazard

Product is an electrical device that can shock and cause serious injury. Do not cut power cords or submerge in water.

Explosion Hazard

Unmonitored, incompatible, or damaged batteries can explode. Do not attempt to jump start damaged or frozen batteries.

Fire Hazard

Product emits heat and can cause burns. Do not cover product, smoke, or use sparks near it.

Eye Injury Risk

Wear eye protection. Batteries can explode causing flying debris and acid irritation.

Explosive Gases Warning

Batteries generate explosive gases. Follow safety information and battery manufacturer instructions.

Important Safety Precautions

Operational Guidelines

How To Use: Charging

How To Use: Connection and Jump Start

Advanced Jump Start Modes

Troubleshooting Guide

Troubleshooting Errors and Solutions

Covers common errors like reverse polarity, short circuits, and temperature issues.

NOCO Genius Boost X GBX155 Specifications

General IconGeneral
BrandNOCO Genius
ModelBoost X GBX155
CategoryRemote Starter
LanguageEnglish

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