Introduction
The NOCO Boost X GBX45 is a portable lithium jump starter designed for 12-volt batteries in vehicles with up to 6.5-liter gasoline and 4.0-liter diesel engines. This includes cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, and tractors. Featuring 1250-amps of extreme jump starting power, the GBX45 incorporates UltraSafe 2.0 safety technology, providing spark-proof connections and reverse polarity protection. It also includes 60W USB-C Power Delivery for ultra-fast recharging and powering various USB-C devices. This manual provides essential information for safe and effective use of your GBX45.
Consignes de sécurité
Always 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 serious injury, death, or property damage.
- Sécurité des batteries : The internal lithium-ion battery is designed for safe operation. Do not attempt to replace the battery. Do not expose the unit to fire or extreme heat.
- Environnement d'exploitation : Use the product in well-ventilated areas. Do not operate in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Technologie anti-étincelles : While designed to be spark-proof, always ensure proper connection to battery terminals. Avoid touching positive and negative clamps ensemble.
- Enfants: Tenir hors de portée des enfants. Ce n'est pas un jouet.
- Dispositifs médicaux : Consult your physician before use if you have a medical device, such as a pacemaker.
- Avertissement concernant la Proposition 65 : Ce produit contient des produits chimiques reconnus par l’État de Californie comme pouvant provoquer le cancer, des malformations congénitales ou d’autres troubles de la reproduction.
Qu'y a-t-il dans la boîte

Image: All components included with the NOCO Boost X GBX45 jump starter.
Your NOCO Boost X GBX45 package includes the following items:
- GBX45 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack
- Heavy-Duty Jumper Cable Clamps (23 inches)
- Câble de chargement USB-C (24 pouces)
- Sac de rangement en microfibre
- Manuel de l'utilisateur (ce document)
- Informations sur la garantie de 1 ans
Fonctionnalités terminéesview

Image: The NOCO Boost X GBX45 unit with its attached heavy-duty clamps.
The GBX45 is engineered with advanced features for reliable and safe jump starting:
- Extreme Jump Starting Power: Rated at 1250-amps, capable of starting vehicles with up to 6.5L gas and 4.0L diesel engines.
- Technologie UltraSafe 2.0 : Features spark-proof connections and reverse polarity protection for safe operation. Enhanced thermal efficiency and power management ensure better performance and longer battery life.
- Alimentation USB-C (60 W) : Allows for ultra-fast recharging of the unit and powers various USB-C devices like phones, tablets, and laptops.
- Recharge rapide : Can go from 0% to jump starting in just 5 minutes of charge, with a full recharge in approximately 48 minutes using a compatible 60W charger.
- Lampe torche LED intégrée : A 100-lumen LED flashlight with multiple modes, including SOS and strobe, for emergency situations.
- Banque d'alimentation portable : Provides 10W USB-A output and 60W USB-C input/output for charging external devices.
Configuration et chargement
Charge initiale
It is recommended to fully charge the GBX45 before first use. The unit comes partially charged from the factory. Use the included USB-C charging cable and a compatible USB-C power adapter (not included) to charge the unit. For fastest charging, a 60W USB-C Power Delivery adapter is recommended.

Image: Visual representation of the GBX45's fast charging feature, indicating 0% to boost in 5 minutes and full charge in 48 minutes.
- Connect the small end of the USB-C cable to the USB-C IN/OUT port on the GBX45.
- Connect the large end of the USB-C cable to a USB-C power adapter.
- Branchez l’adaptateur secteur sur une prise murale.
- The charge LEDs on the GBX45 will illuminate, indicating the charging progress. All five charge LEDs will be solid white when fully charged.
Indicateur de niveau de batterie
The charge LEDs indicate the internal battery charge level:
- 1 DEL : 0-25 %
- 2 LED : 25-50 %
- 3 LED : 50-75 %
- 4 LED : 75-100 %
- 5 LEDs: 100% (Fully Charged)
Instructions d'utilisation : Démarrage d'un véhicule à l'aide de câbles de démarrage
Suivez attentivement ces étapes pour démarrer votre véhicule à l'aide de câbles :

Image: The NOCO Boost X GBX45 connected to a vehicle battery, demonstrating its ability to start dead batteries.
- Connecter Clamps: Connect the heavy-duty battery clamps to the GBX45. Ensure a secure connection.
- Se connecter à la batterie :
- Connectez le ROUGE positif (+) clamp à la borne positive de la batterie.
- Connectez le NOIR négatif (-) clamp to the negative battery terminal or a chassis ground point.
The GBX45 features UltraSafe 2.0 technology with spark-proof and reverse polarity protection. If connected incorrectly, the Error LED will illuminate.
- Mise sous tension : Press the Power Button on the GBX45. The Power LED will illuminate white. The Boost LED will also illuminate white, indicating it's ready to boost.
- Démarrer le véhicule : Attempt to start your vehicle. Most vehicles will start immediately. If the vehicle does not start, wait 30 seconds and try again. Do not attempt more than five (5) consecutive jump starts within a fifteen (15) minute period.
- Déconnecter: Once the vehicle starts, disconnect the battery clamps en ordre inverse (négatif d'abord, puis positif).
Fonction de remplacement manuel
The GBX45 has a manual override feature for extremely dead batteries where the unit may not detect the battery. Use this feature with extreme caution as safety features are disabled.
- Assurez-vous que clamps sont correctement connectés à la batterie.
- Press and hold the Manual Override Button for three (3) seconds. The Boost LED will flash white.
- Essayez de démarrer le véhicule.
- Déconnecter clamps immediately after starting.
Recharge d'appareils externes (fonction batterie externe)
The GBX45 can also function as a portable power bank to charge your USB devices.

Image: The GBX45 unit connected to and charging multiple electronic devices, highlighting its power bank capabilities.
- USB-A Output (10W): Connect your USB-A charging cable to the USB OUT port on the GBX45 and to your device.
- USB-C Input/Output (60W): Connect your USB-C charging cable to the USB-C IN/OUT port on the GBX45 and to your device. This port supports faster charging for compatible devices.
The GBX45 will automatically detect and begin charging your connected device. The charge LEDs will indicate the remaining battery level of the GBX45.
Entretien et stockage
- Chargement : For optimal battery life, fully charge the GBX45 every 2-3 months, even if not in use.
- Nettoyage: Nettoyez l'appareil avec un chiffon doux et sec. N'utilisez pas de produits chimiques agressifs ni de matériaux abrasifs.
- Stockage: Store the unit in a cool, dry place, away from direct sunlight and extreme temperatures. Use the included microfiber storage bag to protect the unit.
- Clamp Soins: Gardez la batterie propreamppropre et exempt de corrosion.
Dépannage
| Problème | Cause possible | Solution |
|---|---|---|
| L'unité ne s'allume pas. | La batterie est complètement déchargée. | Charge the unit using the USB-C cable. |
| Boost LED does not illuminate. | Clamps not connected properly; battery voltage trop bas. | Assurez-vous que clamps are securely connected. Use Manual Override if battery is extremely dead. |
| Error LED blinks (Reverse Polarity). | Clamps sont connectés en sens inverse. | Déconnecter clamps and reconnect positive to positive, negative to negative. |
| Error LED blinks (Hot/Cold). | Unit is too hot or too cold. | Allow unit to return to operating temperature (-4°F to +122°F / -20°C to +50°C). |
| Vehicle does not start after multiple attempts. | Vehicle battery severely damaged; other vehicle issues. | Consult a professional mechanic. The GBX45 may not be able to start a battery with internal damage. |
Caractéristiques
| Spécification | Détail |
|---|---|
| Modèle | GBX45 |
| Culminer Amprage | 1250 Amps |
| Vol batterietage | 12V |
| Compatibilité moteur (essence) | Jusqu'à 6.5 litres |
| Compatibilité moteur (diesel) | Jusqu'à 4.0 litres |
| Batterie interne | Lithium-ion |
| Entrée/sortie USB-C | Puissance délivrée de 60 W |
| Sortie USB-A | 10 W |
| Lampe de poche à LED | 100 Lumens (Multiple Modes) |
| Température de fonctionnement | -4°F à +122°F (-20°C à +50°C) |
| Dimensions (L x l x H) | 8.23" x 4.96" x 3.62" |
| Poids | 2.64 livres (1.2 kilogramme) |
| Longueur du câble | 23 Inches (Jumper Cables) |
Garantie et assistance
The NOCO Boost X GBX45 comes with a Garantie limitée de 1 ans from the date of purchase. This warranty covers defects in material and workmanship under normal use. For full warranty terms and conditions, please refer to the official NOCO website ou la carte de garantie incluse dans l'emballage de votre produit.
For technical support, troubleshooting assistance, or warranty claims, please contact NOCO Customer Service. You can find contact information and additional resources on the official NOCO website: no.co/support
You can also visit the official NOCO Store on Amazon for more products and information: NOCO Amazon Store





