Introduction
The NOCO Boost GB20 is a compact, yet powerful 500-amp lithium jump starter designed to safely jump start a dead car battery in seconds. This portable car battery jump starter delivers up to 20 jump starts on a single charge and is rated for gasoline engines up to 4.0 liters. It is engineered with UltraSafe Technology, featuring spark-proof connections and reverse polarity protection, ensuring safe and mistake-proof operation for any 12-volt vehicle. The GB20 also functions as a portable USB-C power bank for charging smartphones, tablets, and other devices, and includes an integrated 100-lumen LED flashlight with seven light modes, including SOS and emergency strobe. Its rugged design, IP65-rated enclosure, and rubberized over-molded casing make it durable against water, dust, drops, and rough handling.
Image: The NOCO Boost GB20 unit with its red and black heavy-duty clamps.
Video: An overview of the NOCO Boost product line, highlighting its features and applications. This video is provided by the Seller.
Safety Information
WARNING:
- Always read and understand the user manual before operating the device.
- Do not submerge the unit in water.
- Do not operate the unit if it has been damaged.
- Keep out of reach of children.
- Ensure proper ventilation during use and charging.
- Do not jump start a frozen battery.
- Do not connect the positive and negative clamps together.
- Use only the included accessories and cables.
The GB20 features UltraSafe Technology with spark-proof connections and reverse polarity protection to prevent errors during operation. However, always follow safety guidelines.
Image: Close-up of the spark-proof clamps, highlighting the UltraSafe technology.
What's in the Box
- GB20 Portable Car Battery Jump Starter Pack
- Heavy-Duty Clamps
- USB-C Charging Cable
- Microfiber Storage Bag
- User Guide for Jump Starter
- 1-Year Limited Warranty Information
Image: All items included in the NOCO Boost GB20 package: the jump starter, clamps, USB-C cable, and storage bag.
Product Features and Overview
Familiarize yourself with the various components and indicators of your NOCO Boost GB20.
Image: Labeled diagram showing the Error LED, Power Button, Power LED, Charge LEDs, Boost LED, Manual Override Button, Light Mode Button, USB Out, and USB-C In ports.
LED Indicators:
- Power LED: Illuminates white when the unit is ON.
- Error LED: Blinks "on" and "off" in various sequences (from 1 to 6 blinks) to convey error conditions.
- Charge LEDs: Indicate the charge level of the internal battery.
- Boost LED: Illuminates white when Boost is active. The LED flashes white when the manual override feature is active.
Image: Detailed view of the GB20's LED indicators and their functions.
Setup
Initial Charging
Before first use, fully charge the GB20. Connect the included USB-C charging cable to the GB20's USB-C IN port and plug the other end into a USB wall adapter (not included) or a powered USB port. The Charge LEDs will illuminate to indicate charging status. All four Charge LEDs will be solid when fully charged.
The GB20 recharges in approximately 3 hours.
Image: The NOCO Boost GB20 connected via USB-C to charge a smartphone, demonstrating its power bank capability.
Connecting Clamps
Ensure the GB20 is turned OFF before connecting the clamps to the unit. The heavy-duty clamps connect to the 12V OUT port on the GB20. Ensure a secure connection.
Operating Instructions
Jump Starting a Vehicle
- Attach Clamps: Connect the red (positive) clamp to the positive (+) battery terminal and the black (negative) clamp to the negative (-) battery terminal or a chassis ground point.
- Power On: Press the Power Button on the GB20. The Power LED will illuminate white.
- Start Vehicle: Attempt to start your vehicle. If the vehicle does not start, wait 30 seconds and try again.
- Power Off: Once the vehicle starts, disconnect the clamps from the battery, then turn off the GB20.
If the battery is completely dead and the GB20 does not detect it, you may need to use the Manual Override feature. Press and hold the Manual Override Button for three seconds until the Boost LED flashes white. This mode bypasses safety checks and provides maximum power. Use with extreme caution.
Image: Visual steps for attaching clamps, powering on, starting the vehicle, and detaching the unit.
Using as a Portable Power Bank
The GB20 features a USB-A OUT port (2.1A) for charging smartphones, tablets, and other USB-powered devices. Simply connect your device's USB charging cable to the GB20's USB-A OUT port.
Using the LED Flashlight
The integrated 100-lumen LED flashlight has seven light modes:
- 100% Brightness
- 50% Brightness
- 10% Brightness
- SOS
- Blink
- Strobe
- Off
Press the Light Mode Button to cycle through the different modes. This feature is ideal for night use, roadside visibility, or emergencies.
Image: The GB20's integrated LED flashlight in operation, highlighting its tactical grade and various light modes.
Maintenance
Charging
For optimal performance and longevity, keep the GB20 charged. It is recommended to recharge the unit after each use and at least every 3-6 months, even if not used, to maintain battery health.
Storage
Store the GB20 in its microfiber storage bag in a cool, dry place. Avoid extreme temperatures and direct sunlight. Ensure the unit is fully charged before long-term storage.
Cleaning
Clean the unit with a soft, damp cloth. Do not use harsh chemicals or abrasive materials. Keep the ports free from dust and debris.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on. | Battery is completely discharged. | Charge the unit fully. |
| Vehicle does not start. | Battery is too dead to be detected; clamps are not properly connected. | Ensure clamps are securely connected. Use Manual Override if necessary. |
| Error LED is blinking. | Reverse polarity, short circuit, or other error condition. | Refer to the Error LED sequence in the full user guide for specific error codes. Disconnect and reconnect clamps correctly. |
| Flashlight turns on accidentally. | Light Mode Button pressed during storage. | Store the unit in its microfiber bag to prevent accidental button presses. |
Specifications
| Specification | Value |
|---|---|
| Brand | NOCO |
| Model | GB20 |
| Peak Output Current | 500 Amps |
| Product Dimensions | 4.61"D x 8.19"W x 4.21"H |
| Item Weight | 1 Pounds |
| Engine Rating (Gas) | Up to 4.0L |
| Battery Type | Lithium Metal |
| Flashlight Output | 100 Lumens LED |
| USB-A Output | 2.1A |
| USB-C Input | 10W |
| Water Resistance | IP65-rated enclosure |
Warranty & Support
The NOCO Boost GB20 comes with a 1-Year Limited Warranty from the date of purchase. This warranty covers defects in material and workmanship under normal use. For warranty claims or technical support, please visit the official NOCO website or contact their customer service.
For more information and support, visit: www.no.co
