Introduction

The NOCO GB20 Battery Jump Starter is a revolutionary portable power bank designed for 12-volt batteries. This compact device is perfect for jump-starting dead batteries in vehicles, boats, and lawn equipment. With an estimated price range of $99.95 to $129.95 and a launch date set for January 2022, the GB20 is an essential tool for every driver.

Technical Specifications

Internal Battery: Lithium Ion
Peak Current Rating: 500A
Operating Temperature: -20°C to +50°C
Charging Temperature: 0ºC to +40ºC
Storage Temperature: -20ºC to +50ºC (Avg Temp.)
Micro USB (Input): 5V, 2.1A
USB (Output): 5V, 2.1A
Housing Protection: IP65 (w/Ports Closed)
Cooling: Natural Convection
Dimensions (L x W x H): 6.7 x 3.2 x 1.7
Inches Weight: 2.4 Pounds

How To Use

Charge NOCO GB20 Battery Jump Starter

The GB20 comes partially charged out of the box and needs to be fully charged before use. Connect the GB20 using the included USB Charge Cable to the USB IN port and the USB car charger. It can also be recharged from any USB-powered port, like an AC adapter, car charger, laptop, and more. The USB IN port is rated at 2.1 Amps to ensure safe and efficient charging of the internal lithium battery. Due to FCC regulations, we recommend not to charge and discharge the unit at the same time. The time to recharge a GB20 will differ based on the discharge level and the power source used. Actual results may vary due to battery conditions.

Charger Rating	.5A	1A	2A
Recharge Time	12h	6h	3h

When recharging, the charge level of the internal battery is indicated by the Charge LEDs. The LEDs will slowly pulse 'On' and 'Off' and become solid until all four Charge LEDs are on. When the battery is fully charged, the Green 100% LED will be solid, and the 25%, 50%, and 75% Charge LEDs will turn "Off". From time to time, the Green 100% LED will pulse indicating maintenance charging is occurring.

Connect to the Battery

Carefully read and understand the vehicle owner's manual on speciﬁc precautions and recommended methods for jump-starting the vehicle. Make sure to determine the voltage and chemistry of the battery by referring to your battery owner's manual before using this product. The GB20 is for jump-starting 12-volt lead-acid batteries only. Before connecting to the battery, verify that you have a 12-volt lead-acid battery. The GB20 is not suitable for any other type of battery. Identify the correct polarity of the battery terminals on the battery. The positive battery terminal is typically marked by these letters or symbols (POS,P,+). The negative battery terminal is typically marked by these letters or symbol (NEG,N,-). Do not make any connections to the carburetor, fuel lines, or thin, sheet metal parts. The below instructions are for a negative ground system (most common). If your vehicle is a positive ground system (very uncommon), follow the below instructions in reverse order.

Connect the battery clamps to the GB20 by connecting to the 12V OUT port.
Connect the positive (red) HD battery clamp to the positive (POS,P,+) battery terminal.
Connect the negative (black) HD battery clamp to the negative (NEG,N,-) battery terminal or vehicle chassis.
When disconnecting, disconnect in the reverse sequence, removing the negative ﬁrst (or positive ﬁrst for positive ground systems).

JNOCO GB20 Battery Jump Starting

Make sure all of the vehicle's power loads (headlights, radio, air conditioning, etc.) are turned off before attempting to jump start the vehicle.
Press the Power Button to begin jump starting. All LEDs will ﬂash, indicating that all LEDs are properly functioning. If you are properly connected to the battery, the White Boost LED will illuminate. If the battery clamps are connected in reverse, the Red Error LED will illuminate. Reverse the connections to clear this error and then the White Boost LED will illuminate. The White Boost LED is illuminated, when the GB20 is ready to jump start your vehicle.
Try starting the vehicle. Most vehicles will immediately start. Some vehicles may require the GB20 to be connected for up to 30 seconds before starting. If the vehicle does not start right away, wait 20-30 seconds and try again. Do not attempt more than ﬁve (5) consecutive jump starts within a ﬁfteen (15) minute period. Allow the GB20 to rest for ﬁfteen (15) minutes before attempting to jump start the vehicle again.
Once you have started your vehicle, disconnect the battery clamps, and remove the GB20.

Low Voltage Batteries & Manual Override
The GB20 is designed to jump start 12-volt lead-acid batteries down to 2-volts. If your battery is below 2-volts, the Boost LED will be "Off". This is an indication that the GB20 can not detect a battery. If you need to jump start a battery below 2-volts there is a Manual Override feature, which allows you to force "On" the jump start function.
CAUTION: USE THIS MODE WITH EXTREME CARE. THIS MODE IS FOR 12-VOLT LEAD-ACID BATTERIES ONLY. BOTH THE SPARK PROOF AND REVERSE POLARITY PROTECTION FEATURES ARE DISABLED. PAY VERY CLOSE ATTENTION TO THE POLARITY OF THE BATTERY BEFORE USING THIS MODE. DO NOT ALLOW THE POSITIVE AND NEGATIVE BATTERY CLAMPS TO TOUCH OR CONNECT TO EACH OTHER AS THE PRODUCT WILL GENERATE SPARKS. THIS MODE USES VERY HIGH CURRENT (UP TO 500 AMPS) THAT CAN CAUSE SPARKS AND High Heat IF NOT USED PROPERLY. IF YOU ARE UNSURE ABOUT USING THIS MODE, DO NOT ATTEMPT AND SEEK PROFESSIONAL HELP.

INTERFERENCE

Internal Battery Level Indicates the charge level of the internal battery.
Error LED Illuminates Red if reverse polarity is detected, or blinks “On” and “Off” when the internal battery temperature is too high.
Power Button Push to turn unit "On" & “Off”
Power LED Illuminates White when unit is "On".
Boost LED Illuminates White when Boost is active. If the unit is connected properly to a battery, the GB20 will automatically detect a battery and go into Boost mode (LED ﬂashes White when Manual Overide feature is active).
Manual Override Button 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.
Light Mode Button Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10% SOS > Blink > Strobe > Off

Detailed Specifications

Rated Power: 200 starting amps, 1,000 peak amps
Battery Type: Lithium-ion (10,000mAh capacity)
Operating Temperature: -4°F to 104°F (-20°C to 40°C)
Input: USB-C (5V, 2.1A) or 12V (10A) charging
Output: 12V (10A), USB-A (5V, 2.1A), and USB-C (5V, 2.1A)
Safety Features: Spark-proof technology, reverse polarity protection, and over-current protection
Size: 6.6 x 3.2 x 1.4 inches (16.8 x 8.1 x 3.6 cm)
Weight: 1.1 pounds (0.5 kg)

Description

The NOCO GB20 Battery Jump Starter is a compact, yet powerful device that provides a quick and safe solution for jump-starting dead batteries. Its lithium-ion battery boasts a 10,000mAh capacity, delivering 200 starting amps and 1,000 peak amps. The GB20 is equipped with multiple safety features, including spark-proof technology, reverse polarity protection, and over-current protection. This device also offers versatile charging options, with both USB-C and 12V inputs, and various outputs for charging other devices.

NOCO GB20 Battery Jump Starter Setup Guide

Ensure the GB20 is fully charged before use.
Connect the jumper cables to the GB20's clamp connectors.
Attach the red clamp to the positive (+) terminal of the battery and the black clamp to a metal ground point or negative (-) terminal.
Turn on the GB20 and wait for the engine to start. 5. Disconnect the cables in the reverse order.

Troubleshooting

Error	Reason/Solution
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.

Warranty of NOCO GB20 Battery Jump Starter

NOCO warrants that this product (the "Product") will be free from defects in material and workmanship for a period of one (1) year from the date of purchase (the "Warranty Period"). For defects reported during the Warranty Period, NOCO will, at its discretion, and subject to NOCO's technical support analysis, either repair or replace defective Products. Replacement parts and products will be new or serviceably used, comparable in function and performance to the original part and warranted for the remainder of the original Warranty Period.

Pros & Cons

Pros:
- Compact and portable
- Multiple safety features
- Versatile charging options
- Quick and easy jump-starting
Cons:
- May not work with larger engines or heavily depleted batteries
- Replacement batteries are not user-replaceable

Customer Reviews

Customers have praised the NOCO GB20 for its compact size, ease of use, and quick jump-starting capabilities. However, some have expressed disappointment with its limited compatibility with larger engines and the inability to replace the internal battery.

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