⚠️ DANGER
PRIOR TO USE, READ AND UNDERSTAND PRODUCT SAFETY INFORMATION.
Failure to follow these instructions may result in ELECTRICAL SHOCK, EXPLOSION, or FIRE, which may result in SERIOUS INJURY, DEATH, DAMAGE TO DEVICE or PROPERTY. Do not discard this information.
Welcome
Thank you for purchasing the NOCO Genius® Boost™ GB70. Please read and understand this User Guide before operating the product. For questions regarding this jump starter, view comprehensive support information at www.no.co/support. To contact NOCO for personalized support (not available in all areas), visit www.no.co/connect.
What's In The Box:
- GB70 Lithium Jump Starter with HD Battery Clamps
- Micro USB Cable
- 12V Female Plug (OUT)
- 12V Male Plug (IN)
- 12V XGC Cable
- User Guide & Information Guide and Warranty
Contacting NOCO
Phone: 1.800.456.6626
Email: support@no.co
Mailing Address: 30339 Diamond Parkway, #102, Glenwillow, OH 44139, United States of America
About the GB70
The NOCO Genius® Boost™ GB70 is an ultra-compact and portable lithium-ion jump starter designed for high-displacement gas and diesel engines in cars, trucks, boats, and more. It is safe for use on engines of any size, featuring spark-proof technology and reverse polarity protection. The GB70 can instantly jump start most single-battery applications up to 40 times on a single charge. It also includes a USB battery pack, a 12V OUT port, and an LED flashlight, making it an ultimate emergency tool.
Getting Started
The GB70 comes partially charged and needs to be fully charged before use. Always read and understand the vehicle owner's manual for specific precautions and recommended jump-starting methods. Determine the voltage and chemistry of the battery by referring to your battery owner's manual. The GB70 is designed for jump starting 12-volt lead-acid batteries only.
Connecting to the Battery
Before connecting, verify you have a 12-volt lead-acid battery. The GB70 is not suitable for other battery types. Identify the correct polarity of battery terminals: positive terminals are typically marked (POS, P, +), and negative terminals (NEG, N, -). Avoid connections to the carburetor, fuel lines, or thin sheet metal parts.
The following instructions are for a negative ground system (most common). If your vehicle has a positive ground system (very uncommon), follow these instructions in reverse order:
- 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 reverse sequence: remove the negative first (or positive first for positive ground systems).
Jump Starting
- Verify the voltage and chemistry of the battery.
- Confirm the HD battery clamps are connected to the correct polarity battery terminals.
- Ensure all vehicle power loads (headlights, radio, air conditioning, etc.) are turned off before attempting to jump start.
- Press the Power Button to begin jump starting. All LEDs will flash, indicating proper function. If connected correctly, the White Boost LED will illuminate and charge level LEDs will chase. If connected in reverse, the Red Error LED will illuminate. Reverse connections to clear the error, then the White Boost LED will illuminate, indicating the GB70 is ready.
- Attempt to start the vehicle. Most vehicles will start immediately. Some may require the GB70 to be connected for up to 30 seconds before starting. If the vehicle doesn't start, 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 GB70 to rest for fifteen (15) minutes before reattempting.
- Once the vehicle has started, disconnect the battery clamps and remove the GB70.
Low Voltage Batteries & Manual Override
The GB70 can jump start 12-volt lead-acid batteries down to 2-volts. If the battery is below 2-volts, the Boost LED will be "Off," indicating the GB70 cannot detect a battery.
For batteries below 2-volts, a Manual Override feature allows forcing the jump start function "On."
CAUTION: Use this mode with extreme care.
This mode is for 12-volt lead-acid batteries only. Both spark-proof and reverse polarity protection features are disabled. Pay very close attention to battery polarity before using this mode. Do not allow positive and negative battery clamps to touch or connect, as the product will generate sparks. This mode uses very high current (up to 2000 Amps) that can cause sparks and high heat if not used properly. If unsure, do not attempt and seek professional help.
Before using Manual Override, ensure HD battery clamps are connected to the correct polarity terminals. To activate, press and hold the Manual Override Button (represented by a red exclamation point icon inside a red circle) for three (3) seconds. The White Boost LED will flash "On" and "Off," confirming successful entry into Manual Override and readiness to jump start. If connected in reverse polarity, the Red Error LED will illuminate, and the unit will not operate.
CAUTION: Power the GB70 "OFF" before disconnecting the battery clamps.
This ensures safety. Remember, both spark-proof and reverse polarity protection features are disabled in Manual Override mode.
Understanding Charge LEDs
The GB70 has four (4) Charge LEDs (25%, 50%, 75%, and 100%) that indicate the internal battery's state-of-charge (SOC) when NOT connected to a power supply and recharging:
| LED | Explanation |
|---|---|
| 25% Red LED (●○○○) | Solid when internal battery is 25% or less charged. |
| 50% Red LED (●●○○) | Solid when internal battery is more than 25% but less than 50% charged. |
| 75% Yellow LED (●●●○) | Solid when internal battery is more than 50% but less than 75% charged. |
| 100% Green LED (●●●●) | Solid when internal battery is more than 75% up to 100% charged. |
When Recharging the GB70
When the GB70 is connected to a power supply for recharging, the Charge LEDs behave as follows:
| LED | Explanation |
|---|---|
| 25% Red LED (●○○○) | Slowly pulses "On" and "Off" when battery is less than 25% charged. Solid when battery is 25% charged. |
| 50% Red LED (●●○○) | Slowly pulses "On" and "Off" when battery is less than 50% charged. Solid when battery is 50% charged. |
| 75% Yellow LED (●●●○) | Slowly pulses "On" and "Off" when battery is less than 75% charged. Solid when battery is 75% charged. |
| 100% Green LED (●●●●) | Slowly pulses "On" and "Off" when battery is less than 100% charged. Solid when battery is fully charged, and 25%, 50%, 75% Charge LEDs turn "Off". |
Understanding Error Conditions
The GB70 displays an Error Condition for reverse polarity, battery voltage below two (2) volts, or internal battery overheating. When an error occurs:
| Error | Reason/Solution |
|---|---|
| Error LED Solid Red | Reverse polarity / Reverse the battery connections. |
| Error LED Blinking Red (with cables connected properly) | Internal battery is too hot / Allow the unit to cool. Bring the unit into a cooler environment. |
| Boost Light Does Not Come On (with cables connected properly) | Connected battery is below 2-volts / Remove all loads, and try again, or use Manual Override Mode. |
Charging the GB70
12V Fast Charge (36W)
Connect the 12V Cable to the "12V IN" port on the GB70, and the other end to the Male 12 Plug. Plug into a powered 12V AUX Plug (Cigarette Lighter Port).
USB Charging (Up to 10W)
Connect the GB70 using the included USB Charge Cable to the USB IN port and a powered USB port (e.g., AC adapter, car charger, laptop). The USB IN port is rated at 2.1 Amps for safe and efficient charging of the internal lithium battery.
Due to FCC regulations, NOCO does not recommend charging and discharging the unit simultaneously.
Charging Times
Recharge time for the GB70 varies based on discharge level and power source. Actual results may differ due to battery conditions.
| USB Charger Rating | 12V Fast Charge | |||
|---|---|---|---|---|
| .5A | 1A | 2A | 3A @ 12V (36W) | |
| Time | 28hr | 14hr | 7hr | 2-3hr |
Charging Your USB Devices
The GB70 can recharge virtually any USB device, such as a smartphone. Connect the included USB Charge Cable to the USB OUT port and then to your USB device.
The number of times a USB device can be recharged varies. For recharge times, contact the device manufacturer.
Powering Your 12V Devices
Connect the 12V Cable to the "12V OUT" port on the GB70, and the other end to the Female 12V Plug (12V AUX/Cigarette Lighter Port). Plug in any standard 12V device (up to 15A) with a 12V plug and turn the GB70 "On" to start powering your device.
LED Flashlight
The GB70 features an integrated ultra-bright LED flashlight with seven (7) light modes affecting performance and longevity: 100%, 50%, 10%, SOS, Blink, Strobe, and Off.
To turn the flashlight "On" and "Off," use the Power button with the light bulb icon. Press once for 100% luminosity, again for 50% (within 3 seconds), again for 10% (within 3 seconds), again for SOS (within 3 seconds), again for Blink (within 3 seconds), again for Strobe (within 3 seconds), and again for "Off." If a light mode is not selected within 3 seconds, it remains "On" in the current mode; the next selection turns the flashlight "Off."
Output and runtime vary by mode. Selecting a lower power level for extended use prolongs battery life.
Modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off
Technical Specifications
| Internal Battery: | Lithium Ion |
|---|---|
| Peak Current Rating: | 2000A |
| Joules3S: | 15700+ |
| Operating Temperature: | -30°C to +50°C |
| Charging Temperature: | 0°C to +40°C |
| Storage Temperature: | -20°C to +50°C (Avg Temp.) |
| Micro USB (Input): | 5V, 2.1A |
| USB (Output): | 5V, 2.1A |
| 12V (Input): | 12V, 3A |
| 12V (Output): | 12V, 15A |
| Housing Protection: | IP65 (with Ports Closed) |
| Cooling: | Natural Convection |
| Dimensions (L x W x H): | 8.6 x 6 x 2.5 Inches |
| Weight: | 5 Pounds |
Energy Saving Auto Shut Off
The GB70 has a built-in energy saving feature that automatically turns the unit off after seven (7) hours. To continue using, simply power on the unit again.
User Interface Overview
Based on the diagrams (e.g., page 10, 11), the GB70 user interface includes the following elements:
- Internal Battery Level LEDs: A series of four LEDs (25%, 50%, 75%, 100%) indicating 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: Used to turn the unit "On" and "Off".
- Power LED: Illuminates white when the unit is "On".
- Boost LED: Illuminates white when Boost mode is active. If connected properly to a battery, the GB70 automatically detects the battery and enters Boost mode (LED flashes white when Manual Override feature is active).
- Manual Override Button: A button with a red exclamation point icon inside a red circle. Press and hold for three (3) seconds to enable. WARNING: This disables safety protection and manually forces Boost "On." Only use when a battery is too low to be detected.
- Light Mode Button: A button with a light bulb icon. Toggles the ultra-bright LED light through its 7 modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off.
