Introduction
The NOCO Boost GB70 is a powerful and reliable lithium-ion jump starter designed to revive dead batteries safely and efficiently. Whether you’re stranded on the roadside or helping a friend in need, this compact but robust device can jump-start gasoline engines up to 8 liters and diesel engines up to 6 liters. It’s not just a jump starter—it also functions as a portable power bank and emergency flashlight. In this guide, we’ll explore in detail how to use the NOCO Boost GB70, covering everything from safety precautions and setup to advanced usage and maintenance.
What Is the NOCO Boost GB70?
The NOCO Boost GB70 is part of the Genius Boost line of ultra-safe lithium jump starters. It offers 2000 amps of peak current, which is more than enough to jump-start most cars, trucks, boats, motorcycles, ATVs, lawnmowers, and more. It features spark-proof technology, reverse polarity protection, and can also charge USB devices and power 12V appliances.
Key Features
- 2000-amp peak current
- 8-liter gas and 6-liter diesel compatibility
- Ultra-safe technology (spark-proof and reverse polarity protection)
- Integrated 400-lumen LED flashlight
- USB and 12V power output
- Rugged and water-resistant design
What’s in the Box?
When you purchase the NOCO Boost GB70, the package typically includes:
- GB70 jump starter unit
- HD battery clamps
- 12V car charger
- USB charging cable
- Microfiber storage bag
- User guide
Make sure all components are included before using your device.
Before You Begin: Important Safety Tips
- Always read the user manual thoroughly.
- Ensure the GB70 is fully charged before use.
- Only use the GB70 on 12-volt lead-acid batteries.
- Avoid contact between metal clamps and any conductive surfaces.
- Never connect both clamps to the same terminal.
- Wear safety goggles and gloves when working with batteries.
Charging the NOCO Boost GB70
Before its first use or after extended storage, charge your GB70:
- Connect via USB: Use the included USB charging cable and a wall adapter. A 2.1A charger is recommended for faster charging.
- 12V Charging Option: You can also use the included 12V car charger.
- LED Indicators: The charge level LEDs will blink while charging and stay solid once fully charged.
- Charge Time: Charging from 0% to 100% can take around 6 hours via 2.1A USB.
How to Jump-Start a Vehicle with the NOCO Boost GB70
Follow these steps carefully to jump-start your vehicle:
Step 1: Ensure the GB70 Is Charged
Verify that the battery indicator shows at least 25% charge. A fully charged GB70 ensures a strong, reliable jump start.
Step 2: Turn Off Vehicle Accessories
Switch off all accessories like headlights, radio, and AC to reduce power draw.
Step 3: Connect the Clamps to the Battery
- Red Clamp: Attach to the positive terminal (+)
- Black Clamp: Attach to the negative terminal (–) or an unpainted metal surface on the engine block
Make sure the clamps have a firm connection.
Step 4: Power On the GB70
Press the power button. The LEDs will light up, indicating the device is active and monitoring the connection.
Step 5: Start the Vehicle
Crank the engine. Most vehicles should start within 5 seconds.
- If the vehicle doesn’t start, wait 30 seconds and try again.
- Avoid more than three attempts to prevent overheating.
Step 6: Disconnect the Clamps
- Turn off the GB70.
- Remove the black clamp first, then the red clamp.
- Store the GB70 and drive your vehicle to recharge the alternator.
Using Manual Override Mode
Sometimes, a battery may be so depleted that the GB70’s safety sensors prevent it from supplying power. In such cases, use Manual Override:
- Press and hold the manual override button for 3 seconds.
- The white LED under the button will blink, indicating override mode is active.
- Connect the clamps and proceed to jump-start the vehicle.
- Use caution—manual override disables safety protections.
Using the GB70 as a Portable Power Bank
USB Charging
- Connect your USB-powered devices (smartphones, tablets, etc.) to the GB70’s 5V USB out port.
- The GB70 provides 2.1A of current for fast charging.
12V Power Output
- Use the 12V output port to power air compressors, fans, or other 12V accessories.
- Do not exceed 15A continuous draw.
Using the LED Flashlight
The GB70 includes a bright 400-lumen LED flashlight with multiple modes:
- Press the light button to cycle through: off, low, medium, high, flashing, strobe, and SOS.
- The flashlight is ideal for night repairs or emergencies.
Maintenance and Storage
Routine Maintenance
- Charge the GB70 every 3-6 months to ensure readiness.
- Wipe with a dry cloth to clean.
- Avoid exposure to extreme heat or direct sunlight.
Long-Term Storage
- Store in a cool, dry place.
- Do not store at 0% battery level for extended periods.
Troubleshooting Common Issues
GB70 Doesn’t Turn On
- Charge the unit fully and try again.
- Check the USB charger and cable for faults.
Vehicle Won’t Start
- Make sure clamps are secure and on clean metal.
- Wait 30 seconds between attempts.
- Use Manual Override if battery is completely dead.
Flashlight Not Working
- Check battery charge.
- Cycle through modes to ensure it’s not in SOS or strobe.
Pros and Cons of the NOCO Boost GB70
Pros
- Compact and portable
- High peak current for large engines
- USB and 12V accessory support
- Integrated flashlight with emergency modes
- Excellent safety features
Cons
- Higher price than some basic jump starters
- Requires regular charging to maintain readiness
- Manual override disables safety protections
Alternatives to the GB70
- NOCO Boost GB40: Suitable for smaller vehicles (up to 6L gas engines)
- GB150: For heavy-duty applications (up to 10L gas or diesel engines)
- Audew 2000A: Lower-cost alternative with similar specs
Conclusion
The NOCO Boost GB70 is a powerful, user-friendly, and multi-functional device that belongs in every car emergency kit. Whether you’re a weekend adventurer or a daily commuter, knowing how to use your GB70 ensures you’re always prepared for dead batteries, low phone power, or roadside emergencies. With safety, performance, and convenience in mind, the GB70 stands out as one of the best portable jump starters available today.
By following the proper steps and safety guidelines, you can use the GB70 to jump-start your vehicle, charge your devices, and even light your way—all from a device small enough to fit in your glove box.
Also Check:
• How Do You Know When Your Car Needs Freon