Using the NOCO GB40 to jump start your car is simple, fast, and safe when you follow the right steps. This portable jump starter packs enough power to start most 12-volt vehicles, including cars, trucks, motorcycles, and boats, without the need for another vehicle or messy cables.
Whether you’re stranded with a dead battery on the side of the road or just want peace of mind during winter months, the NOCO GB40 offers a reliable and user-friendly solution.
Imagine being stuck in a remote location with no one around to give you a jump—this compact device can be a lifesaver. Designed with advanced safety features, it protects against sparks, reverse polarity, and overcharging, so even first-time users can confidently use it.
Best Batteries for Jump Starting with NOCO GB40
When it comes to jump-starting your vehicle using the NOCO GB40, having a reliable battery is key to success. While the NOCO GB40 itself is a powerful lithium-ion jump starter, it’s important to understand which vehicle batteries it pairs best with and some related products that enhance your jump-starting experience.
Optima RedTop 8020-164 Group 35 Battery
The Optima RedTop is renowned for its high cranking power and rapid recharge capabilities. Its AGM (Absorbed Glass Mat) design offers superior vibration resistance and can be mounted in various positions, making it ideal for performance vehicles and trucks. This battery’s robust construction ensures a reliable start every time, even in extreme conditions.
ACDelco 48AGM Group 48 Automotive AGM Battery
ACDelco’s 48AGM battery provides excellent starting power and is designed to handle the demands of modern vehicles with numerous electronic accessories. Its AGM technology ensures a longer lifespan and better performance in cold temperatures, making it a dependable choice for everyday drivers.
CHROME PRO BATTERY 12V 18AH Sealed Lead Acid (SLA) Battery
For those seeking a budget-friendly option, the CHROME PRO SLA battery offers reliable performance for standard vehicles. While it may not have the advanced features of AGM batteries, it provides consistent power for jump-starting needs and is widely compatible with various vehicles.
How Do You Safely Prepare the NOCO GB40 to Jump Start Your Car?
Safety is paramount when jump-starting a vehicle, and the NOCO GB40 is designed to make the process straightforward while protecting both you and your car. Preparing your NOCO GB40 properly ensures a safe and effective jump start.
Here’s how to safely prepare the NOCO GB40:
Step 1: Read the Manual First
Before anything else, familiarize yourself with the user manual. It contains vital safety instructions specific to your NOCO GB40 model.
Step 2: Ensure the NOCO GB40 is Fully Charged
Check the battery indicator lights on the GB40 to confirm it has enough charge. A fully charged device guarantees enough power for a successful jump.
Step 3: Turn Off Your Vehicle and Accessories
Make sure your car’s ignition is off and all electronics (radio, lights, AC) are switched off to avoid electrical surges during the jump.
Step 4: Wear Safety Gear
Use protective gloves and glasses if possible to guard against sparks or accidental contact with battery acid.
Step 5: Check the Vehicle Battery and Surroundings
Inspect the dead battery and the terminals for corrosion or damage. Clean terminals with a wire brush if necessary. Also, ensure the area is dry and well-ventilated.
Step 6: Identify Battery Terminals
Locate the positive (+) and negative (-) terminals on your car battery. The NOCO GB40 clamps are color-coded: red for positive, black for negative.
Step 7: Connect the NOCO GB40 Correctly
- Attach the red clamp to the positive (+) terminal of the dead battery.
- Attach the black clamp to a grounded metal part of the car away from the battery (such as an unpainted bolt on the engine block). Avoid connecting directly to the negative battery terminal for safety.
Step 8: Avoid Touching the Clamps Together
Never let the red and black clamps touch each other once connected to the NOCO GB40, as this can cause sparks or damage.
Step 9: Power On the NOCO GB40
Press the power button on the GB40. The device will run self-checks and signal if everything is properly connected.
How Do You Use the NOCO GB40 to Jump Start Your Car Step-by-Step?
Jump-starting your car with the NOCO GB40 is straightforward when you follow the correct sequence. This step-by-step guide will help you get your vehicle running quickly and safely.
Step 1: Prepare the NOCO GB40 and Vehicle
Make sure the NOCO GB40 is fully charged and the vehicle is off, with all accessories turned off.
Step 2: Attach the Clamps Properly
Connect the red clamp to the positive (+) terminal on your car battery or the jump-starting point. Attach the black clamp to a solid, unpainted metal ground on the engine block or chassis, away from the battery.
Step 3: Turn On the NOCO GB40
Press the power button on the jump starter. It will perform a safety check and confirm if connections are correct with a green light.
Step 4: Start Your Vehicle
Attempt to start your car. If the battery is weak but not completely dead, your vehicle should start within a few seconds.
Step 5: If the Vehicle Doesn’t Start, Wait and Retry
If it doesn’t start on the first try, wait 2-3 minutes and try again. Avoid excessive cranking to protect your starter motor.
Step 6: Once the Vehicle Starts, Disconnect the NOCO GB40
Turn off the NOCO GB40 first. Then remove the black clamp from the ground, followed by the red clamp from the battery terminal.
Step 7: Let Your Car Run
Keep the engine running for at least 20 minutes or drive around to allow the alternator to recharge the car battery.
Additional Tips
- Never connect the clamps in reverse polarity; the NOCO GB40 has protection but always double-check connections.
- If your car still won’t start after several attempts, the battery may be too far gone or there might be another issue. Seek professional help.
- Store your NOCO GB40 in a dry, cool place and recharge it every 3-6 months to maintain battery health.
What Safety Features Does the NOCO GB40 Have to Protect You and Your Vehicle?
One of the biggest concerns when jump-starting a car is safety — for you, your vehicle, and the device itself. The NOCO GB40 comes equipped with several advanced safety features designed to prevent accidents and ensure a smooth jump-starting experience.
Spark-Proof Technology
The NOCO GB40 is designed to prevent sparks when connecting the clamps to the battery terminals. This is crucial because sparks near a car battery can ignite flammable gases, leading to dangerous explosions.
Reverse Polarity Protection
If you accidentally connect the clamps backwards (positive to negative and vice versa), the GB40 won’t allow a jump start. Instead, it emits a clear warning sound and prevents current flow, protecting your car’s electrical system and the device.
Overcharge and Overcurrent Protection
The device automatically shuts off if it detects an overcharge or excessive current flow. This helps to protect both the jump starter’s battery and the vehicle’s battery from damage.
Overvoltage and Short Circuit Protection
The NOCO GB40 monitors voltage levels to prevent damage from voltage spikes. It also shuts down if it detects a short circuit, preventing electrical faults and hazards.
Reverse-Charge Protection
If the jump starter’s battery is lower than the vehicle battery, the GB40 prevents draining itself by blocking reverse current flow.
Safe for Sensitive Electronics
Because it delivers a controlled and steady burst of power, the NOCO GB40 is safe to use on modern vehicles with delicate onboard electronics, including computers, sensors, and infotainment systems.
These features combine to make the NOCO GB40 one of the safest portable jump starters on the market — giving you confidence during every jump-starting situation.
Can the NOCO GB40 Jump Start Different Types of Vehicles?
Yes! The NOCO GB40 is a versatile jump starter designed to handle a wide range of vehicles safely and effectively. Understanding its compatibility helps you know exactly when and how you can rely on it.
Gasoline Vehicles
The NOCO GB40 can jump start gas engines up to 6 liters in size. This means most cars, SUVs, motorcycles, boats, and light trucks with gasoline engines fall within its range. For example:
- Compact cars
- Sedans
- Motorcycles
- Small SUVs and trucks
Diesel Vehicles
For diesel engines, the GB40 can handle engines up to 3 liters. Diesel engines generally require more power to start, so this is an important limit to know:
- Smaller diesel cars
- Diesel motorcycles
- Light-duty diesel trucks and boats
Recreational Vehicles and Boats
The NOCO GB40’s portability and power make it a favorite among boaters and RV enthusiasts. Its ability to jump start marine batteries adds an extra layer of safety for on-water adventures.
Compatibility Limits
- Engines larger than 6L gasoline or 3L diesel may require a more powerful jump starter like the NOCO GB70 or NOCO Boost HD GB150.
- Electric vehicles (EVs) do not use traditional 12V starter batteries for propulsion and require specialized charging methods, so the GB40 won’t jump start EV drive batteries but can still power their 12V auxiliary systems in emergencies.
Multiple Vehicle Types in One Device
Thanks to its advanced microprocessor, the GB40 automatically detects and adjusts power output to protect your vehicle’s battery and electronics regardless of the vehicle type.
Quick Tips
- Always check your engine size before attempting a jump start with the NOCO GB40.
- For larger vehicles, invest in a higher amp jump starter for safety and effectiveness.
How Do You Maintain and Care for Your NOCO GB40 to Ensure Longevity?
To keep your NOCO GB40 ready whenever you need it, proper maintenance and care are essential. A well-maintained jump starter not only lasts longer but also performs reliably when your car battery dies unexpectedly.
Regularly Charge the Device
The NOCO GB40 has a built-in lithium-ion battery that should be recharged every 3 to 6 months, even if you haven’t used it. This prevents the internal battery from fully draining and helps maintain its capacity.
Store in a Cool, Dry Place
Extreme temperatures can damage the internal battery. Avoid leaving your GB40 in a hot car or freezing environments. Store it indoors, ideally between 32°F (0°C) and 113°F (45°C).
Keep the Clamps Clean and Dry
Check the clamps for dirt, grease, or corrosion before and after use. Wipe them with a dry cloth and store the clamps clipped together to prevent damage.
Inspect Before Use
Before jump-starting, inspect the unit for any physical damage or cracks. If you notice any abnormalities, do not use the device and contact NOCO support.
Avoid Overloading
Don’t attempt to jump start vehicles that exceed the NOCO GB40’s engine size recommendations. Overloading can damage the device and void warranty.
Follow Manufacturer Instructions
Always refer to the user manual for specific care instructions and safety tips to avoid accidental damage.
Firmware Updates
Check if NOCO provides firmware updates for your GB40 model. Keeping the software up to date can improve performance and safety features.
Conclusion
Using the NOCO GB40 to jump start your car is a safe, quick, and reliable solution when your battery dies unexpectedly. By preparing the device correctly, following the step-by-step jump-start process, and respecting its safety features, you can get your vehicle running without hassle or risk
Its versatility allows you to jump start a variety of gasoline and diesel vehicles, making it a handy tool for any driver or outdoor enthusiast. Remember, proper maintenance and storage will ensure your NOCO GB40 stays ready whenever you need it.
Ready to take control of those dead battery emergencies? Keep your NOCO GB40 charged and accessible at all times.
Frequently Asked Questions About How to Use NOCO GB40 to Jump Start Car
How long does the NOCO GB40 take to jump start a car?
Typically, the NOCO GB40 can start a vehicle within a few seconds after properly connecting the clamps and powering on the device. If the car doesn’t start immediately, wait 2-3 minutes and try again. Avoid prolonged cranking to protect your starter motor.
Can I use the NOCO GB40 on any car?
The GB40 works best on gasoline engines up to 6 liters and diesel engines up to 3 liters. For larger engines, a more powerful jump starter is recommended. It’s not suitable for electric vehicles’ main drive batteries but can support their 12V systems.
What if I connect the clamps incorrectly?
The NOCO GB40 has reverse polarity protection. If clamps are connected incorrectly, the device won’t allow current to flow and will alert you with a warning light and sound. Always double-check connections before powering on.
How often should I charge the NOCO GB40?
To keep the internal battery healthy, recharge the GB40 every 3 to 6 months, even if unused. This ensures the device is always ready for emergencies.
Can I jump start my motorcycle with the NOCO GB40?
Yes, the NOCO GB40 is perfect for motorcycles as well as cars, boats, and small trucks, making it versatile for various vehicles.
Is the NOCO GB40 safe for modern cars with sensitive electronics?
Absolutely. The GB40 uses controlled power output to protect sensitive onboard electronics, ensuring no damage to computers, sensors, or infotainment systems.
What should I do if my car still won’t start after several attempts?
If your vehicle doesn’t start after multiple tries, the battery may be too damaged or there might be other mechanical issues. In that case, consult a professional mechanic or roadside assistance.