NOCO Boost Plus GB40 – Powerful, Portable, and Ready When You’re Stranded
You’re running late, already stressed, and then it happens—you turn the key and get nothing. No lights, no engine rumble, not even a flicker. Just a dead battery and that sinking feeling in your gut. It’s the kind of moment where every minute matters, and suddenly you’re stuck, fumbling for jumper cables, calling roadside assistance, or praying a stranger nearby has the tools (and know-how) to help. Situations like this are exactly why every driver needs a powerful, no-hassle backup plan in the trunk.
That’s where the NOCO Boost Plus GB40 comes in. This compact 1000-amp jump starter isn’t just strong—it’s designed for real-world emergencies. With enough juice to fire up gas engines up to 6.0L and diesel up to 3.0L, you’re looking at up to 20 jump starts per charge in a device smaller than your water bottle. It’s spark-proof, reverse-polarity protected, and safe to use even if you’ve never jumped a car before. And when you’ve got the GB40 ready to go, you’re not hoping for help—you are the help.
| Feature | Details |
|---|---|
| Model | NOCO Boost Plus GB40 |
| Peak Amps | 1,000 Amps |
| Battery Type | Lithium |
| Compatibility | Gas engines up to 6.0L, Diesel engines up to 3.0L |
| Jump Starts Per Charge | Up to 20 |
| Voltage | 12 Volts |
| Charging Port | USB (for recharging the unit) |
| Additional Ports | USB Out (2.1A) to charge devices like phones and tablets |
| Safety Features | Spark-proof, Reverse polarity protection |
| Flashlight | 100-lumen LED flashlight with 7 modes (including SOS and emergency strobe) |
| Dimensions | 6.57 x 3.15 x 7.72 inches |
| Weight | 2.4 pounds |
| Carrying Case Included | Yes (Microfiber Storage Bag included) |
| Accessories | HD battery clamps, USB charging cable |
🔋 Why the NOCO Boost Plus GB40 Packs Serious Power in a Compact Design
✅ Jump-start your vehicle in seconds — The NOCO Boost Plus GB40 delivers a massive 1,000 peak amps to instantly bring dead 12V car batteries back to life. It works on gas engines up to 6.0L and diesel up to 3.0L, making it an ideal emergency tool for cars, SUVs, trucks, ATVs, boats, and more. No need to flag down strangers or wait hours for roadside service — just connect and go.
📦 Compact design, big performance — Despite weighing only 2.4 pounds and fitting in your glovebox, the GB40 packs enough power to rival bulky jump starters. It’s small enough for glove compartments or emergency kits, yet strong enough to rescue a wide range of vehicle types. Ideal for drivers who want serious power without hauling around a giant box.
⚡ Get up to 20 jump starts per charge — This isn’t a one-time-use gadget. On a full charge, it delivers up to 20 jump starts depending on battery condition and vehicle size. Whether you’re powering up multiple cars on a cold morning or prepping for a road trip, this unit brings consistent power without constant recharging.
🧠 Safe and beginner-friendly — Built with reverse polarity protection and spark-proof technology, it prevents accidental short-circuits or shock risks. Even if you hook up the clamps wrong, the device won’t activate — protecting both you and your vehicle. It’s smart, reliable, and ideal for users with little mechanical experience.
🔦 Built-in 7-mode flashlight — Includes a powerful 100-lumen LED flashlight with high, low, strobe, SOS, and emergency beacon modes. Perfect for nighttime breakdowns, lighting up your engine bay, or signaling for help on the road. A lifesaver in power outages or roadside situations with zero visibility.
📱 USB power bank functionality — The 2.1A USB out port lets you recharge phones, tablets, and other USB-powered devices right from the GB40. Whether your phone’s dead on a camping trip or your tablet runs out during a flight delay, this unit keeps your gear alive when outlets aren’t around.
🌧️ Weather-resistant, rugged build — Built to perform in extreme conditions, the GB40 works in rain, snow, or freezing temps. Its rubberized casing provides extra grip and durability, while internal components are made to withstand tough roadside scenarios. Whether you’re in your garage or off-grid, this jump starter is made to last.
Boosted and inflated — your car’s ready for anything. This cordless inflator pairs perfectly with a jump starter to keep you covered from driveway to detour.
⚠️ Before You Pull the Trigger on the NOCO Boost Plus GB40 Jump Starter
🚫 Not ideal for larger diesel engines — The GB40 is rated for gas engines up to 6.0L and diesel engines up to 3.0L. If you drive a heavy-duty truck, RV, or commercial vehicle with a larger diesel engine, this model likely won’t have enough cranking amps to get the job done. You’ll need a higher-rated jump starter like the GB70 or above.
🔋 No wall adapter included for charging — While the unit includes a USB charging cable, it doesn’t come with a wall plug. You’ll have to use your own USB wall adapter (like a phone charger) to recharge it from a standard outlet. This isn’t a dealbreaker, but it’s worth noting if you want a ready-to-go charging setup out of the box.
💼 Doesn’t include a protective hard case — The included microfiber storage pouch helps with portability but doesn’t offer serious protection. If you plan to keep it in a trunk, work truck, or glove compartment long-term, a molded hard-shell case may be a worthwhile upgrade to avoid accidental damage.
🔌 USB-C input, but still USB-A output only — It recharges through USB-C for convenience, but the device only outputs via a standard USB-A port. That means it won’t support USB-C fast charging for newer phones or devices. It’s functional for emergency power, just not a replacement for your wall charger or high-speed power bank.
🕒 Takes time to recharge fully — Expect a full recharge to take about 3 hours when using a 2.1A USB wall adapter. It doesn’t support rapid charging, so if it’s been sitting idle or used multiple times, you’ll want to top it off well in advance of needing it again. This makes pre-trip prep key if you’re storing it long-term.
Power under the hood, clean under the seats. This compact cleaner tackles coffee spills, pet messes, and road trip disasters like a pro.
✅ Final Verdict: Is the NOCO Boost Plus GB40 Worth It?
The truth is, most jump starters sit in the garage collecting dust — too bulky, too slow, or too unreliable when it actually counts. The NOCO Boost Plus GB40 flips that completely. It’s compact, easy to use, and powerful enough to restart your car when you’re stranded with a dead battery and zero backup. Whether it’s freezing out, raining, or you’re stuck solo in a parking lot, this 1000 amp portable jump starter gives you one thing that’s rare on the road: control.
What you’re really paying for here isn’t just battery power — it’s peace of mind that fits in your glovebox. From jump-starting a 6.0L gas truck to charging your phone while camping, the NOCO GB40 hits that perfect balance of utility, safety, and packability. Add in the flashlight, smart clamps, and ultra-safe design, and it doesn’t feel like a backup plan — it feels like a must-have. If you own a car and want to be ready for anything, this is a no-brainer.
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