NOCO Boost Plus GB40 1000 Amp 12V UltraSafe Lithium Jump Starter – Real User Review
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First Impressions
After owning the NOCO Boost Plus GB40 for a few months, I can confidently say it’s one of the most reliable pieces of emergency gear any driver can own.
It’s compact, rugged, and incredibly easy to use—even for someone with zero mechanical experience. The matte rubberized finish gives it a premium, durable feel,
and its compact size means it easily fits in the glove box or under a seat.
Performance and Power
The GB40 delivers 1000 amps of peak current, which is enough to jump-start gas engines up to 6 liters and diesel engines up to 3 liters.
I personally tested it on a 2014 Toyota Prius and later on a Ford F-150—both started instantly.
The internal lithium battery holds a charge impressively well; even after sitting unused for two months, it still had plenty of power left.
The real standout feature is the UltraSafe technology. You don’t need to worry about reverse polarity or sparks—the GB40 won’t let you connect it incorrectly.
It’s genuinely foolproof and gives peace of mind during stressful roadside situations.
Extra Features That Make a Difference
- LED Flashlight: With seven modes including SOS and strobe, this powerful 100-lumen light is surprisingly useful at night.
- USB Charging: It doubles as a power bank, letting you charge phones, tablets, or even small cameras via USB.
- Rugged Build: Water-resistant and built to handle cold and heat, it’s ready for all-season use.
Why It’s Worth Buying
The biggest advantage is independence—it means never having to wait for roadside assistance or flag down another driver again.
Whether you’re traveling long distances or just want the security of knowing your car will always start, the GB40 provides unbeatable convenience.
It’s also rechargeable via micro-USB, and a single charge can handle up to 20 jump starts.
Pros
- Powerful enough for most vehicles (up to 6L gas / 3L diesel)
- Compact and lightweight – fits easily in any car
- Safe and spark-proof operation
- Dual functionality – jump starter + power bank + flashlight
- Long battery life and quick recharge
Cons
- Does not include a wall charger (USB only)
- Clamps are a bit stiff when new
- Price is higher than some generic alternatives, but worth it for reliability
User Experience and Reliability
Most Amazon buyers (over 100,000 ratings) consistently highlight its reliability and power.
Many mention using it for multiple vehicles and even boats without a single failure.
Some note that the carrying case (sold separately) is a good investment for keeping cables organized.
Final Verdict
The NOCO Boost Plus GB40 is an essential tool for every driver.
It’s not just a jump starter—it’s a multi-purpose emergency device that can save you in critical moments.
While it may cost a bit more than cheaper models, the build quality, performance, and ease of use make it absolutely worth it.
If you want peace of mind on the road, this is the jump starter to get.
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