NOCO Boost Max GB250 5250 Amp 12-Volt UltraSafe Portable Lithium Jump Starter Box, Battery Booster Pack, And Commercial Jumper Cables for Gasoline And Diesel Engines Up To 16-Liters

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Im a truck driver and over the years I’ve learned from both my personal vehicle and recently the hassle of driving in winter with a semi. Road service takes ages and has to figure out how to connect to your battery post. Not all trucks have the same jump locations. Plus unlike personal vehicles, service calls for semi are 3x to 5+x more expensive. You can’t depend on other nearby truckers to boost you, they either don’t want to or don’t have a cable. Either scenario is understandable which is why a need for one of these was on my mind for years.
Having used smaller portable jumps on personal vehicle, I did the math on how much power I needed. Then I thought a bigger battery would last longer and possibly run some power for my accessories during my 10H break. I went from deciding on a $200-$300 booster to this.
Main reason I’m posting this is to share my experience and debunk other reviewers. If you follow the instructions, you shouldn’t have an issue jumping your truck instantly. You’re not supposed to wait 60 seconds. It clearly tells you to start within 60 seconds. This is elementary English that means you have a 60 second countdown before it stops channeling max energy to cables. That’s why the step before turning on is to connect the cables. This is common knowledge on all boosters. It’s also common knowledge to turn on the booster vehicle after connecting wires with traditional cables. Then starting booster vehicle after a couple seconds.
Another issue I see is people not knowing how to connect this portable to their main batteries on a semi. Makes and models have different safety jump posts, some don’t. But your lack of knowledge is the issue. All you need to do is connect red to live and black to negative or ground. The device will visually alert you with a countdown if it is connected properly.
Now I use this daily to power portable fans and keep my phone and accessories charged. The power bank can do this all week before needing to charge. Winter is coming up and I’ll be ready again. With the way our economy is, I tend to charge drivers for helping them. Only $20, nothing absurd. Sometimes they give me more and even invite me to dinner at truck stop. This device is saving me a lot of money and has already paid itself within ten months.
If it doesn’t last two years, I will be updating this review. But so far I’d recommend it.
Just be aware of shipping. I live upstairs in apartment and delivery driver left it downstairs on other side of building. I made a big deal out of it until I found a neighbor home a few weeks later and told me he held on to it, was sitting outside his door and showed me how it was placed through his security camera. My guess is the driver thought it was too heavy and hoped a neighbor would give it to me. But my address wasn’t on the label, only my name. Make sure you are home, have a security camera, or have it delivered to safe location. Because Amazon will ask you to make police report before starting a refund if it is lost. As this is an expensive item.

It is expensive but it will start a tank.