NOCO Genius Boost GB40 Real World Test and Review

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[clange]

Bought and used a gb40 3 times when my battery was dying years ago, kept in the trunk, checked after a year or so and topped it off, back in the trunk for a year, used it last week to jump my car on the side of the interstate. Worth every cent. 3.5L v6 in my case.

[larrydahlberg]

Bought one a couple days ago didn't open cause I was going to send it back. Well left the lights on last night and this morning the battery was dead. I open the charger box and out of the box started my car. Every husband should have this in your wife's car. Love it

[vancagadas]

I just bought mine this morning. It did really help with my car to start. Lifesaver. 👍

[thylacine]

My girlfriend gave me one for Xmas. And wouldn't you know it my battery died just 3 months later in a public garage at night. The worst place I'd want to be. I pulled this out of the trunk and after watching a tutorial on YouTube I tried it and it worked. I was so happy, this thing saved my life.

[cloudkicker]

Just received mine as of 24 July 23 this morning around 11:00. I had to use the override but it got my 2003 Honda Pilot started. Best $100.00 I ever spent. It is mistake proof. Glad I did my research on this!

[troyfall]

You mention that the battery may be too dead to jump @3:40. The GB40 has an override button with the red exclamation symbol on it. You hold this override button for a few seconds and then the chaser power level lights will come on. This should only be used if the battery is completely dead and is not recognized by the GB40. Using this override setting disables the safety features of the unit but does NOT increase the cranking power as some people think.

[whlrlife]

I've had one for a year. I bought it to carry in my bike's saddlebags. This summer my boats starting battery died, on the water. I had a neighbor bring it out to me. It worked. Now I switch around to different vehicles. I'm selling my jumpers cheap.

[Mmax]

I’ve used mine about 8 times in the last six months. Starts right up. I would never be without thus.

[carlowehermosa]

Just got 1 today…after my battery wouldn’t start and had to pay $75CAD just to boost from roadside assistance! Happy to see good review!😊

[thunderroad]

I have been using these for a few years now when I go to auto auction and even use it to start vehicles with no battery in it. This little bad boy has never let me down

[SquareLyfe]

I've had the GB70 for a while now and I love it. It starts my 5.3 V8 several times on a charge and its a newer engine so it still has decent compression. The built in circuit protection is also cool and really dummy proofs it (won't let you attach it backwards and fry your computers). I got tired of dealing with long jumper wires and a second vehicle. The light on it is also super handy and quite bright. I've used it when camping (3 nights, for a majority of the night) and still had battery to spare. Definitely worth the money!

[pault]

I have two of these since 2018. Every few months I have topped them off. Recently I acquired capacity test equipment, which drains the unit until the USB output falls below 4V and reports the mA*h consumed. After a top-off, one of them provided 3030 and the other only 2431. After charging them both back up, the capacity increased to 3532 and 3492 on the second test. So in the future I will do a full discharge and recharge once a year before winter, instead of a frequent top off. Evidently the top off causes the three cells in the battery pack to become unbalanced. The full cycle seems to make sure all three cells are at their best. For those of you who want to do this too, keep in mind the NOCO can also be used as a power bank to recharge your phone or other devices.

[archaichero]

Once you have one of these, you won't need jumping cables anymore. I have GB70. Used it many times. One of those times my alternator died on the way to drop off kid to school. LIkely it wasn't far away from home. I connected it to battery and closed the hood and drove like that to my driveway from kid's school. It was powerful enough to run a car with failed alternator. It wasn't far but still. Maybe more than a mile or 2. Other time I used it on friends Toyota 4runner SUV and he was so impressed with it that he actually ordered one. Other use that I had for it was to connect portable car tire inflator to fill up a tire without using car's battery or 12V port. Really great device. I have it for 3 years and still going strong.

[trep]

NOCO GB40 is a great product. I’ve used mine 4 times over three years it worked flawlessly. The instructions are brief and the GB 40 is easy to use. BTW the GB 40 is rated for up to a 6 liter gas or 3 liter diesel engine’s. Worth noting if the battery is toast meaning it’s unable to be charged this jumper might not get you going. This is detailed in the instructions.

[bobvoeh]

Last Christmas I bought NOCO GB40's for each of our cars. We haven't had to use them, so they are just sitting in the cars. Thanks for this video, it tells me I made the right choice. Great to know that it actually works in a real world situation.

[vikram_shahi]

I love how good this GB40 is.
Worth every dollar.

[awesome_by_default]

My work had one ready when needed and I've used it several times for customers and myself once. Never failed me.

[jeffreylindley]

I can confirm that the NOCO gb40 jump started my 2015 Ford Taurus SHO with no problem.

[MeticulousTechTV]

Just went outside to head to an appointment and my 2018 Mazda wouldn’t start, just blurbled a half start and lights flickered. Threw my ancient harbor freight charger on it for now but just ordered the Noco GBX45 Boost as I never want to be in this position again.

Note to all, use the battery pack! Charge / discharge cycles are important to the health of units like this. At minimum bring it inside and top it off every 6 months, but really use it up once or twice a week to charge all your devices! It can double the service life, per Noco themselves

[davidlj]

Used it for the first time ever today on a stone dead Defender. Started on the first try. Great product!