NOCO GB70 Review: Portable Jump Starter for Big Engines (With One Potential Drawback!)

The #NOCOGB70 will jump various lead-acid batteries, including absorbed glass mat (AGM) batteries. As a more muscular unit in NOCO's product line, the GB70 will handle gas engines up to eight liters and diesel powertrains up to six liters, including late-model HD trucks from the Big Three. We like the GB70 overall, although we wish the location of the charging bank and flashlight were reversed. It's not entirely a deal breaker for us, but it's something to be aware of if you intend to purchase a unit like the GB70.
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[@Ekatjam]

I purchased the 15700 GB70. After using it twice and the warranty expired, the unit refused to turn on, the flashlight worked and showed full charge. I contacted NOCO and the guy who got back to me freely admitted that the power button has had "soldering issues". He was kind enough to send me a 15% coupon on a new unit. I now own the most expensive flashlight I ever had.

[@Automoblog]

Thank you for the feedback and for sharing that. It's helpful insight as other viewers to our channel are looking to make the most informed purchase decisions.

[@DieselTruckin]

Started my completely dead 6.0 powerstroke. Had to use manual override and it took a few attempts but it did it. I’m happy with it. It’ll be there to assist on cold starts.

[@Automoblog]

Thank you for sharing this and for watching our video!

[@TechSavvy.]

I've had my GB70 booster now for a year and I've boosted more than 10 times on several different vehicles - all on the first charge. I've never found the cable orientation to be much of a problem. There is more than enough length to connect the cables and still have the light pointed at the terminals. I don't know why they chose to reverse the cables, there may have been some technical or space-saving reason, but it's never been a problem for me.

[@Automoblog]

That's awesome to hear and thank you for your feedback. That was our guess too on the cable orientation - likely a technical or space saving/packaging reason. Thank you for watching our video!

[@Big-G484]

Yeah, thanks I already fixed it. It was something wrong with the charger internally. Had to take it apart and fix it.

[@toddjenest3212]

Introducing Murphy's Law. When you need it most, it will be low power or dead. LOL

[@Automoblog]

Like clockwork 😂

[@pete5534]

If the flashlight orientation causes you grief, maybe angle it upward and use the hood/bonnet to kick the light back toward the engine bay - the flashlight is extremely bright.

[@Automoblog]

That's good feedback, thank you!

[@OMGWTFLOLSMH]

It's a stupid design mistake that they need to rectify.

[@caucasianrize53]

I am thrilled with this product and have already placed an order for one. I have a question that came to mind after watching your instructional video. In the video, the clamps are attached directly to the battery terminals. Isn't it standard practice to connect the negative clamp to the vehicle’s chassis ground instead of directly to the battery terminal? Could you please clarify if there is a specific reason for the direct connection to the battery poles, or if connecting to the chassis ground is also acceptable with this product? Thank you !

[@Automoblog]

That was partly done in the video to show how the BMS (battery management system) won't allow you to have any sort of spark or reverse polarity ... essentially, the GB70 isn't active until it's hooked up properly - or put another way, a novice who doesn't have a lot of experience with cars can't accidently use the jump starter the wrong way as the internal software prevents them from doing so. I don't specifically know about the chassis ground, but the owner's manual recommends connecting directly to the battery terminals itself: www.manua.ls/noco/genius-boost-hd-gb70/manual?p=3 When I was a service advisor back in South Dakota, we had a jump box under the main service desk. If a vehicle needed a jump in order to get it in the bay, we would always attach right to the battery terminals directly. However, other sources support what you are saying about the negative clamp: www.midtronics.com/blog/whats-the-right-way-to-jump-start-a-battery/ I hope that is helpful. Thank you for watching our video. ~ Carl

[@caucasianrize53]

@@Automoblog 💪

[@sengx]

Silly question but is it possible to have too much power? If I used this gb70 on lets say, a snowmobile to jump start it.... would the 2000amp cause damage? As 2000amp jumpstart would be overkill for a powersports machine

[@Automoblog]

Yes, this unit would be overkill . . . however, the internal battery management software should recognize the battery it's connected to. Before we reviewed the GB70, we met with the NOCO product development team who said that the software was designed to prevent the GB70 from "hitting a smaller battery with everything it's got," but rather to only rely the power necessary to start the battery you are attached to.

[@sengx]

@@Automoblog awesome! Thanks for the detailed answer!

[@TechSavvy.]

The 2000A is only a maximum possible current the unit can supply. It's similar to the Ah rating on a battery. The 12V part is the important number. As long as your battery is 12V it will work OK. The starter will draw as much current as it needs to start - starters on smaller engines draw less current. You can use this to power 12V tire pumps, boost motorcycle batteries and more. I've used mine on all of the above. The USB output can also be used for cellphones.

[@sengx]

@@TechSavvy. awesome, thanks for the detailed feedback!

[@Big-G484]

I have a wet cycle battery and I went to go put on the charger and I put the negative to the negative and the positive to the positive and it’s showing the red reverse light but everything is hooked up right what would be the cause of that? Is the battery no good

[@Automoblog]

Hmmm .... if the red light on the GB70 is solid then it's reverse polarity. If it's blinking, then it means the internal battery is too hot and the GB70 needs to cool. Usually, if your vehicle's battery is bad, the "Boost" light on the unit won't come on at all. How old is your battery? It might be a good idea to just replace it anyway if it's really old.

[@catherineodriscoll5406]

can't get my 12V OUT to work. do you have any advice? everything else works, including 12V IN to charge

[@Automoblog]

It might just be a defective port. See if you have any luck here: no.co/support/how-do-you-submit-a-warranty-claim

[@nxcess9046]

Thanks for the vid! I have a 5.0 Jag w/ ultragel batt. I'm gonna grab this one vs. the gb40

[@Automoblog]

For sure, the GB70 will be better! Thank you for watching our video.

[@lyaboy]

works , but i dont think it does 40 jumps. maybe 5? i have one and i have to charge mine already and i swear ive barely used it since ive bought it . went to go help someone and looked dumb lmao . took 7 hours to charge it with usb .

[@PaigeC.94]

You don’t charge it with a usb that’s your fault

[@richardcranium2059]

@@PaigeC.94 - Not true, it comes with a USB cable to charge it via PC desktop or a laptop, only it does take the stated 7 hours to get to full charge.

[@TacoDaddy-mr8ig]

Can the gb70 be used on small vehicles?

[@Automoblog]

Yes, it sure can. The GB70 will handle gasoline engines up to eight liters and diesel powertrains up to six liters in displacement, including late-model HD trucks from the Big Three. That said, you will be fine to use it on a smaller vehicle. There is also an internal battery management system (i.e., software) that tells the NOCO GB70 to only deliver the juice required by the battery needing a jump. Essentially, it can tell the difference between a lawnmower battery and a truck battery and adjust its power delivery accordingly.

[@lisamarshall30]

I'm torn at the moment. I have a solid red error light, indicating to switch the cables. I know the cables are correct though 😭

[@Automoblog]

That is odd . . . just double checked the owners manual hoping I might be able to help you, but yeah, the solid red light is an indication of reverse polarity. Did you register it? Try this email for a customer service contact: [e-mail] ~ Carl

[@danpena7922]

I just ordered one, it's pretty stupid where they placed the lights.. SMH.. wow..

[@Automoblog]

Indeed . . . that was our main issue too.

[@Automoblog]

That was our main issue with the unit too.

[@hugogarcia292]

This works amazinf!

[@immortalsofar5314]

I got one that looks like it's a return and it didn't come with any charging cables or anything other than the main box. Should it?

[@Automoblog]

Yes, it should come with a 40-inch micro USB cable for charging and an XGC extension cord with a 12V male and female adaptor. Using the micro USB cable and a USB wall charger, it takes about three hours to charge fully if the internal battery is completely empty.

[@immortalsofar5314]

@@AutomoblogThanks. At least now I know what to get and how to charge it!

[@RR-ie5ll]

MAKE SURE KEY IS OUT OF IGNTION

[@lookingfreshdetails3150]

I assure you this booster will NOT jump start a 3.0ltr turbo diesel battery! I have both this particular booster and a nissan elgrand what won't jump start with this booster pack

[@Fordgroup00]

Did you try jumping it w/out the battery? People don’t realize how much power a dead battery takes

[@lookingfreshdetails3150]

@Joe_Brown99 No i did not try jumping it without the battery. But I'll report back when i buy a replacement battery. My argument is noco claim this booster will jump a dead battery and that's untrue.

[@Fordgroup00]

@@lookingfreshdetails3150 Ah, right on good point Yeah most jump starters won’t go through a bad battery because usually the connection inside gets toasted and most people don’t realize that.

[@KP-vr6ft]

I jumped my 6.7 diesel more than a couple times with this unit

[@lookingfreshdetails3150]

@KP-vr6ft I assure you it won't jump start my battery it's completely dead! But as stated previously this brand claims this booster "will jump start a dead battery" and clearly doesn't.. Fully charged unit (booster) Will immediately reactivate my alarm, and give me ignition lights & glow plugs. Try and start the engine and all you'll hear is clicks from the dead battery, leave the unit boosting the battery for maybe 10 minutes with everything turned, and you'll end up with a flat booster pack and no engine start. I never needed this booster when it was purchased. But rather have it and not need it. Then need it and not have it.. Now i need it and it's completely useless! I'm happy i found this out at home instead of being in the middle of nowhere..

[@DHunter_47]

The Kingdom of God is at Hand John 3:16 King James Version 16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.

[@auntychopchop4707]

What has god got to do with dead batteries? . If he existed ,would he be able to resurrect a dead battery?

[@Wastelander13]

Yeah. And he loves the world so much that he gave it the NOCO power boosters. Thanks so much to him. :)

[@GK-qb1fo]

Can you run the car on NOCO GB70 lithium ion jump starter without a battery, and what is the longest time you could do it with the NOCO GB70 lithium ion jump starter (if the alternator is not working, so you could drive the car to the shop if it is close), if it work I will buy it. kzbin.info/www/bejne/hpu7gKOobtx5qck Drive with ONLY a Jump Pack? (Car Battery Entirely REMOVED) kzbin.info/www/bejne/hIKxdIltnduIgZY Quick fix to bypass a broken alternator

[@plushbraap9156]

I had to do this yesterday, we got about 15-20 minutes running time in a efi v6 .

[@Fordgroup00]

@@plushbraap9156 Then your alternator is dead

[@sunilparas6606]

Terrible product. Does not last.

[@Automoblog]

Sorry you have not had good luck with it! What issues did you have? Thank you for watching our video.

[@OMGWTFLOLSMH]

The Amazon reviews don't share your experience. 80% 5 star and 11% 4 star reviews.

[@zarroth]

@@OMGWTFLOLSMH No horse in this race, but amazon will not allow all reviews either. I put a negative review up on a product once, that was completely reasonable since I didn't hate the product, just found it to not live up to the advertisement and that review kept getting blocked. Amazon, like a lot of social media companies, does a lot of shadow banning.

[@Rising_Phoenix_2020]

Which one did you get? the 1000 or 2000?

[@JasonParham83]

​@@zarrothyup. Amazon reviews are BS. I ordered a product and was sent an inferior less expensive off brand product. I posted it with pictures and Amazon blocked it. The only way to leave a negative review is to leave one without words.