I’m completely sold. I can’t believe it. I’ve heard a lot of bad things about these units but I’m convinced that they probably didn’t read the instructions on how to use it. Great video! You did a great presentation. Thanks!

You've got to be kidding. I've been carrying one of those massive jump units. I'll be getting one of these for every car now. THANKS!

As soon as you said 'I've been draining my battery for 2 1/2 hours' I 'bout near fell off my chair laughing because I knew exactly where you were going. I know this is a couple years old but I just got one of the current ones and I've been showing it to everyone and telling them it will start a car but I have no way to prove it. Now I can just show them this video...Thanks!

Seriously, I bought for half of the price of the NOCO GB30 a Stanley unit. Took it from Walmart directly to a stuck car of mine (I know that I should have charged the Stanley first, but I rolled the dice & gave it a go without a fresh recharge). Here's the real impressive part; my vehicle is a 1982 Mercedes Benz 5 cylinder diesel. Glow plugs are required to begin the 'start' process (Lots of battery power needed), then comes the burden of turning over a high 21:1 compression ratio diesel engine. Obviously both of those steps demand a powerful battery in order to complete the 'start' process, but this Stanley 'Simple Start' right off the shelf (and to my amazement) started the Benz ! Needless to say I recharged the Stanley as soon as I got home because this $45 unit is definitely a keeper...

I bought even a smaller unit called "Stanley Simple start Lithium-Ion jump starter" for $30 on sale from $60 at Walmart and it works every time. I have a 1997 ford E-150 van with a 4.6L and i drained my battery by leaving the lights on overnight i came out in the morning battery was completely dead i plugged in the Stanley jump starter in the cigarette lighter...yes you hear that correctly, you can plug it in to the cigarette lighter or directly to battery and after about 5 minutes to 8 minutes my van started right up. I have used it about 15 times already on my car my girlfriends car and friends cars and it works every time.When you charge it, it holds power for about 12 months and you can jump start a battery about 3 to 5 times out of one charge. I am simply amazed at this little thing. If you go look at reviews every single person is happy with it i have not read a single review where someone said it didn't start their car. The thing is simply amazing.

Only one invention I could think of that's better than this........"Sliced Bread.!" Been searching the net for real world videos on this product but mostly found Manufacturer videos. Amazon has it @ $130.00. I had an old-school jumper pack that lasted several years through all kinds of weather and never failed to jump start a vehicle. I paid about the same so I can't help but wonder a bit about this little jumper performing the same. Thanks for the info.

Thanks for this review!! It's Summer, but I left the lights on in my car and today, boom, totally drained. I'm off to the store to pick one of these up. Only $119 USD. Thanks!

If your battery fails to start your car, then either your battery is very close to needing a replacement OR your alternator is f**ked...... If you pay attention it's easy to spot when a battery is nearing it's end of life. Replace the battery or fix your car before it becomes a problem, don't just keep jumping it. Your not saving money by continuously jumping your dead battery, your just delaying the inevitable and exposing yourself to the possibility of winding up stranded 200 miles from home in the middle of nowhere.

Fantastic video. Great job on audio. Hats off to your perseverance.

that small thing can give you that power!!!! amazing

I would get one that can handle the freezing cold weather. You need power. Spend the extra. You can Google the best for winter weather. It may be more money but it’s essential in the winter.

Don't throw your jumper cables away! I have one of those booster-battery/capacitor type starters ( 200/400 peak ampere ) and it does work as long as you remember to keep it charged. I used mine successfully several times on my own cars over a couple years, but then when a damsel in distress needed a jump, I ran over with my little booster-battery only to realize I hadn't charged it in several months and it didn't have enough juice to get her car started. I ran back, got my truck and jumper cables, and for whatever reason her little Toyota took more than ten seconds of cranking to finally start with the jumper cables attached. Point is that if the persons' car is in excellent condition except that the battery is dead, then fine, a fully charged little booster-battery will work, but if the sick car needs a little more than a quick jolt to get it started you are going to need the continuous supply of a strong battery and quality jumper cables to get it started. I believe that the trick with the small booster-battery jumpers is that they are half battery and half capacitor bank which can provide a lot of power for a short time, but capacitors will not hold their charge reliably over time, so they have to be recharged more often. My booster-battery claims to have 7 seconds max of starting time with most motors, but warns it is not for large diesel motors. I think it is safest to have both: cables and a booster-battery. If your car is stranded and you are isolated, then ( if charged ) the booster-batteries are a life saver, but if you are trying to start your car or someone else's that is being a bit stubborn, you are going to need two cars and jumper cables to get the job done!

I liked my first one and bought another one for my auto garage.. Nice unit..

11.5-12 volt's is NOT "dead as a door nail" to be fair. It might also be fair to state that the PCM in that vehicle automatically kills the headlights if the battery goes below 12 volt's. I could be wrong on that last statement but I highly doubt it.These products may boost a low amp draw 4 cylinder car with a low battery, but a vehicle with a truly dead battery, I would have to see to believe.The 400 amp claim is horribly false.

I have a Matco jumper pack. Multi-function jump starter and power pack with an 18,000 mAh battery 450 cranking amps and 900 peak amps in a small, portable package. will start a semi truck!

Everyone is talking about the winter what about the summer in the desert states. It's 110 degree's plus outside & 200 plus inside a vehicle with all windows & doors closed. Will this thing explode?

Great review their big guy, I just ordered the GB40 so I can start my Triumph rocket3 motorcycle, by the way how much did you pay for your GB30.

Another cool thing about these they can be used for charging cell phones etc (anything usb) as well.

Bought the same GB30 myself earlier this year, yes I can assure other viewers this is no trick and can really jump start cars :)

I got one and had to jump my chevy 3500 with a 6 L gas. very low battery and 14 degrees F. It took a minute hooked up before it would start but it did it. it will charge devices through a usb plug also. So far so good.

Neat gadget for the glove box in mom's grocery getter but it's just a battery that will require regular charging as well. I doubt most people would keep up with that for long. Keep the jumper cables just in case.

I'll NEVER.. give up my 2 gauge cables.

Just bought mine, it works great... I just jumped started my Range Rover its worth the Money very well build... I really recommend this unit.

This is an awesome product.

Problem is is that those batteries last about 3 years, then you'll have to buy another one for another $150. Cables are better or when they improve the battery technology down the line

I'm waiting on the GB150 coming out in June 2016 gota get one!

Oh if you do buy jumper cables make sure you have a good gauge of wire on those cables. The smaller the number the better2/4/6 no larger. The number two is best. Gauge is very important when it comes to jumper cables. Also make sure you have a good clamp nothing flimsy. 😁

I like this guys videos !! Most modern cars today turn lights and all electrical accessories OFF automatically after exiting the vehicle in a pre-determined amount of time, so a 2 1/2 hour drain on an automobile battery is a practically inconceivable OR a poor scenario to put this device to the test ! With that said, automobile batteries do die AND the most plausible scenario of electrical depletion on car batteries is COLD WEATHER !! I would like to see this device operate and work in a -35*C to -50*C environment with the device being left in the glove compartment exposed to these kind of temperatures !! That's the true test for me to consider investing in such a device !! Not Cheap and I can get a CAA (Canadian Automobile Association) membership for this kind of money where they come out to service your vehicle wherever you are ! Nice Video as usual carquestions !!

The biggest problem is keeping these things (Noco Genius Boost, Car Rover, and similar) charged, ready for the rare occasions when a battery dies. No battery (in a booster or whatever) holds a charge forever and, without a charged battery, these things are useless. That's why I'll sick to easier, maintenance free, jumper cables. The exception might be short duration trips where other vehicles might not be around, but, even then, I'd rather carry a larger, more capable, battery booster/starter - or just keep the vehicle battery in top condition so it doesn't need to be jumped.

That's really slick, but the cost is prohibitive. At Harbor Freight, on sale, you can get a portable jumper, that can also be used as a 12v power supply for other things, and keep it in your trunk, pulling out occasionally for charging, for only $40 on sale.

You can completely disconnect the battery from the truck, and put the booster in bypass and start the truck, so you know this thing is powerful, just be sure to have the cables connected correctly because it also overrides the cross connect safety.

Can you add a link where we can buy this booster pack ? Thank you

Give it a “10”! 😊

wish you left a link for that booster

NO GOOD IN COLD WEATHER and as you said pricey little thing

I used a GB30 for nearly 3 Years now, and i started a lot of engines with it. Of course, the rating (here 400A for the GB30) is bulls*it, or maybe it means the peak-power for an split second, but it works for small and medium engines (~ 3-4 liters) very well. Even without a working battery in the car. (if you have a dead battery with nearly 0 Volts, you better disconnect it before using a booster - but dont forget to disconnect the booster immediately after the car runs, otherwise the alternator/generator from the engine will make damage to the booster-battery)

Yes this is a better booster, jumper. It's Li technology. Most other boosters will go bad on you because they are lead-acid technology. They will slowly drain out on you in a month or two. Unless they are regularly charged, they will be dead when you need to use them. Worse yet, they will freeze and kill them selves if they get discharged in the winter. Li will be about 70% after two years. Only need to recharge once a year or after a use. May cost more but will be ready to use when you need it. A person may go through three or four other jump-boxs, may not work when needed before problems develop with a Li-ion jump-box. The Li box will be worth it because it will be there when one needs it.

This sure beats those BIG booster packs you got a few years ago, that looks more like a briefcase, and weighs like your toolbox. Can you get one that fits in your wallet? I don't carry a purse! Ha ha ... I'd keep it under the passenger seat and charge it occasionally, along with all the other stuff I have to charge "occasionally"... :( How long does it last if you don't use it? I have never needed to boost my car, so mine just sits in the boot for the winter or on the shelf in the summer...

I have one too, POWER FOR ALL US Design!

Great Review....I own one ,,Its got me & Others out of a jam,,+ It can ReCharge a Cell phone with a simple adapter.....

Hello Carquestions, did you ever give the pocket battery booster a 10/10? Did it last a long time over the winter? Thanks

It's a good idea I just doubt this thing would hold a charge without continuously charging during the winter time. I live in one of the coldest places in Canada and my phone with a lithium battery the same as what's in here goes dead from a full charge after about 8-10 hours in -35C so I doubt this thing would hold a charge for weeks or months in the glove box.

Really useful. Apart from no description of which make it is.

dear, what the video editor you used to make the subtitles?! good video, thanks!

is it able to start diesel engine?

I got one (different brand) from eBay, was about 70 USD and I was able to help start up a car to 3 different people, one was a large SUV. So yea, great tool to have in the trunk. They also allow to charge smartphones and laptops, they come with all sorts of connectors. Just be careful and never leave it in direct sunlight especially in the heat, or it might explode.

Great demo.... You said the batt was a year old. When draining one down like that you don't do your batt any favors especially one as new as that one. Can wrap the plates? I may get one of those chargers. I still have the cables in the trunk.

Nicely explained, should make it your full time job reviewing product, you're good at it.

my late husband often needed a boost to get started, if you know what I mean. got him some of that Viagra and it worked. not sure if putting Viagra into the cigarette lighter will start the Rambler Classic tho.....

Rockford Power Boost jump starter RFD 8005 $50.00 online. Works great. Just tested mine tonight.

Not a dead battery. Leave the headlights on overnight. Or at least 8 hours as though you went to work all day. That is what "dead battery" means.

Ugh. all the *negative* Nancy's! Thanks for the review, sir! I came here after watching an infomercial for the Mini Max!

it might be better to replace the lead acid starter battery with a lifepo4 80ah battery as it will get regularly discharged every time car starts rather than stored at fully charged voltage for long periods like a jump starter battery that wont get used often

11 volts and no start? My old '66 Chevy would start if the battery was anywhere over 9! Wow, things have changed a lot over the years.

these things really work,better models out now check the Project Farm comparison of all jump starters

As soon as the engine spools up and running do yourself a favor shut of the engine or have a friend pull off the cables you will fry the unit from the push back from the alternator current.

Not a good thing to drain your battery that much , but very good demo inspite of all the negative comments, thanks

What's this aboot? A booster or a jump starter? In the US we say "JUMP START" and in Canada, is it "boost"? To boost a car means to steal it, eh!

another problem is the starter common in most cases

u shoule have a link so we can buy it :)

Great video

have yet to see video of these things tested on a cold morning with a cold motor (sub zero) which is the most common condition when you get a dead battery. The kind of situation when even putting jumpers on wont start the car right away...you have to wait for the car jumping yours to charge up your battery a bit before your car will start. These jumper boxes use the same type of batteries RC hobby grade cars/trucks use. Given the units size, the most it could have is 3s 11.1v (nominal, 12.4v fully charged) and maybe 10,000mah-12,000mah...though I would bet it is more like 6k-8kmah. That would be enough to run a 540 sized brushless motor in a rc car weighing 5-8 pounds at 50mph for an hour or so.

Hi, sir , we have a new models car jump starter which with Air Pump and Smart Clamp . can you do a reviews for us ?

Another consideration is your potential to need a "jump." Living in Florida I have never found a "jump" to be helpful. The last four vehicle batteries (on several vehicles) that died were not rechargeable. They also died suddenly without warning, fortunately most were parked at home. My wife had a battery die while driving her Toyota. I was concerned it was a faulty alternator but it was the battery. I guess with extreme cold weather or someone inadvertently draining the battery a jump/boost would be nice.

Hello. i am considering buying the Noco booster and was curious how it has held up since this video. any long term use or durability concerns? thank you in advance.

It is not even fun until you get down to 9 volts. LOL

how long does the portable charger last before it needs to be charged?

I think il stick with my ten dollar jumper cables and "Hey will you help me jump my car for 5 bucks" if needed.Great idea but deff not worth the buck for the one time a lifetime you need it.If you need to jump your car often then its time to change something on your car lol.

"No more cables...." Uh, sorry, I just saw you attach a couple of cables... Or did I misunderstand that part? On the other hand, I won't leave home without it!

On sale at CanadianTire for CAD$120 this week :)

How long can the pack hold a charge until you need it? 6 months? 1 yr? Will it stay charged Until you need it?

Bring that bad boy up here to Minnesota for a real winter (we get -40 to -100), not those silly winters.

I wont to see a jump starter test at winter !!!

Thank you

THANKS

would it start a Deisel engine ? and upto how much i mean upto what size engines ? thanxxxxx

"Throw away your booster cables" - Absolutely NOT! I don't care how well a portable battery may work, it can fail. If that wasn't the case, every car would come equipped with the never fail battery setup. Yes, some gadgets, on the market today, can be useful. However, IMO, it's always best to have a good backup plan. In this case, a quality set of cables "to jump start a truck", when the gadget fails.

while he talking the thing is charging the battery lol

Could you disconnect the battery terminals and just start from the portable jumpstart pack? :)

How long does it take to charge? How long does it hold its charge? and therefore how often do you need to charge it ??!

Now that you've destroyed your battery testing that thing I guess you'll be needing it.

The one thing I would not do is killing a perfectly good battery. The battery life will be cut shorter. All auto batteries have a memory built in to them. So you could have 1/2 life in this case.

You should get an amazon affiliate account and get a kick back on all of these they sell. Having said that would you put the link to this in the description. Maybe an update comparing different brands. Thanks!

theses are great, got a similiar one at wallyworld for 35 bux

try boosting with it in -50 when you actually need a boost in the winter.

Where'd you get it?

You should have shown clearly how it is connected to the car battery terminals. Also, how it is re-charged for subsequent use.

Just buy a jumper box they cos half as much. You just need to charge them every few months.

How much do they cost

Too many things inside your engine bay. Safety glasses should be a "must" anytime you need to work "under-the-hood". Charger seems to work.

»got the voltage but not the amperage to do it« ... please don't ... this hurts so much! next time you say this, you'll get fined for violating Ohm's law.

There's is a guy on KZfaq named "bullshitkorner" He tests 3 of these so called 400amp chargers. They all crash and burn.

you did not measure the battery voltage after plugging that thing.

Now leave the headlights on overnight and try it. I don't think it can do it.

Yea that is just what i want to carry around in my pocket all the time looks a little bulky for that.

Nice

that's all fine and good but the real question is... Will it still be able to start you car after it's been sitting in the trunk or glove box for couple years.... all of these portable jumpers will start a car when fully charged. But when you're stranded on the side of the road and have no charging outlet and this thing has been in your trunk for couple years because you simply haven't had a need to use it and forgot all about it. Will it still start a V8 truck.

11.5 volts is not dead as a door nail. Nice gadget to have though.

Why not have a second battery in the trunk?

Woohoo :-))