Which car battery booster/jumper?

B0bbyEwing

Bigwheels1111 said:

B0bbyEwing said:

Had to use it a few times now but today was from the lowest voltage: 10.9v

Wouldn't start it first go.

Tried to start the car - nothing. 
Connected the Noco - wouldn't work.
Tried again - fired up.

I'll reach out to the manufacturer to see if I'm maybe doing something wrong but also posting here as I imagine I'd get quicker feedback in the meantime.

Does the Noco have a boost button.

A lot of jump starter will not work with low valtage.

The boost button overrides this issue.

It does. Although I've actually only just Googled that now after your post.

It mentions being at 2v though so if I understand correctly then it shouldn't need a boost from 10.9v?

QrizB said:

B0bbyEwing said:

Had to use it a few times now but today was from the lowest voltage: 10.9v

Have you considered fixing your car?

No I haven't. I thought it'd be best not to.

BlueonBlue

Follow Bigwheels advice on becoming familar using the Noco booster feature .
When not enough voltage is detected in the battery the boost feature over rides that .
Dont buy one without it cause some dont have the boost feature like Halfords ones that cost £60 .....you can get a Gooloo 3000A for £30-35 delivered

Actually its good use a jump starter often so your practised at it for different senarios.......as thats what  they are for..... the unexpected .
Better to have one and be prepared as a jump starter gets you out of trouble.
 It buys you time to get a battery tested /replaced or alternator tested etc not to mention gets you home safe or to a garage from around £30-80

Vehicals electrical demands have increased in cars so during the coldest months thats when your very likely going to need a jump starter also higher compression diesels need more cranking power .

Having a jump starter with a booster feature is the same as having a spare wheel and jack and knowing how to use it .

born_again

Then just remember that you need to keep checking booster is charged up.

B0bbyEwing

born_again said:

Then just remember that you need to keep checking booster is charged up.

It was fully charged. 

I've reached out to NOCO to see what they say. 

BlueonBlue

If Noco dont get back to you .....its easy enough to google a AI answer and also click on a number of video links for further info .
With electronics user error is high and knowledge low so it pays to practice using it so your not left stranded .

B0bbyEwing

Response:

Thank you for contacting NOCO support. I am sorry to hear you were unsuccessful on the first attempt.  The GB40 unlike our GBX series should not be left connected for 30-60 seconds before attempting.  As soon as connected and the charge lights chase, you should attempt the jump start.
If you hear a relay clicking on the GB40, then the GB40 may have been losing sight of the battery.  The Boost units are designed to detect a battery and apply the appropriate power for jump-starting. If the vehicle battery is below 2V, the Boost will not apply voltage to the clamps. This is part of the built-in safety features. You can force the jump start current to the clamps by using Manual Override. Use Manual Override cautiously, as it also turns off the reverse polarity protection and spark protection. You can enter Manual Override by pressing the red "!" button for three to five seconds.
It doesn't sound like you did anything wrong, and you were successful in jump-starting your vehicle, so the BOOST eventually functioned as intended.

So aside from leaving it up to approx 1 minute to turn the key I didn't do anything wrong.

And the battery was at 10.9v not 2v.

BlueonBlue

If the jump starter cant detect voltage ......you need to use the boost  or overide feature thats what they are saying and is probably what happened .

B0bbyEwing

Why would it not be able to detect voltage? 

It can't be because it was too low. 

So my only guess then is that it maybe goes in to some kind of standby mode if you don't attempt to start the car in less than 30 seconds. 

Only way I suppose I'd find this out is if it hits 10.9v again & I do the same but immediately start it without waiting. 

BlueonBlue

Its how jump starters work.......if the voltage is too low the cheap ones without a boost feature wont work at all.
Halfords sells them for £60 quid ?
Yet they wont start a car if the battery is dead flat cause they cant detect enough voltage !

Proper jump starters with the boost feature overide the low voltage detection  and some minor safety features and start the car .

Your battery either had lower voltage than you thought or the jumper needed to detect ..., a bad connection ...who knows or you exceded the starting window in seconds or both .
It doesnt matter your all good with a Noco .

Loads of points or varibles come into it.
When you buy the upper range jump starters you spend more money and you do alot better .

https://www.amazon.co.uk/dp/B08WZFPXFM?maas=maas_adg_9822EE4B1812627E0D239AE2CB88A64E_afap_abs&ref_=aa_maas&tag=maas&gad_source=1&gad_campaignid=1738482619

https://gooloo.uk/products/gt6000?variant=43521617756239&country=GB&currency=GBP&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gad_source=1&gad_campaignid=22885317019&gbraid=0AAAAAobcMmgYQtoSMvcyGvj19w-bEOjAm&gclid=CjwKCAiA7LzLBhAgEiwAjMWzCCu9wEdB4OjFZgJfUiX-W8zypahvSLcX5Dw22bLTvxnhOwf4IACVPxoCnOAQAvD_BwE

With lots of practice using any jumper you do get better at doing it like anything .....you then realise the items limits of what you can and cant do .

B0bbyEwing

The Noco I have is still in the returns window until the end of the month. Would you guys return it & go for something else or stick with it?

Had to use it again today, bearing in mind what Noco responded to me with.

Car was on 10.5v as shown on 1) FM transmitter 2) OBD2 reader 3) multimeter. So if they're wrong then all 3 are wrong.

So not 2v either. Should have no trouble starting it right & not need the boost feature either right?

Once again it refused to start it on the first attempt.

Bit sluggish on the second attempt but got it going.

I'm surprised because you see supposed 'dead battery' videos on YouTube & they fire up first time no problem. Again, I say SUPPOSED dead battery videos.

So it's whether to stick with it because it did start the battery ..... eventually.
Or get something else with seemingly higher ratings, even though this Noco GB40 is supposed to be big enough for a 2.0ltr diesel.

I'd have to go in to my orders but I think this was about £60-£70 in the sale. I'd max out about £100, so that GooLoo would be doable but the first link would not. I'm not willing to pay that much.