Mini jump starter

[last fairlane]

Hi all
Has anyone seen these mini jump starters
I was at the market on Sunday and they were selling these for $149
they are about the size of a packet of smokes and can jump start a V8
as well as charge up your I phone and laptop
to my mind thats impossible but hey
who knows what technology is out there (nano lithium polymer battery)
Ive seen the youtube videos but
any one tried this jump starter out
John

[Crazy Dazz]

The critical issue is Amps. If your car's battery is just below the critical level, then you could probably "jump" it with a torch battery. But if its dead flat and actually sucking charge, then you need a massive set of leads to feed in enough current.
Some of the modern jumpers and chargers use a capacitor, which in theory is capable of delivering a massive surge of current for the few seconds long enough to start a modern engine. BUT you still need a hefty set of cables to carry that current.

[Itsme]

Hmmm, maybe but I recon you only get one chance at the turn of the crank otherwise forget it.

Probably good for a motorbike or small engine egg beater car.

[davenl5l]

my brother jump started a Harley at work with one the battery was that flat the relay wouldn't even click . he said it spun it over better than a new battery . he was so impressed he went straight out to the spare parts counter and bought himself one . ( he has been a Harley mechanic and auto elec. for 30 years )

[poppa smurf]

RAA uses these, I left my caravan hooked up to my car one day down at victor harbour (caravan fridge continues to suck power even though car is not running, must put a switch in one day).

the vehicle was so dead the door remotes would not operate......he stuck this little feller on and away she went.

he reckoned it was the best thing since pre pealed banana's......gets about 4 jumps out of it.

I will be buying one in the near future.

this is the one I seen (instead of making another post)....

http://www.ebay.com.au/itm/Super-Min...-/130683742208

[FormulaFG]

Can someone please put up a link to said devices?

[Road_Warrior]

Originally Posted by poppa smurf

this is the one I seen (instead of making another post)....

http://www.ebay.com.au/itm/Super-Min...-/130683742208

Yeah I think the type the OP is talking about is literally the size of a pack of cigarettes

The other type is the "Porta Jump" little white box thing you plug into your cigarette lighter.

[poppa smurf]

Originally Posted by Road_Warrior

Yeah I think the type the OP is talking about is literally the size of a pack of cigarettes

The other type is the "Porta Jump" little white box thing you plug into your cigarette lighter.

ah! okay, sorry, no experience with that one.

[MercurySilver]

i would be interested in the OP style if its the size of a packet of smokes
could well come in handy!

[simon varley]

http://www.batteriesdirect.com.au/sh.../mst-sos2.html
or
http://www.batteriesdirect.com.au/sh...gt2012228.html

never used them though, but we've got these at work which are pretty good

http://shop.peterstevens.com.au/XPSM...er-Pack/pd.php

[Itsme]

Originally Posted by simon varley

http://www.batteriesdirect.com.au/sh.../mst-sos2.html
or
http://www.batteriesdirect.com.au/sh...gt2012228.html

never used them though, but we've got these at work which are pretty good

http://shop.peterstevens.com.au/XPSM...er-Pack/pd.php

First two links I have reservations about jump starting big engines, the last one would do.....

[hoodedaxeman]

I have one of the small ones 'Exelite' brand.
Started my wife's car several times with it.
2009 Mazda 3. Car didn't even have power to turn the motor.
Started easily with the small jump pack.
Started my mates VH dunnydore with it as well 6 Cyl.
Very handy tool
Keeps the kids iPods and iPads charged on long trips in my old Positive earth cortina with no ciggy lighter jacks.
Has a torch as well

[XAVEE8]

And another one...

http://www.minijumpstarter.com/new-page.html

[Crazy Dazz]

Originally Posted by simon varley

http://www.batteriesdirect.com.au/sh.../mst-sos2.html
or
http://www.batteriesdirect.com.au/sh...gt2012228.html

Yeah hell no.
NEVER going to get enough current through those cables.

[Crazy Dazz]

Originally Posted by hoodedaxeman

I have one of the small ones 'Exelite' brand.
Started my wife's car several times with it.
2009 Mazda 3. Car didn't even have power to turn the motor.

In simple electrical terms, a "flat" battery is one in which the internal restistance is too high. So that once you try to pull the necessary amps, the voltage drops too much.

Lets say your car requires 400 amps at "12v" to turnover effectively and start. If your battery can only put out 350 before the voltage drops too low, then the car won't start. But connect a small jumper that can supply the extra 50 amps and the car will start fine.

However if your battery is so flat that it needs an extra 200 amps, then those dinky leads won't cut it.

[hoodedaxeman]

http://youtu.be/uRBrqUAzDAs
Try this link

[Franco Cozzo]

Originally Posted by Crazy Dazz

Yeah hell no.
NEVER going to get enough current through those cables.

Looks like 8BS wire, way too small.

Its only a small length though, it would probably start something small like a Fiesta.

[last fairlane]

Thanks for the replies
Im more confused than ever now
The guy at the market showed me the videos
of the V8 Torana the Corvette and the boat
but we all know what can be done to videos
I like the last one with the Mazda or whatever it was
he also told me it will run an LCD TV for about 3 hours
so do I buy one and just keep it in the glovebox
or forget the whole thing
and Dave that wasnt the style of starter
it was the little white one
thanks John

[poppa smurf]

no worries John, I had never seen that type before......

[Itsme]

I will stick to my RACV membership or the old trusty jumper leads saving me wasting money on a product that will probably fail after sitting the boot for donks......
For the amount of times I've had flat batteries in 40 years driving I think I needed RACV once & used the jumpers for others about 6 times.