KMASHI Force K2 Car Jump Starter 8000mAh Mobile Power Bank - £25.54 @ GearBest

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KMASHI Force K2 Car Jump Starter 8000mAh Mobile Power Bank £25.54 @ GearBest

£25.54 GearBest11 Jan 16

Source: HotUKDeals | Deals > All categories

Opening post

NeoTrix

8 Jan 16

Something different!
Some great reviews on these and similar units (higher priced and similar specs) You can charge your device from i as you'd expect, with a max output of 5V 2A

It has a torch built-in with SOS flashing functions (Can use that to show the wife which pub i am outside of ;))

AND... You can jumpstart your motor from it. Takes 4-5 hours to charge and you are set to go.

Charging time: About 4 - 5 hours
Input: 5V 1.85A
Output: 5V 2A (max)

Package Contents : 1 x Car Jump Starter Power Bank, 1 x Storage Battery Clamp, 1 x USB Charge Cable, 1 x English User Manual

● High capacity battery of 8000mAh is adopted for fast charging
● Support auto 12V emergency jump start and entirely replace the included battery for a car startup
● It also supports general mobile phone / laptops charging and completely can be used as mobile power bank
● High luminance and multi-modes LED light (Include keep the light, flash, SOS signal)
● It is the ideal choice for night shift workers, overtime workers and many others
● Four levels of power display indicate battery status, real-time recharging reminders, automatic shutdown under no-load condition
● Multi-protection, safer to use
● Over-current protects the device from overload, making it more convenient and more energy-efficient
● Persistent current: 80A
● Peak current: 200A

Top comments

CoolElectronics

8 Jan 16 7 #1

Good luck with that...........

the-bunker

9 Jan 16 6 #19

I had one, but it needed charging up - so I charged it in the car, but it flattened the car battery, so I used it to start the car. Brilliant.

forcedv to johankirchner

9 Jan 16 5 #16

You spout similar BS on Gearbest threads yet you continue to claim to buy from these companies..... why?

Why not learn from your "experience" and pop down to B&Q or Maplins for your electronics?????

jtd

8 Jan 16 3 #5

Mate has a similar one, sorry don't know the make but its an absolute brilliant piece of kit. My 2.5 diesel voyager jumped off it no problem whatsoever.
Why all the haters?
He buys and sells cars and uses his all the time.

Latest comments (54)

kennypowers2012

29 Jan 16 #54

i bought this received it and I am blown away! works amazingly. i have started a 2.6ltr petrol car with a complete dead battery (not even power to light led on alarm). also started a 1988 hymer camper with a big old 2.5L diesel lump in it. buy it you won't be dissatisfied

itsjonboyok

9 Jan 16 1 #15

I paid about £90 for one of Amazon 5 stars with a lot of reviews
I am a farmer and it has started a navara from completely dead and a 5litre tractor

Besford to itsjonboyok

9 Jan 16 #38

You're not a proper farmer if you haven't got a Landie!

LizinGib to itsjonboyok

26 Jan 16 #53

Hiya. I NEED one of these but it must be reliable. What type did you get please?

johankirchner

11 Jan 16 #50

What a cheap item from China, do you work for them to post this cheap stuff? This stuff won't last 2 days, but Chinese, buy twice

alphamusic to johankirchner

11 Jan 16 #52

I understand your point, but I would rethink how you phrased that. Good luck buying almost any consumer electronics that aren't Chinese. Of course I agree that a lot of off brand Chinese stuff is a waste of money.

alphamusic

11 Jan 16 #51

Agreed, but they are both 8000mAh Force K2. The description was added to Amazon by a third party seller, so I would guess the discrepancy in peak cranking power is down to usual Chinese spec inflation, I would be very surprised if they were different models when the product name and mAh are the same.

johankirchner6

11 Jan 16 #49

will only work for 2 days then you have to buy a proper item, buy Chinese, buy twice

OB1

11 Jan 16 #48

This Amazon one might be a better bet, for £4.50 more. Doublet the current supply, same capacity, plus prime delivery and the advantage of Amazon service over gearbest.

http://www.amazon.co.uk/8000mAh-Starter-Current-Emergency-Ultra-bright/dp/B012SXUK24

alphamusic

10 Jan 16 #44

Here are some reviews on Amazon, if they can be trusted, it looks like it works in the real world:

http://www.amazon.com/gp/product/B015KFGV52

OB1 to alphamusic

11 Jan 16 #47

The Amazon listing states 400a peak, the listing at GearBest states 200a peak. Quite a difference!

JeffsterRule

9 Jan 16 #33

Can you still use these to jump start, i tried a battery booster on a ford and it lit up like a christmas tree. AA said should not use these on modern cars.

crazylegs to JeffsterRule

11 Jan 16 #46

Yep a sure fire way to keep them in business!!

OFI

10 Jan 16 #43

Don't think i'd trust this at all. The other cheap power banks this company (and other similar chinese based companies) sell are clearly telling some lies about their specs (too high capacity for the size, cost and weight). Don't think i'd want to be drawing such a high current from such a device.

Feel a bit safer buying from a UK supplier for more.

The people here saying they've "had one of these" was it actually this particular one? or something similar with CE markings on etc

pibpob to OFI

10 Jan 16 #45

I tend to agree, but don't put any trust in CE markings - they are but a marking which all manufacturers apply, whether they comply or not.

marty-401

9 Jan 16 1 #24

This might sound a little crazy but why not put the money towards fixing the underlying fault on the vehicle?

Bad Actor to marty-401

9 Jan 16 #26

A flat battery isn't faulty neither is a battery that's failed in the supermarket car park. At least with this you can get it going to drive down to Halfords and get a new battery fitted.
Happened to my wife a few weeks ago.

jhw to marty-401

9 Jan 16 #42

I had a dodgy battery and one of these stopped me being stranded several times. I did eventually get a new battery. It also came in handy for charging phone etc. as the one I've got gives out 5v, 9v, 12v, 19v.

jhw

9 Jan 16 #41

I've got a 10000mAh one - it's started my 2.0 petrol mondeo several times. I've had it for about 15 months and only had to top charge up about 3 times. You can jump start car 3 or 4 times and the power level only goes down about 10%. It also doubles as a phone/laptop powerbank. I've no idea why these aren't sold in shops like Halfords, but for what you pay - and the convenience of size, they're ideal.

c-traxx

9 Jan 16 #40

I have used my quadcopter lipo (4s 45-90c) to start my car (2.5 V6) and no problems what so ever. These will start a car anytime.

coventgamer

9 Jan 16 #39

anygood for a heart attack

willy528

9 Jan 16 1 #14

I got a 16800mah pack and have used it a lot , I had a bad battery and from one charge started my diesel engined car three times before it was not able to give enough juice to start. I would say this one would start a car maybe twice if you are lucky but even then i would only rely on it starting a car once, and if the car needs to turn over a few times to start this might not be powerful enough.

The main benefit of these devices is that they are so small and fit in the car easily, can also be charged while driving but 5 hours of diving needed. I would say this is worth it but the bigger capacity for £35 on amazon is much better value.

tomlewis007 to willy528

9 Jan 16 #37

Link to the £35 one please? ta

jimbob86

9 Jan 16 #35

I expect these are fine if you left your lights on and the battery isn't fully flat but I don't expect it to be able to start the old Landy that gets left at the other end of the field and only used twice a year...

mikerj to jimbob86

9 Jan 16 #36

As I mentioned before, I don't know about this specific pack (and GearBest appear to be a pretty terrible seller), but these small lithium ion jump packs can push out far more current than you'd expect. Have a look at Photonic Induction's channel on YouTube, he starts his 5L V8 Mercedes with only one of these style jump packs connected to it (no car battery at all) and also started a 1.6 diesel with a completely dead battery with ease.

brooklynwho

9 Jan 16 #34

GearBest are effin aweful. Had a nightmare dealing with them before christmas. They point blank refused to refund or exchange items damaged during delivery - despite me paying postage and postage insurance!
AVOID

pibpob

9 Jan 16 1 #32

Ah! I'm assuming there is no shut off circuit at all because it would require an enormous FET. So you trade current/energy for longevity. Fair enough.

pibpob

9 Jan 16 #31

And this is a recommendation? :smiley:

Zool

9 Jan 16 #30

Worth spending abit more for a decent one we use this one at work a lot its £60 but build is excellent https://www.amazon.co.uk/gp/aw/d/B014QXOJA8/ref=aw_wl_ov_dp_1_6?colid=HB0LUTA8EEB3&coliid=I161KZTH30EDL0&vs=1

crazylegs

9 Jan 16 #21

This one would probably be ok for small engines of 1.0 litre or so, It wouldn't start a mid sized car needing 400 to 600 CCA to start, I have the Anypro 600CCA and its just unbelievable what it can start..
In the last week I have been called out to start friends and relatives cars from a Clio 1.6 petrol to a BMW 4x4 4.2litre and its done the lot without a hitch including a Mercedes S class 3.4 litre without the battery attached at all.

Its still going on its original charge and I still have 3 bars lit from the 4 when its fully charged up and thats probably about 8 jumpstarts so far, the manufacturer quotes 20 jumpstarts on one charge and so far I don't disbelieve them..

Mine has a LI-Po battery in it but many will have the lower end Ni-mh

GuigsyUK to crazylegs

9 Jan 16 #22

I'm fairly sure that only LiPo batteries will work in these handheld jump devices. Nimh wouldn't be able to supply anywhere near the current required (or this level of storage capacity) unless they were as big as a house brick.

LiPo batteries can throw out an enormous amount of current. Their energy density is pretty amazing too, especially if, like this application, you aren't expecting them to do many cycles in a lifetime. The discharge circuit will let you squeeze every last mAh out of them before it shuts off. These work really well, but if you are using them every day (and recharging between), expect them to be going a bit limp after a few weeks.

andysfast to crazylegs

9 Jan 16 1 #29

Thanks for giving such good advice and information, you are correct, this one would only be good for small engines. I was amazed how good mine was as well. It wouldn't be much good for a car that just won't start and you need to crank and crank though, it's mainly good for flat battery jobs, like when an idiot (me) left the lights on or you have an older car where the radio flattens the battery if you don't start it for a few weeks. Great as an emergency charger for phones, mp3 players games consoles etc.

royals

8 Jan 16 #3

I wouldn't let this anywhere near my motors. I also wouldn't jump start any car made in the last 5 years or so

Looks like a Chinese bodge it job

andysfast to royals

9 Jan 16 #28

You dont have a clue what you are talikng about. I have one and it does work well and on a car thats less than 5 years old. THANKS OP.

marty-401

9 Jan 16 #27

Sorry for not making it clear but I was refering to the folk who seem to rely on these on a regular basis.

Obstinate_Person

9 Jan 16 #23

Say goodbye to your ECU

GuigsyUK to Obstinate_Person

9 Jan 16 1 #25

Probably safer than jumping off of another car. Actually, why is it any worse than starting off your car battery?

Roger_Irrelevant

8 Jan 16 1 #9

Amazing if true, starting a typical Diesel can use 600 Amps at 12V, which would mean this 8Ah battery discharging in about 1 second.

For that reason I call BS, but it could be it assists the car battery supplying say 20 extra Amps at 12V.

worthinger to Roger_Irrelevant

8 Jan 16 2 #10

http://www.cnet.com/uk/news/pocket-sized-jump-starters/

Perfectly viable and work very well - this could potentially start the vehicle you describe half a dozen times.

You are confusing/comparing ah with cca and these are not equivalent.

mikerj to Roger_Irrelevant

9 Jan 16 #20

Always get a school kid to check your maths before posting :smiley:

8/600 * 3600 = 48 seconds.

These small Lithium Ion jump packs can deliver a surprising amount of current, and there are plenty of demos on YouTube of them starting big engines. However whether this particular device is any good , or whether it's liable to burst into flames I wouldn't like to say.

the-bunker

9 Jan 16 6 #19

I had one, but it needed charging up - so I charged it in the car, but it flattened the car battery, so I used it to start the car. Brilliant.

AndrewJ

9 Jan 16 #18

Another +1 for these units, they work surprisingly well for a small unit, that said however be sure to make sure the model can support the peak CCA required by your engine, this unit will do 200A which is suitable for a small engined car or bike, a 2.0L plus diesel will require 2-3x more which is a job for the 50800 unit at 600A, don't expect these to work continuous they will need topping up but will get you started in an emergency.

as a rough calculation most car batteries will provide 8-9x CCA of its capacity, so if you have a 43ah battery the capable cranking amps will be in the 360A region, the posted deal here will struggle and will probably need to be left charging you battery to assist the crank rather than working instantly. likewise a 60A battery will be good for around 540A that of a large diesel.

Zool

9 Jan 16 #17

I work in the motor trade these do actually work really well we have one of these also have a sealey electro start 600 which has no battery in it what so ever and can still jump start a car.

johankirchner

9 Jan 16 #13

i bought a similar one from from aliexspress, total crap, i had the bin it, very poor quality

forcedv to johankirchner

9 Jan 16 5 #16

You spout similar BS on Gearbest threads yet you continue to claim to buy from these companies..... why?

Why not learn from your "experience" and pop down to B&Q or Maplins for your electronics?????

jtd

8 Jan 16 #12

Love the haters lol, all electronic engineers with nothing better to do than slating something they have not tried.
Before you all start I know basic calculation says these things don't work in the one I used did and does on a regular basis, It was used to start an old transit the other day and cranked over that long the croc clips on the leads actually started to melt. I will find out what type and make just for you haters once I manage to get over all the hate lol.

lotuschap

8 Jan 16 #11

ive got one twice the power of this and it cant jumpstart my 1.6 petrol

supermrp

8 Jan 16 #8

I was doubtful at first, Bought a WUHAI 50080. Started one of my Mercedes petrol cars no problem, even without leads being attached to the battery. Also started a Motorhome with a 3 litre diesel engine that was flat. They do work. Remember to charge every 3 months. Had a Streetwize 5 in 1 in the past that was useless.

mbuckhurst

8 Jan 16 2 #7

Probably more cycles than from an ALDI lead acid equipped jump start unit left in the garage for 2 years without use - stupidly I didn't keep charging the unit, so it died on me, if this works and there's no electronic reason why it won't, it's a brilliant idea.

mike

jtd

8 Jan 16 3 #5

worthinger to jtd

8 Jan 16 #6

Lack of knowledge regarding electrics, I would imagine - low voltage high amps. I wonder how many cycles you would get from one - not that you would expect to use it very often, but not too big so ideal for motorbike.

SFconvert

8 Jan 16 #4

Start a car? I very much doubt it. At best it may provide just enough extra oomph to start a small engine with a weak battery.

Bradleigh

8 Jan 16 #2

Lol at descrition
Fast charge 4-5 hours
Ideal for overtime workers wtf
This may start a car but will no doubt need charging straight away
I wouldn't depend my life on it
Bet it will struggle on a diesel
I bought a 50800 may off eBay for £30

CoolElectronics

8 Jan 16 7 #1

Good luck with that...........

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