Also available, these little smart phone stands with built in micro USB cable for £0.10! Reviews don't look great and stock seems limited but worth a punt I suppose.
bought 200. never know when you'll need one :smile:
jewelie
2 Oct 164#30
Nearly right. Heat.
PS As for the voltage drop, that's just ohms law - voltage = current * resistance. So, at 0.5A current just 1ohm of resistance on a cable = 0.5V voltage drop. At 4.5V your phone will limit it's current draw and certainly won't take more. In the above example, the heat would just be power = current * current * resistance = 0.25W, not much but enough. At 2A you'd have 2V voltage drop = only 3V to charge the device and you'd be dissipating 4W *just* from the cable ((in reality the phone/tablet would reduce it's current draw and would just charge at 0.5A due to the voltage drop.)
P666DOM to thomasleep
2 Oct 163#15
It's a maths trick, subtracts 10p from your wallet.
All comments (50)
dtokez
1 Oct 16#1
liamf12
1 Oct 162#2
Just bought some white ones, thanks. Cheap replacement for all those pricey ones my kids seem to have eaten.
smudge92
1 Oct 161#3
Thanks Man! some great little stocking fillers! just brought £3 worth.
kevykat
1 Oct 164#4
bought 200. never know when you'll need one :smile:
smudge92 to kevykat
1 Oct 161#6
really? you spent £20 on these? sounds like an awful idea unless you plan to sell them on at 50p each or something. they are too short wired to be massively helpful.
Sanjuk
1 Oct 162#5
Wow great find just ordered 300 but can only get delivery on the green coloured ones lol
DominicPTS to Sanjuk
2 Oct 161#14
Ordered 400 just to go one better although no idea what I'll use them for
Sophiasky
1 Oct 161#7
Thank you, just ordered 3 of each type.
kotr
1 Oct 16#8
Im sure it was a good idea at the time
AndrewRunagall
1 Oct 16#9
I don't think you picked up on the joke.
kevykat
1 Oct 16#10
im thinking more £1 each
thomasleep
1 Oct 166#11
10p stuff i want some what does it do :smiley:
P666DOM to thomasleep
2 Oct 163#15
It's a maths trick, subtracts 10p from your wallet.
dazzlingstar
2 Oct 161#12
Are these for Samsung?
dtokez to dazzlingstar
2 Oct 161#13
I think most samsung devices are still using micro USB so yes :smiley:
Managed to get four pink smartphone stands to send to Glasgow St Enoch (the only one I could see in stock near me) - will be good for stockings (assuming they're not as bad as reviews suggest)!
(There's a Black one in Edinburgh for any of you Scottish HUKDers).
Be aware that the cable with these stands is 15cm and is super-short, so bear that in mind when ordering. One review implies it charges very slowly - will have to test it with the Android app Galaxy Charging Current.
jewelie
2 Oct 161#20
From the pictures it looks like the cable is *very* thin, so I'd expect it to be almost useless as a charging cable. Even normal USB cables are often rubbish for charging (the thicker and shorter the cable, the less electricity is lost in the cable that would otherwise slow down charging.)
fireman1
2 Oct 161#21
Sounds like nonsense.
A cable takes a set load from the plug/transformer. it's either thick enough to take it or it's not. Do you think a really thick and short cable would charge your phone quicker!
'lost electricity' are you for real? does it evaporate into the air.
louiselouise
2 Oct 16#22
No expert on MicroUSB cables or their charging capabilities, but I can recommend Blackberry cables as a great cheap and effective option (also tested them with Galaxy Charging Current and they are faster than many other generic cheapos).
fireman1
2 Oct 16#23
Also. Any particular reason why you have put stars around very and bracketed a normal sentence?
jewelie to fireman1
2 Oct 161#26
*Very*: Because normal USB cables are thin enough already, and that one looks much thinner. The standard was originally only designed assuming 500mA maximum current and most cables out there (around 26AWG at about 1m ish) only barely handle that without much voltage drop.
Rubbish grammar and punctuation: I've got multiple windows and conversations on the go and am more interested in the correctness of the actual information I'm attempting to impart than exact syntax or grammar. Sure, if it's bad enough that people don't understand what I meant then it's a big fail, but if people do then it's irrelevant really.
chickey999
2 Oct 162#24
If the cable is thinner can sometimes carry less amperage so would take longer to charge your phone. Same principle with very long cables that are poorer quality. This might not be as bad as it's very short but she's speaking the truth. Not all micro usb cables are the same.
Col
jewelie to chickey999
2 Oct 16#28
Thank you! :smiley:
Julie
x
PS She. :wink:
jewelie
2 Oct 163#25
(Sees red, tries to keep civil.)
I've a degree in this **** subject. I've measured the loss in such cables! Even I didn't realise how significant it can be before I measured it. If there's even a modest resistance (which you get from thin cables), you get not insignificant voltage drop, the voltage drop limits the current you can have - the USB charging standard is designed like that, in essence the devices negotiate a current that the system can keep without the voltage dropping to low.
If you want to charge at anything like 5V 2A you want 22AWG cables and no thinner, else it just isn't going to happen!
Anyone who's curious, I'd suggest either making some breakout connectors and measuring the voltage drop with a meter or get one of those cheap inline USB current measuring devices -- yes, there's a bit of a voltage drop across those too but it's still quite useful to see how dramatically different cables affect charging currents.
Proveright
2 Oct 161#29
Good find OP.
Managed to get some stands but bag cables OOS near me .
bollybobinson to Proveright
3 Oct 16#37
Read the review on the stands?!!!
jewelie
2 Oct 164#30
Nearly right. Heat.
PS As for the voltage drop, that's just ohms law - voltage = current * resistance. So, at 0.5A current just 1ohm of resistance on a cable = 0.5V voltage drop. At 4.5V your phone will limit it's current draw and certainly won't take more. In the above example, the heat would just be power = current * current * resistance = 0.25W, not much but enough. At 2A you'd have 2V voltage drop = only 3V to charge the device and you'd be dissipating 4W *just* from the cable ((in reality the phone/tablet would reduce it's current draw and would just charge at 0.5A due to the voltage drop.)
chickey999
2 Oct 162#31
Sorry have amended, typed it in a rush is my only feeble defence :-)
For a crap visual demo of the difference cables can make see
I might get some "just in case" heck at that price you could get a bunch string them together and hang them across the room as Christmas garlands! :laughing::confused:
jewelie
2 Oct 16#33
Heh, no worries, no need to apologise. :smile:
thomasleep
2 Oct 16#34
I do not have a wallet, so this is win win for me then :wink:
balexandrov
3 Oct 161#35
Good job Julie!
Just check your power formula.
jewelie
3 Oct 16#36
Hahaha. Doh. Thanks. :smiley:
violetd
3 Oct 16#38
I've just had a paypal refund for the 5 I ordered, no email from Maplin :disappointed:
thomasleep
5 Oct 16#39
It is called a cold button :wink:
kevykat
5 Oct 161#40
received my 200 today
smudge92 to kevykat
11 Oct 16#45
did you get them home delivered? i only brought £3 worth and i had to walk out the shop with an embarrassingly big box so i can imagine you would need your own sleigh for £20s worth.
louiselouise
6 Oct 161#41
Got a dispatch email last night for the 3 I ordered to store - will see what they're like later on today.
Edit: Will update when I get it - too much running around today! :smiley:
louiselouise
7 Oct 162#42
Picked mine up ("are those the 10p ones?" said the assistant - er, yes *blush*) :smile:
Here it is in the packaging:
Using Galaxy Charging Current (Android app - powered by the USB on my desktop PC):
Via my 2amp charger:
louiselouise
7 Oct 162#43
Thinking about Galaxy Charging Current, it's probably better if I let my battery drain (as it will be on a trickle charge at 100%?). I'll try it again later.
Edit: Actually, with the battery drained quite a bit, it's exactly the same as above :smiley:
dtokez to louiselouise
8 Oct 161#44
go Cool that's good so its giving you pretty much full current if those readings are accurate :smiley:
Sophiasky
11 Oct 16#46
I have bought 3 of these stands, however, they don't seem to fit my phone - Sony Xperia Z2? I can't even get the stand to stand up - am I doing something wrong - the website doesn't show a phone in the stand, so don't know how it should look?
smudge92 to Sophiasky
11 Oct 16#48
yeah i think it was a poor design as i tested one out also but i'm giving all the ones i brought away to people so i'm not bothered. get more use out of the others.
kevykat
11 Oct 16#47
Ye, 200 and it was free delivery
Username098
24 Oct 16#49
It is not worth even that price. All cables in the UK are HUGELY OVERPRICED.
Username098
24 Oct 16#50
It is not worth even that price. All cables in the UK are HUGELY OVERPRICED.
Opening post
Other colours available:
Black: http://www.maplin.co.uk/p/usb-bag-cable-with-micro-b-connector-black-a47ly
Green: http://www.maplin.co.uk/p/usb-bag-cable-with-micro-b-connector-green-a49ly
Purple: http://www.maplin.co.uk/p/usb-bag-cable-with-micro-b-connector-purple-a50ly
Pink: http://www.maplin.co.uk/p/usb-bag-cable-with-micro-b-connector-pink-a53ly
White: http://www.maplin.co.uk/p/usb-bag-cable-with-micro-b-connector-white-a48ly
Also available, these little smart phone stands with built in micro USB cable for £0.10! Reviews don't look great and stock seems limited but worth a punt I suppose.
Black: http://www.maplin.co.uk/p/usb-smartphone-stand-with-micro-usb-connector-black-a54ly
Green: http://www.maplin.co.uk/p/usb-smartphone-stand-with-micro-usb-connector-green-a56ly
Blue: http://www.maplin.co.uk/p/usb-smartphone-stand-with-micro-usb-connector-blue-a58ly
Purple: http://www.maplin.co.uk/p/usb-smartphone-stand-with-micro-usb-connector-purple-a57ly
Pink: http://www.maplin.co.uk/p/usb-smartphone-stand-with-micro-usb-connector-pink-a60ly
White: http://www.maplin.co.uk/p/usb-smartphone-stand-with-micro-usb-white-a55ly
Top comments
Nearly right. Heat.
PS As for the voltage drop, that's just ohms law - voltage = current * resistance. So, at 0.5A current just 1ohm of resistance on a cable = 0.5V voltage drop. At 4.5V your phone will limit it's current draw and certainly won't take more. In the above example, the heat would just be power = current * current * resistance = 0.25W, not much but enough. At 2A you'd have 2V voltage drop = only 3V to charge the device and you'd be dissipating 4W *just* from the cable ((in reality the phone/tablet would reduce it's current draw and would just charge at 0.5A due to the voltage drop.)
All comments (50)
(There's a Black one in Edinburgh for any of you Scottish HUKDers).
Be aware that the cable with these stands is 15cm and is super-short, so bear that in mind when ordering. One review implies it charges very slowly - will have to test it with the Android app Galaxy Charging Current.
A cable takes a set load from the plug/transformer. it's either thick enough to take it or it's not. Do you think a really thick and short cable would charge your phone quicker!
'lost electricity' are you for real? does it evaporate into the air.
Rubbish grammar and punctuation: I've got multiple windows and conversations on the go and am more interested in the correctness of the actual information I'm attempting to impart than exact syntax or grammar. Sure, if it's bad enough that people don't understand what I meant then it's a big fail, but if people do then it's irrelevant really.
Col
Julie
x
PS She. :wink:
I've a degree in this **** subject. I've measured the loss in such cables! Even I didn't realise how significant it can be before I measured it. If there's even a modest resistance (which you get from thin cables), you get not insignificant voltage drop, the voltage drop limits the current you can have - the USB charging standard is designed like that, in essence the devices negotiate a current that the system can keep without the voltage dropping to low.
If you want to charge at anything like 5V 2A you want 22AWG cables and no thinner, else it just isn't going to happen!
Anyone who's curious, I'd suggest either making some breakout connectors and measuring the voltage drop with a meter or get one of those cheap inline USB current measuring devices -- yes, there's a bit of a voltage drop across those too but it's still quite useful to see how dramatically different cables affect charging currents.
Managed to get some stands but bag cables OOS near me .
Nearly right. Heat.
PS As for the voltage drop, that's just ohms law - voltage = current * resistance. So, at 0.5A current just 1ohm of resistance on a cable = 0.5V voltage drop. At 4.5V your phone will limit it's current draw and certainly won't take more. In the above example, the heat would just be power = current * current * resistance = 0.25W, not much but enough. At 2A you'd have 2V voltage drop = only 3V to charge the device and you'd be dissipating 4W *just* from the cable ((in reality the phone/tablet would reduce it's current draw and would just charge at 0.5A due to the voltage drop.)
For a crap visual demo of the difference cables can make see
https://www.youtube.com/watch?v=A2CwOAXrkGI
Just check your power formula.
Edit: Will update when I get it - too much running around today! :smiley:
Here it is in the packaging:
Using Galaxy Charging Current (Android app - powered by the USB on my desktop PC):
Via my 2amp charger:
Edit: Actually, with the battery drained quite a bit, it's exactly the same as above :smiley:
Cool that's good so its giving you pretty much full current if those readings are accurate :smiley: