240v USB charger – Forumite.site

This topic has 20 replies, 9 voices, and was last updated 7 years, 10 months ago by Ed P.

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May 18, 2018 at 9:19 am #20836
johnbarry
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@johnbarry
Forumite Points: 13
This came with my mobile phone.

My new shaver has a USB charger cable, can I use the above to charge it.

Cheers
John
May 18, 2018 at 9:31 am #20840
Alan Wood
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@alanrwood
Forumite Points: 0
Not possible to say without knowing the spec of the chargers concerned, including voltage, output capacity and connection details.
May 18, 2018 at 9:52 am #20841
johnbarry
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@johnbarry
Forumite Points: 13
Sadly I don’t have that info, so all in all best not to use it then.

Cheers
John
May 18, 2018 at 10:11 am #20842
Boris
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@boris
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The mobile phone charger should have a small label on it showing its spec.

Never trust an atom - they make up everything !
May 18, 2018 at 4:00 pm #20859
Bob Williams
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@bullstuff2
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Boris is right JB: somewhere on the phone charger, will be stamped or labelled information (probably tiny script, might need a magnifier) giving the ratings in Volts & Milli amps. Somewhere in the User Guide for the shaver, or stamped/labbeled on its body, will be the same information. Examples:

My phone charger –

My razor/body hair trimmer –

Click on each photo to enlarge if you need to, but some information (as in the phone charger) is really tiny. Might be easier to photograph the info you can’t read, then blow it up in Google Photos.

When the Thought Police arrive at your door, think -
I'm out.
May 18, 2018 at 4:25 pm #20862
The Duke
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@sgb101
Forumite Points: 5
I swap and change my usb plugs around. They are clever enough to work out what the appliance is and needs.
May 18, 2018 at 6:39 pm #20867
johnbarry
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@johnbarry
Forumite Points: 13
sos I know about the specs on the charger, I don’t know the specs on the appliance, nor what it means.

I was using the amazon link & mine as an example, the charger (dads) is not here I was considering getting him a shaver with USB cable to plug into the charger he said he has. I feel it too risky and just wondered if it was risky.

Cheers
John
May 18, 2018 at 6:44 pm #20868
Alan Wood
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@alanrwood
Forumite Points: 0
They are not compatible.

The hair trimmer output is 3 Volts and the Phone charger is 5 Volts.
May 18, 2018 at 6:58 pm #20869
johnbarry
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@johnbarry
Forumite Points: 13
Thanks Alan

Edit:

Where can I get a 240v 3 pin to USB charger for this on Amazon

Cheers
John
May 18, 2018 at 8:48 pm #20873
JayCeeDee
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@jayceedee
Forumite Points: 230
John – looking at the review for that shaver, I can see that it came with a lead that plugs into the shaver at one end and has a standard size USB plug at the other.

Something like THIS will do for you. The shaver is charged by the USB lead ( 5v ) and most appliances will just take the amount of power they need to charge up the battery. The guy even says he uses a PowerBank to charge it – it takes 8 hours to provide a 45 min use.

I have one of THESE that I use – I think Duke and PM use them too – there are three sets of ( 2 ) USB sockets, one set has a 1A output, another set has a 2.1A output and the third set has a 2.4A output. They are for anything that takes the 5v USB power, from a mobile, to a tablet, a SatNav, to a Vape battery, to a battery charger for re-chargeables.

If you have a 13A plug that has a USB socket on the body, that is all you need. I got one with the wife’s Kindle, my Sony mobile, and various others.
May 18, 2018 at 9:43 pm #20874
johnbarry
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@johnbarry
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Nice one JayCee I will get this if your sure it’ll do

I do have this for my mobile but Alan said They are not compatible.

Cheers
John
May 18, 2018 at 11:28 pm #20877
The Duke
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@sgb101
Forumite Points: 5
Yes I do use those type of power banks. I have many around the house. And anything that has a USB plug that needs charging, it gets plugged in. I’ve never had a single issue

As I said above, just plug it in, it will sort itself out.

You could even charge it via your PC or laptop, but that will only give you a max output of 500ma at 5v, so would take an age, over twice what the original car get would take. Assuming you said it was rated for 1amp 3v. So the pc would attempt the full 500ma and just push (step down to) 3w. I assume.
May 18, 2018 at 11:56 pm #20878
JayCeeDee
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@jayceedee
Forumite Points: 230
johnbarry wrote:

Nice one JayCee I will get this if your sure it’ll do I do have this for my mobile but Alan said They are not compatible.

John – I’ve just googled “huawaei phone charger” and got THIS as the first hit. It looks identical to yours. As the write up states the output is 5v / 2A. That should do a stand-up job of charging your shaver.

Alan might possibly have got confused, because I think he’s referring to the photo of the BaByliss for Men charger plug ( 3v ) that Bob posted as an example of where to look for the info!!
May 19, 2018 at 6:30 am #20881
PlaneMan
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@planeman
Forumite Points: 196
JCD, you’re right. I use that power bank to charge almost everything, it’ll even do my Chromebook, slowly compared to the supplied charger but mostly that’s no problem.
May 19, 2018 at 8:33 am #20882
johnbarry
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@johnbarry
Forumite Points: 13
Thanks Duke, JayCee, PM

Duke I do charge with the PC, this is for Dad and he has no tech stuff to plug in.

Since last night I have got Dad a shaver with a UK plug, far easier for him.

It’s good to know I can use my mobile adapter to charge my shaver, that is USB only.

Cheers
John
May 19, 2018 at 9:02 am #20884
JayCeeDee
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@jayceedee
Forumite Points: 230
johnbarry wrote:

Thanks Duke, JayCee, PM Duke I do charge with the PC, this is for Dad and he has no tech stuff to plug in.

John – a sometimes forgotten USB socket is on some modern TV’s. While Dad may not have one, there’s also THESE which can easily do the job too.?
May 19, 2018 at 9:50 am #20887
Richard
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@sawboman
Forumite Points: 16
Hopefully the device will have the means to manage the voltage difference between the 3 volts of the device and the allegedly 5 volts of the charger. Chargers do usually run a little above the battery voltage inn order to push something into the battery and rely on the device to manage the results. However, there are a couple of possible issues. Some modern chargers can put out up to 24 volts as some down stream devices can need that much, this is supposed to sorted out by a dialogue between the devices and the lead that connects them. If you really want to get confused read up the various stages/grades/levels of the USB specification through the years. Putting 24 volts into a 3 volt device would be a highly undesirable situation. Generally having a charger able to supply more current than the device needs should be fine, as the device should take only what it can an manage the issue. Having a charger pump out far too much voltage will likely fry the device. Older batteries were subject to different rules— charge a 12 volt or even a 6 volt car battery with no controls using a 24 volt charger ~~stand back~~ on second thoughts, best not to try!
May 19, 2018 at 9:57 am #20888
Alan Wood
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@alanrwood
Forumite Points: 0
Sorry if I was confused by the pictures. I thought these were the actual ones.
May 19, 2018 at 12:08 pm #20894
Bob Williams
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@bullstuff2
Forumite Points: 0
Alan Wood wrote:

Sorry if I was confused by the pictures. I thought these were the actual ones.

No worries Alan, you were correct with your judgement, but I just posted it as a demo of where JB should look to get the Spec’s.

When the Thought Police arrive at your door, think -
I'm out.
May 19, 2018 at 7:25 pm #20914
johnbarry
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@johnbarry
Forumite Points: 13
Thanks

He does have USB on his TV I thought it was for media in not out.

Thanks for the link if he had one of those on screwfix, mom would be sure to plug in
something overated.

Alan it usually more me that creates confusion. When I type it looks good to me, but that’s me.

Cheers
John
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