chargers burned out?

[Alan B]

You can buy a DMM for a lot less than a house call.

Agreed. How much does it cost to learn to use it intelligently?

 

[Homer J Simpson]

cell phone:
input : 100-240V 0.2A 50-60Hz
Output: 5VDC 1A LPS


bluetooth headset:
input : 100-240V 0.15A 50-60Hz
Output: 5VDC 0.7A

I am not sure if they were not designed for Cyprus (240V )
Maybe I should seek the fault at my mains
But then again why other cell chargers and PC power supplies do not
blow?
Is it possible the specific socket is faulty?

Both of those should be fine. Even on 250 VAC they should be fine. I suggest
you buy a cheap digital multimeter to go further with this.
I would check out the socket - and the adaptor you used.

 

[Homer J Simpson]

Agreed. How much does it cost to learn to use it intelligently?

Nothing in this group.

 

[Eeyore]

That makes more sense. Here the voltage is 240V and I guess it will not
be uncommon to go over 240V. I guess the manufacturers of devices
destined for Cyprus have this in mind and that's why I never had this
problem in the past with other devices.
These chargers have input range 100-240V but it is possible they are
not tolerant to fluctuations (although they were destined for Australia
- among others - where the current is 240V ).

One question remains though: is it possible the devices (cell phone and
bluetooth headset) were damaged or the damage stopped at the chargers?
I can tell the cell seems to work ok (apart for not beeing able to
charge a brand new battery)

I'd expect any damage to have stopped at the chargers myself. Fingers crossed !

Graham

 

[Eeyore]

If these are 60 cycle chargers they will die on 50 cycle power.

If the company making them cut the iron to the minimum that's very true.

Graham

 

[Eeyore]

Is it possible the specific socket is faulty?

*Very* unlikely.

Graham

 

[Eeyore]

You can buy a DMM for a lot less than a house call.

Ebay ! About £2.50 !

Graham

 

[Homer J Simpson]

If the company making them cut the iron to the minimum that's very true.

All 60 cycle transformer power supplies I have tried died on 50 cycle. 120
volts 60 Hz runs OK on 100 volts 50 Hz. However these are SMPS so no problem
there.

 

[Homer J Simpson]

Ebay ! About £2.50 !

About $5 or $10 here. When I think what I paid . . . . .

 

[jasen]

I went to an electronics shop and they told me that I could replace the
5V 0.7A charger of my bluetooth with their 4.5V 0.8A transformer which
is the next best thing they have.
How would that work? Is it ok to use 4.5V instead of 5V?

The other option is 5V 2A but they said this could potentially damage
the bluetooth if not removed after a short period of time from the
mains.

Does the Amperage matter ?

somewhat.

First off if the original powerpack was 5v voltage-regulated, you
should replace it with a 5V regulated one, and meet or exceed the
current capacity ("amperage").

If not regulated or unregulated doesn't matter much.
and 4.5V 0.8A unreguated might work, and will most likely do no damage...

If there's a 5V 1A or 2A regulated supply,
that should be fine, this type of powerpack is often used for USB hubs.

Either they lied about 100-240V or your power there in cyprus was more than
240V. I'm guessing that it's the former, I've heard of people from the land
of 110V having their 100-240V devices burn out when they travel to the land
of 240V, it's possible that some manufacturers ship weaker devices to places
that the think have 110V and they didn't realise that cyprus is in europe.

If they sent you an adaptor with a US style plug it may have not been
designed for 240V... (US plug is 2 parallel flat pins )

It's most unlikely that the plug-pin adaptor did any damage.
a scenario copuld probably be dreamed up eg if it had a diuode in it like
the adaptors for some travel irons... but if it is just metal and plastic
there basically no chance of it causing damage.

a loose neutral could push the voltage one the least used phase up...
this doesn't happen very often.

I'm guessing the cellular charger atleast 5V regulated (which is the same as
USB) in which case it failine with an overvoltage output is unlikely.

probably.

Only if they are 5V regulated.

Bye.
Jasen

 

[Alan B]

Nothing in this group.

You have a lot of faith in the intelligence of those who gain random access
via the internet. Just as an aside, how will a DMM help detect anomalies
in household electrical service?

 

[Homer J Simpson]

You have a lot of faith in the intelligence of those who gain random
access
via the internet. Just as an aside, how will a DMM help detect anomalies
in household electrical service?

If he has 400 VAC across the outlet that would indicate a slight problem.

 

[Jamie]

cell phone:
input : 100-240V 0.2A 50-60Hz
Output: 5VDC 1A LPS


bluetooth headset:
input : 100-240V 0.15A 50-60Hz
Output: 5VDC 0.7A

I am not sure if they were not designed for Cyprus (240V )
Maybe I should seek the fault at my mains
But then again why other cell chargers and PC power supplies do not
blow?
Is it possible the specific socket is faulty?

test the voltage with a meter in that same socket.
then test from a ground point to each input of the socket.

 

[Michael A. Terrell]

If he has 400 VAC across the outlet that would indicate a slight problem.

But it wouldn't show damaged contacts, or a loose connection, just
that there was a voltage at that moment.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Alan B]

If he has 400 VAC across the outlet that would indicate a slight problem.

No, that would indicate a big problem, in which case the services of an
electrician would be imperative.

 

[Homer J Simpson]

No, that would indicate a big problem

That was irony. Having two phases on such an outlet is a bad thing.

 

[interuser]

That was irony. Having two phases on such an outlet is a bad thing.

If it helps, I put a lamp on that socket which did not show any
fluctuations in luminance.
But then again a lamp is not as sensitive as a charger.
Anyway Voltage quite more than 240V would burn the lamp.

 

[Homer J Simpson]

If it helps, I put a lamp on that socket which did not show any
fluctuations in luminance.
But then again a lamp is not as sensitive as a charger.
Anyway Voltage quite more than 240V would burn the lamp.

That's a valid test. Also, whatever adapter you used wouldn't increase the
voltage. It looks like bad luck.

I would buy an adaptor that has 3, 4.5, 6, 7.5, 9 volts out (say) and start
off at the lowest voltage and increase as needed. Be sure to get the
polarity right.

By the way, you didn't accidentally use the wrong charger on the right
device did you?

 

[Eeyore]

About $5 or $10 here. When I think what I paid . . . . .

But a Fluke is worth it !

Graham

 

[Homer J Simpson]

But a Fluke is worth it !

I bought Ideal - also good.