Friday, December 10, 2010

How to test Mobile Phone Charger Voltage

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Learning to check mobile phone charger voltage is also a big help when it comes to troubleshooting charging problem.
Various mobile phones have different varieties of charger packaging and designed but almost all of them have one the same operational concepts.

A picture below is an example of a charger used in Nokia Mobile Phones.
The concepts is that the positive voltage is in the inner side of the connector pin while the negative voltage is in outer side of the pin. Charger voltage range from 4.5 to 6 volts and an average rating of 800 milliAmpere current.
Checking it output voltage will be on its connector pin tips. Just set the analog or digital multi-meter to 10DCV or higher range. and connect both test probe to its corresponding polarities. A good and working charger will get the approximately correct reading while the busted one will get no reading.

Many experts know how to fix mobile phone charger for they know the whole designed of its circuitry inside it, but I'd rather not encourage to the newbies to teach about it because it is so complicated and might result risk of electric shock or any possible accident. It is because that circuit involves AC (alternating current) on it, NOTE: Alternating Current is a dangerous voltage and can kill if not have much knowledge about it.

3 comments to “How to test Mobile Phone Charger Voltage”

  • November 30, 2012 at 10:34 AM
    shahzaiz ali says:

    i have nokia 1112 mobile but i have one problem when i calling then after 2 or 3 minutes its show battery low and then turn off, i have change many times new batteries and now i have original battery but its still doing this.

  • September 3, 2013 at 5:56 PM
    Nuwa says:

    Two thing may result the problem...main ic or the power ic...

  • July 1, 2015 at 2:34 AM
    pankaj says:

    Thank you for sharing very useful information.

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