1. Are you ready for the Galaxy S20? Here is everything we know so far!

Kindle Fire battery charger to charge phone?

Discussion in 'Android Devices' started by sickbacchus, Apr 16, 2012.

  1. sickbacchus

    sickbacchus Lurker
    Thread Starter

    I noticed that the amperage output on the Kindle Fire charger is pretty high (1.8 or 1.6 A if I remember correctly). That's quite a bit higher than standard cell phone chargers at 850 mA or my Galaxy Nexus charger at 1.0 A.

    Could I use the Fire charger on my Nexus, and if I do, will it charge faster?

    This may be a dumb question, I'm just curious. Thanks!

    1. Download the Forums for Android™ app!


  2. dautley

    dautley Android Expert

    If it did work it would probably shorten the Nexus battery life being charged at a higher rate than the battery is designed to be.
  3. Airmaxx23

    Airmaxx23 Android Expert

    It would not be good for the lithium battery to be charged at such a high rate.
  4. glennj

    glennj Well-Known Member

    Any 5 volt charger with enough amperage capacity for your phone will charge your phone at the exact same rate. It will not harm your phone battery, nor your Kindle charger, but your phone will neither charge more nor faster. The extra amp capacity of the Kindle charger will not be used, as the phone's charging circuitry controls that. What would damage your phone would be charging it via a higher voltage charger, higher than 5 volts. Don't do that to the Kindle either, of course...

    I do this all the time with my Droid 3. No problems. Charging with a too small amperage capacity takes longer, but that's all. Any 5 volt charger capable of enough amperage is identical in effect.

  5. nstg8r

    nstg8r Android Enthusiast

    Exactly. Amperage rating isn't a rating of output, it's a limit of how much juice can be "sucked out" by the device it's plugged into.

Share This Page