You can use them and interchange them.  The USB has a standard for power.  I 
don't recall what it is off the top of my head but I do this all the time with 
USB devices.  For example, my Bluetooth ear peace came with a wall charger 
which is a USB plug on the other.  So I decided to see if my USB wall/battery 
charger would charge it.  It took about 2 hours for it to charge my ear peace 
from dead to fully recharged.

HTH
  ----- Original Message ----- 
  From: Arnold Schmidt 
  To: [email protected] 
  Sent: Monday, April 08, 2013 12:43 AM
  Subject: Various USB Chargers, Interchangeable?


  I have several chargers that were shipped with specific devices, all of which 
have USB plugs at one end of the cord.  Could I use the same USB charger to 
charge these various devices?  In the old days, an AC adapter would have a 
specific plug on it to prevent it from being used to charge a device that 
needed a different voltage or polarity.  I think the answer to my question is 
that it is not a good idea, that I should use the charger that came with the 
device, but am I being overly paranoid?After all, all these devices say they 
can be charged from my computer.    

  Thanks for any opinions.

  Arnold Schmidt

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