My husband’s phone was not charging with any of our new chargers. We compared a non working adapter to one that works and immediately saw a difference and led me to youtube to find many people have had the same problem.
This charger gets extremely hot, charges slower and could damage your phone and beyond. This may have been what caused my husband’s phone to die. We had been using these adapters (in the US and South America), when his stopped charging all together even with a charger that came with a Samsung device.
I found this video helpful:
Watch out for FAKE Chinese Samsung phone chargers…: http://youtu.be/IRxTcWFV2OM
And my own side by side comparison. Left is real, right is fake:
Please do not buy any brand name merchandise from ebay or Amazon stores with independent names. Counterfeit electrical devices can be extremely dangerous and, of course, are illegally produced.