If you’ve used the very popular Samsung Galaxy S3 , there’s a chance of you to be the one of unlucky ones which experienced the swelling of the Samsung batteries. The same thing happened with Note and Note 2 .
The swelling of the battery bended the back cover of the phone and sometimes the swelling of the battery occurred after the warranty period which made the owners angry.
Now it has been discovered that the fault is not with Samsung but with Hitachi. Hitachi has admitted the fault of the swelling of the batteries. The reason of the swelling of the batteries were that the water vapours was allowed to get inside while it was being manufactured. Now the issue has been fixed and It won’t happen again now in upcoming smart phones, Most of the batteries infected by water vapour were manufactured in 2012.
As dealing to complaints , Samsung was forced to offer free batteries replacements by the Korea Consumer Agency.