Defective battery, but may be an exception

Have the battery bought because my third original battery Samsung has bloated and has thus lost much of its power. When I got the package, I was very excited to see how powerful the battery is because he finally has a greater capacity.
The battery fits perfectly into the mobile and securely holds for occasional use 2-3 days.
Given these aspects, I would have awarded 5 stars, as well as the delivery was fast.

Why I forgive only 2 stars:
The battery gave up after less than one month his mind because the phone with this battery no longer terms (with another battery pack but already). I hope that this battery has only a production error, finally, there is always Breakaway in the production analysis. It is apparently still a small percentage errors and defective batteries are regarded as a functioning.

I'm trying to replace the battery and change my review if it works.