WARNING Harmful

End October 2013 I received by a local telephone company a new phone: a Samsung Galaxy S4 i9105.
Ansich there is nothing to complain about it. On Monday (3:02:14) went on the journey to work my phone suddenly.
Each reconnection was in vain. In the evening I have reconnected at home on the charger cable, and suddenly everything was in order.

On Tuesday, 04.02.2014 the game started again from scratch. This time I have the safe side a charging cable mitgenommen.Das mobile dan ran perfectly again. In wise action I immediately ordered an alternative battery at Amazon, because of suspicions that mine is broken.

This suspicion has been entirely justified, because just last week fared a work colleague as well. This does have a Samsung Galaxy W (may be wrong in the exact name), as well as his original Samsung battery ballooned.

As yesterday arrived my new battery and I took out the old, I could not believe my eyes: it was inflated.
You do not have a college degree to know that a battery which stores electricity and delivers, not "can be good" if it previously flat ... But a "big belly" has. And I vaguely doubt that he has "eaten" too much electricity.

CONCLUSION:
I suppose no one from the decision to buy this battery. But I warn strongly against. I have since my first cell phone (Nokia 3210) have experienced battery problems .... but this was on the "memory effect". However, never that he deforms independently.

And two batteries within a week from the same manufacturer, with the same problem, giving as to consider an already.