I have 2 spare batteries brought 3 months ago because I always like to have a me have if the other is empty.
Since I always external battery charging the smartphone I can watch virtually change the batteries over time.
In this battery, I was surprised that this only in schlauchfolientueten arrived ... so do not overpack ala Samsung. This was my first matter, the main thing it serves the purpose. After only 2 months of the first battery was useless, that charge time only 4 hours and you could see that he was bloated. The same after 3 months with the second. Bin pissed, Weil's very dangerous if a battery time is in the air ... the swelling are the first signs of ...
Prefer something more expensive / buy more quality!