@rolf: come and gimme a hug! You just proved my point:
#2 came with my phone. It's the official battery.
#1 was purchased from class. The Samsung logo is wider than the official one (these photos may not show), and so is text (by jusssst a bit). Date is missing. It's QR code is blurred sideways (compare them closely, that's a SCANNED QR Code.)
FYI, both QR codes gave me links in my QR Barcode Scanner.
#2 was 50% at night, I slept about 8 hours, when I woke up the battery was 0%. (My phone usually drains 1% per hour on standby, WiFi, usually MAX 2% per hour.)
Measured voltage, was 3.0x V (literally EMPTY). Recharged a bit, kept measuring voltage, it crept up to around 3.7V. Reached 44%, removed charger, removed battery, measured voltage, put the battery back in, and turned on phone. 34%. Miracle of miracles.
Not only is it fake, it's not even working like a good fake.
Check this out:
Don't you just love Samsunng...err I mean Samaung...err sorry Samsung!
Bought from Class.
Welcome to Lebanon!
(Be careful what batteries you buy in this shit country!)