Samsung S2 2500mAh Batteries original size

[Xian S2]

today i found this 2 batteries on amazon this are 2500mAh Batteries with original size less when 10€ what do you think ?
http://www.amazon.de/Cbury-Samsung-EB-F1A2GBU-Batterie-2500mAh/dp/B00TGMRIPI/

http://www.amazon.de/iFoxtEK-2500mAh-SAMSUNG-Ersetzt-EB-F1A2GBU/dp/B00E3SD02A/

ps sry links are in german

 

[bixi]

Have you bought soms of this batteries? I bought an anker 1900mah I'm feeling good with this battery...15 hour with kitkat

Inviato dal mio GT-I9100 con Tapatalk 2

 

[cherryb8844]

I bought the new Samsung original battery from amazon its same voltage like your cbury 3.7
But I noticed the stock that comes with my phone is 4.2 voltage did any one have any idea about it. Did this ok or not

 

[wolfanger]

Have you bought soms of this batteries? I bought an anker 1900mah I'm feeling good with this battery...15 hour with kitkat

Inviato dal mio GT-I9100 con Tapatalk 2

I have same battery, working great with Lollypop. That's the one battery i'd suggest.