Originally Posted by aniym
Many XDA members have bought cheap HD2 batteries from ebay, dealextreme etc and all said that they were fake batteries with LOWER mAh ratings than the stock battery. I find it hard to believe that the battery in the link you provided is different.
The ones with the extended back batteries are probably legit - they have the size of two standard batteries, and that is about twice the normal 1230 mA.
However this is not for USTMO.
HTC One T-Mobile, Stock ROM
Lenovo IdeaPad A2019 9" Tablet / ICS
Toshiba Satellite T925u / Windows 8.1