First Post : Start off with a purchase from EBAY

This is an OEM_battery bought off from ebay for HTC HD2, price is cheap and battery life is pretty close to the real default battery that comes with HTC HD2. It cost only US4.83, which is considered dirt cheap as opposed to buying original battery in Singapore which cost around $60-$70. Recommended as we all know that HD2 battery life hardly lasts a day of normal usage.
Bought from this seller. 
EBAY SELLER