It's a 1500 mAh battery for the Desire HD and it seems to be the exact same size as the battery that comes stock in the Desire HD. Someone please try it out and post a review... I'd try it, but I live in the US and do not have Desire HD.
I got my DHD last month and the battery hardly lasted the day i bought this after changing the rom and the kernal i get a good day and a half before i need to charge.Don't know how much more I get over the oem battery as thats been in a drawer since i got the phone
After update to Gingerbread my battery work almost double so long tan before (two days in stead of one day).
Turn off WiFi, GPS and Bluetooth when you not use it. I also have back light to 40%
My brand new 1600mAH battery (via ebay) that only cost me £4 runs for 7hours 45mins.
Default HTC 1200mAH 1 year old runs for 6hours ~15mins.
My one year old 1600mAH battery however now goes for ~3hours.
So you get a small increase in power. But don't expect it to last a year!
Still at £4 for a couple of months use can I complain?
P.S. ask any electronic engineer about batteries and they'll tell you that whilst you can add extra capacity, you do sacrifice battery life. Just physics.
Received my 2340mAh battery today and it seems to be going OK so far, HD does kill the battery off but the 1200mAh was a ridiculous battery! hope to see improvements with my new battery!