Hi guys, I've just made the jump from Blackberry to the Desire HD and absolutley love it. I've read reports, and have experienced myself the only drawback with this phone which is the battery life. I've tweaked the settings and downloaded a power saving app, but was thinking if there were any higher specification batteries than the 1230mAh provided? And if there was are they likely to damage the phone or affect the warranty or something? Cheers in advance guys.