Using Bluetooth device with Android HTC HD2? You probably face short battery life with your HTC HD2. One of the root caused ~ high Bluetooth battery drain (60mAh) in standby mode. Thanks to XDA Developers, we have a fix on this Bluetooth high battery drain issue. What you need to do? Just wait for kernel developers / ROM chefs to implement this fix on their latest release. Or you can try to apply the patch yourself.