QUOTE(zero_kbom @ Sep 7 2011, 11:31 PM)
Heard that Mango on HD2 have massive battery drain bug. Is this already fixed?
This is my main bottleneck in purchasing an HD2 now.
p/s: Now having question, lets say I partitioned my microSD card and dual boot the HD2 with Android n WP7. Does the phone can still detect the files on other partition, eg, songs in my android partition detected in WP7, and vice versa.
I'm using WP7 Mango 7720, can confirm for my case that standby battery time is very good after the camera trick. However, when under moderate-to-heavy load, the phone tends to heat up a lot and suck battery relatively fast. I'd say for standby, it's on par with HD2 Android NAND. For under load, it should consume about 30-50% more battery than Android NAND.
With full push email, constant 3G/WiFi on, about 20 messages and about half an hour heavy web browsing (reading multiple news using Weave quickly, opening a lot of web pages), the phone can last me 18 hours and still have 30% of juice left. If used for really heavy usage, the battery will definitely be gone fast. Putting the phone under load for too long will also cause the phone to overheat SUPER fast and it's SUPER hot.
Tried to download 300MB worth of maps in Navigation app before. Around 30MB (which was about half an hour) later, the phone was super super hot.
Btw, for the new Mango I don't think you can partition your SD card for WP7 and Android. But you can always use a 2nd SD card and run Android using SD. I'm using that method, I'm using Android mainly for GPS navigation when needed only.