I got my Mogul a week ago and the last week, I had to charge the phone at least 3 times everyday ( I was browsing the net, watching slingplayer, playing Youtube/Video Google and had Active Sync running 24/7 to fetch my work email. Guess all this drained my battery rather easily. However, this afternoon, I found this site with the hacks. Installed it this afternoon (I installed both speed and power hacks. It has run on my Mogul for about 5 hours and I have not noticed any problems. I have also noticed a minor increase in browsing speed and after 5 hours of medium usage, my phone hit 5% level ready to be charged. Tomorrow is going to be the real test to see how many times from morn to night I will have to charge it with more than mediocre usage - you know slingplayer, youtube and the works. Hopefully it lasts. Will keep you posted, how it goes tomorrow!
