I have a similar problem with my HTC Inspire. It first happened 4 days ago, i woke up and i checked my phone, it said it had 0% battery, and when i unlocked it, there was a notification saying that my phone is using too much power, and i need to switch to another AC charger, so i did, and it restarted because i switched cords and it was dead, but it turned back on right away and started charging. but today, i woke up to find my HTC Inspire has died while it was on the charger, completely. the charging light wasn't on, and I immediately knew i was screwed. the phones completely dead, wont charge no matter how many different chargers i use, tried taking out battery and making sure it had good connection, when i fell asleep last night it was 100% charged, and still on the charger.. idk why its been doing this lately... before it did this, a year ago i accidentally went swimming with it in my pocket, and the only thing that broke was the power/lock button. everything else dried out and worked perfect. i rooted it, flashed rom to blackout 4.0, overclocked to only 1.2ghz, with lots of profiles in setcpu. (had to wake the phone with volume buttons, witch always fall off on this phone, so are being held in place with tape) the phone dies quickly when using it, after just listening to music threw headphones, the phone would die in about 4-5 hours (sometimes less) and took about that long to charge it to 100%. idk whats the problem with this phone, if anyone can help me, how can i turn this phone on with my broken power button? it usually turns on by itself when i put in battery, but its dead, and i cant charge it unless the phones on... please help.. i have a lot of stuff on that phone.... :'(