My Ascend is only
five days old and the battery without using the phone (on standby) will only last about four to five hours if that long. If I use the phone heavily the battery only last about two hours at maximum.

I know smart phones use batteries up quickly but even the battery on my HTC Tilt and HTC 6356 under heavy use would last about five to six hours. I have heard you can change the clock time or speed of the processor to help with the battery, is this possible and how would I change the speed of the processor or do I need to take the phone back? How long does the battery last for everyone else under heavy use or standby use?