Battery status jumps from 70 to 100 ??

view story

http://forum.xda-developers.com – My Desire battery while charging the status jumps from 70 % to 100% immediately. I have been using battery calibrator application. If the battery is fully charged, my desire turns off at 30%. That means in anyway my desire only uses 70% of the battery. :crying:pls help me (HowTos)