Post [Q] help me fix my battery problem

someone pls help me my phone is always gets off i won't be able to on ,actually by mistake i wipe battery stat yeasterday then after this problem start.i have flash many times the stock firmware like .062/.587 but its not working. And when i plug in charger then i can switch on my phone but when i remove charger it will go automatically off .........someone pls help me i know there is many genious member who can solve my problem and i will be greatfull to thanks them all..... i am using sonyericson live with walkman wt19i (cwm 5.0.27)