Default [Q] Karnel drain battery

I have xperia go with android 4.1.2(Original rom). In the last few weeks, my battery started to behave strange. I downloaded GSam Battery to find out what eats my battery. I have noticed that about 60% of the battery take the application. In the description of the application, the Karnel eats about 50%. What to do ?? I can i fix this unusual situation??