dead battery

yes i did balanced that pack ,pack took ful charge and never got hot.check the car for binding every thing was smooth.just clean all of my bearing and diff fluids.useing 7f 10c 3r.ran the car about two to three times had no ploblem,temps were good batt was 110 to 125 motor was 170 to 185 at one point i dont think is was that hot.what do you guys think.i need help onthis dont want waste money on more batt until i find the promblem.