Would another batt. help my voltage drop? When i get to slamming the system it will drop down to 12.9-13.0, in the mornings my voltage is 15.1-15.0 then when it warms up during the day it settles down to 14.3. Would another batt. help or what other options is there, help me out guys i want to be ready for the SOCAL King Of Cali comp.