My mower stopped running and displayed the error code "LO" "BATT" "9.9"). According to owners manual the code refers to a low battery voltage of 9.9 volts. I'm old school and have not kept up with modern small engine technology. I always thought that once the engine had started it no longer relied upon the batter and would run regardless of battery condition. Is this still true or does the engine actually require a battery have a minimum voltage of 11.5Vdc for it to continue running?