What Battery Voltage Is Too Low to Start a Car? Below 12.0v
Quick Owner & Driver Verdict The direct answer: 12.0 volts is too low to start most cars reliably. Keep resting voltage at or above 12.4V, and have the battery load-tested before winter. If you’re asking what battery voltage is too low to start a car, the short answer is 12.0 volts. At that reading, a…