12volt Automotive Battery condition from Voltage Measurement
Voltage | State of Charge |
12.6+ | 100% |
12.5 | 90% |
12.42 | 80% |
12.32 | 70% |
12.20 | 60% |
12.06 | 50% |
11.9 | 40% |
11.75 | 30% |
11.58 | 20% |
11.31 | 10% |
10.5 | 0% |
Battery should not have been charged or used for about 1 hour before this test.