LiFePO4 State of Charge Calculator
Check your battery's state of charge from voltage reading
Measure at rest (no load, no charging)
Total amp-hour rating
Results
State of Charge
40.0%
Good
Remaining Capacity
40.0Ah
Remaining Energy
512Wh
Used Capacity
60.0Ah
LiFePO4 Voltage Reference
| Voltage (12V) | State of Charge | Status |
|---|---|---|
| 14.6V | 100% | Fully Charged |
| 13.6V | 99% | Charged |
| 13.4V | 90% | Good |
| 13.3V | 70% | Good |
| 13.2V | 40% | OK |
| 13.0V | 30% | Low |
| 12.8V | 20% | Charge Soon |
| 12.0V | 10% | Critical |
| 10.0V | 0% | Empty |