How does temperature affect a batteries available capacity?
A batteries available capacity varies at various temperatures. As the ambient temperature rises a batteries ability to deliver current increases. As the temperature falls, so does the batteries ability to deliver current. NOTE that even though a batteries ability to deliver current goes up as temperature rises, prolonged operation at extreme temperatures (>40˚C) will shorten the life of the battery.
To calculate approximate capacity correlation due to temperature, add or subtract the % adjustments shown in the following table:
| Discharge Time | 0˚ C | 5˚ C | 10˚ C | 15˚ C | 20˚ C | 25˚ C | 30˚ C | 35˚ C | 40˚ C |
|---|---|---|---|---|---|---|---|---|---|
| < 30 Min | -20% | -15% | -12% | -8% | -3% | 0% | +5% | +8% | +10% |
| 30-60 Min | -18% | -13% | -11% | -7% | -2% | 0% | +4% | +6% | +8% |
| >60 Min | -16% | -12% | -10% | -6% | -1% | 0% | +3% | +4% | +5% |