Air conditioners use a higher amperage (wattage) momentarily at the time of compressor start-up than while they are running.
The chart below lists the Start Up and Running amps and watts:
| Model | Wattage | Max Amp Draw | Running Amp Draw |
| 8,000 BTU Portable | 628 | 28 | 6.3 |
| 10,000 BTU Portable | 920 | 41.5 | 9.5 |
| 12,000 BTU Portable | 920 | 37 | 9.5 |
| 14,000 BTU Portable | 1007 | 46.6 | 10.8 |
| 5,000 BTU Window | 348 | 13.2 | 3.0 |
| 6,000 BTU Window | 560 | 25.5 | 5.5 |
| 8,000 BTU Window | 740 | 30.5 | 6.6 |
| 10,000 BTU Window | 920 | 38 | 8.5 |
| 12,000 BTU Window | 1110 | 50 | 10 |
| 15,000 BTU Window | 1340 | 61 | 11.6 |
| 18,000 BTU Window | 1600 | 39 | 7.8 |
| 24,000 BTU Window | 2430 | 52.5 | 11.8 |