Thank you for your interest in Sump Pumps Direct. The NexPump AIJET will run on 2 amps from AC when charging at 20 amps and 0.5 amps from AC when charging at 5 Amps. When running direct off of AC power, it's 2-3 AMPS when pumps are running, maybe a little less.
Both the NexPump and iON systems are excellent and reliable systems but they each offer varying features. The NexPump system operates on a converted power and the iON system operates on an invertor.
If you have any other questions, please let me know.