Charger is not staying at a 7kW charge-rate and is fluctuating up and down

A crucial feature of 'load managed' and 'load balanced' charging is that the charger shares data with the rest of the charging cluster. The charging cluser runs calculations in real time as to the maximum charging power available, factoring in the following: Fastest Charge-Time / Expected Departure Time / Available Capacity at Site / Battery State of Connected EV.

All the above factors, in combination will influence the speed at which a connected EV is charged, and can often mean the EV charger will moderate the charge-rate up and down in real-time to ensure all of these factors are accounted for.