If u blast the AC when starting the car and drive the car will use the engine to charge the battery as it will be depleted at almost the same rate as it is being charged... It will turn to EV mode once the battery is substantially charged and u r not putting any burden on the car electronics...
The above applies if u have a GP5...
My 2 cents in this regard are that u shud try to park car under shade or atleast put a cover on the windscreen n leave the windows slightly open... When u start the car do not switch on AC suddenly... Atleast wait for the engine cool light to disappear... Try to use 20 as temp and fan speed at 3 points...
Cheers...