Is there any way to set the amp draw to adjust over the course of a charge? Say I want to charge at work for 8 or 9 hours. Is it possible to do 40A for half an hour, then automatically switch to 16A for half an hour (or even off), then back again? Rinse. Repeat. I'm asking because as it has started to heat up here (Nebraska) this spring, with multiple AC units running, an office full of computers and factory equipment, we (ok, I) maxed the circuits a couple times with the car drawing 40A for an extended period and blacked out a third of the building.