Can I connect a power usage meter like kill-a-watt or something to measure power consumed at the plug point and provide an easy readout? I will be charging at my parents house occasionally and would like them to keep track of how much power I’m using off their utilities so I can compensate them accordingly and put them at peace that the car is not gong to cost a ton of $$$ to charge every time I visit. Is it ok to plug the UMC through such a contraption every now and then?