Hi:
I have a Tesla Y and Chevy Volt using older (non-wi-fi) Bosch and Clipper Creek J1772 EVSEs.
They're on a single 40amp circuit, so I can't charge both cars at the same time.
My electric rates drop to 5 cents per kWh between 9pm and 7am weekdays.
The Volt is programmed to charge from 9pm to 12:15am (to fill an empty tank). But, I can't figure out how to set the Tesla to start charging at 12:20am and stop at 7am, regardless of how much more it can use.
I found a free IOS app called “Optiwatt” which claims to control and monitor all aspects of charging a Tesla. I configured it with a fake off-peak schedule of 1am -7am (only supports 1 hour increments.)
Since the Chevy Volt maxes out at 16amps, another option is to limit the Tesla to 24 amps and let it charge from 9pm to 7am.
But, I still can't figure out how to set both a start and end time for the Tesla.
Assuming Optiwatt can start-stop the Tesla at those times, I haven't done the math to determine the better method, (5 hours at 40 amps or 10 hours at 24 amps)
Another anomaly is the Tesla keeps resetting the max charge to 50%. I'll need it for a long trip in a few weeks. Hope to solve that by then.
Thanks,
Gary
The difference between hardware and software: If you fool around with it long enough, software works and hardware breaks.
I have a Tesla Y and Chevy Volt using older (non-wi-fi) Bosch and Clipper Creek J1772 EVSEs.
They're on a single 40amp circuit, so I can't charge both cars at the same time.
My electric rates drop to 5 cents per kWh between 9pm and 7am weekdays.
The Volt is programmed to charge from 9pm to 12:15am (to fill an empty tank). But, I can't figure out how to set the Tesla to start charging at 12:20am and stop at 7am, regardless of how much more it can use.
I found a free IOS app called “Optiwatt” which claims to control and monitor all aspects of charging a Tesla. I configured it with a fake off-peak schedule of 1am -7am (only supports 1 hour increments.)
Since the Chevy Volt maxes out at 16amps, another option is to limit the Tesla to 24 amps and let it charge from 9pm to 7am.
But, I still can't figure out how to set both a start and end time for the Tesla.
Assuming Optiwatt can start-stop the Tesla at those times, I haven't done the math to determine the better method, (5 hours at 40 amps or 10 hours at 24 amps)
Another anomaly is the Tesla keeps resetting the max charge to 50%. I'll need it for a long trip in a few weeks. Hope to solve that by then.
Thanks,
Gary
The difference between hardware and software: If you fool around with it long enough, software works and hardware breaks.