I am looking for a way to get the electrical power from the battery to the motor sent to my Garmin Explore2. I have a simple power meter that does this now with a current shunt but the data is standalone. This would seem to be much simpler that a force-type power meter but I have not found any devices that do this. I just need something that measures voltage and current and some logic to combine it with speed/distance to determine efficiency as wh/km. Any ideas? Thanks.
