I just bought and installed a Cycle Analyst meter on my e-bike. After hooking it up and testing it on the stand, with the front wheel (my e-hub) off the floor, it was putting very little strain on the battery and controller unit(I suppose). Placing the e-bike on the ground however, drew much more power from the battery, and then some more when fully loaded (my body weight). I know this a small contribution to a paragraph you wrote, hopefully it will spark other ideas? Good luck.