Thank you very much for your efforts above. The HV Battery State of Charge you have is what I've been using for my Energi, but it doesn't appear to be accurate after all. What made me check it deeper is that at the end of my 18 mile commute using 100% EV Now, the "miles left" arrow would be at 0-1 mile or so (before I started driving in "L" gear), but the Torque app would show 20% battery left. I initally thought that was some kind of reserve for hybrid mode, but I found a screen in the Energi that shows you your current battery charge as a percentage (it's in the Go Times screen). On one morning over the18 mile commute, I made multiple comparisons of the car's own battery SoC % displayed vs. Torque's using the above formula. Here's the comparison (left number is displayed on car, right number is the Torque app #): 95-92 80-80 75-77 69-72 59-65 45-54 38-50 30-43 18-34 15-33 10-29 05-25 02-22 00-21 As you can see, at the beginning of the trip the numbers were similar but as the car reached the 50% mark, they really started to diverge. Not sure how the formula could be adjusted to match the numbers, but ideally both monitors should show about the same throughout the curve, and certainly Torque should reach 0% when the car does, unless this formula is measuring something different that my simple mind doesn't understand.