Yes that is true, 360vdc nom doesn't help much. What I need is the exact fully charged and nearly discharged state. It should be in the Volt's data screen though likely buried deep.
Right now I'm using 4.15/cell as top voltage and about 3.6vdc as the lower limit but would like to see exactly what GM uses as they are getting great life from the cells, still putting out the same 1k amps, 16c, after lab testing every yr and cell voltages are still within 1/100 of a volt after sitting 10 months and no BMS.
Very impressive to me. Other than weight at 25lbs/kwh and hard to fit modules, it is far better than Tesla or Leaf modules.