Gremlin,

The simple fact is these devices cannot or do not display the actual voltage under static loads and or whilst stirring the sticks, as I eluded to. Granted this information is better than nothing... The response time, sensitivity and graphical representation of these devices are lacking for our purposes IMO.

I feel the loaded voltage via an ESV is a much better indicator for our needs, simply because we can view numerically the actual system voltage verses a loosely calibrated graphical display range and sustain the load indefinitely if so desired, this provides an indication of the batteries current potential under load. Which again is not necessarily the best method, but is a field performable means to an end after and or prior to flight.