anyone have an ideal

I don't think so. I fly the 06, seen people using the 07, but using the 08 is really pushing it IMHO.

Raptor e620 w/V-bar, Tango 45-06, Phoenix 85HV, TrueRC 12S1P 4000mAh

The Tango rotor will explode if you run too high an rpm...keep it conservative.

As per specs...her range is 6 to 32 cells and we will use NiC-NiMh for calculating....so breaking it down...

At 1.2V >under load< X 32 (cells) = 38V (avg)
At 1.5V >no load< X 32 = 48V

Using the smaller number for safe loads

38 divided into 4.2 (no load) = 9 lipo cells
38 divided into 3.7 (under load) = 10 lipo cells

Using the higher number for MAX
48 / 4.2 = 11.4
48 / 3.7 = 12.9

So the "safe margin" answer is NO.

You can also contact "them" directly for an answer.

~~Enjoying the hobby one flight at a time~~