I know the official max Vin is 6V and that although the regulator chip can handle up to 10V, it isnt recommended due to thermal dissipation. But in practice, would I risk killing my T3.2 with 4 alkaline AAs? Fresh they would put out about 6.6V total but probably only for about 15-20 minutes before they drop down below 6.

I have a circuit that needs 4AAs to run a motor and would like to not have to add an external regulator for the Teensy...

Thanks!