Battery Powered : Teensy Shield + Xbee Shield ?

Dear

I’m a newbie.

I would like to know if it’s possible to use 3.6v (LS33600 http://www.saftbatteries.com/force_download/LS33600.pdf) by Barrel Jack with:

  • Teensy Arduino Shield Adapter : https://www.sparkfun.com/products/13288

    SparkFun XBee Shield : https://www.sparkfun.com/products/12847

  • Or better, use the JST to power the Teensy (by cutting the VIN/VUSB jumper on the bottom of the Teensy): in this case only 3.3v must be used, what is the tolerance ? 3.6 is to hight ? Must I use schottky diode ?

    Best regards.

    Philippe.