Pesky Products created this convenient way to power Teensy 3.x from a LiPo battery :
LiPo battery charger add-on for Teensy 3.1
This is an “appallingly small” add-on shield for Teensy 3.1 [..] The heart of the board is the MAX1555 battery management chip by Maxim Integrated.
PeskyProducts has shared the board on OSH Park:
LiPoChargerTeensy3.1.V01
OSH Park 
Is there a list of parts for this board? I’m unsure what the cap values are and it’s hard to read the resistor values from the image.
Thanks!
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I’d recommend clicking the Contact button on:
https://www.tindie.com/stores/onehorse/
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