Modules, in my arsenal, used for portable (battery) low power operation of the Teensy 3.
Power on/off modules with power Mosfet and kill input (auto shutdown from the Teensy 3 GPIO):
http://www.pololu.com/catalog/product/751
http://www.adafruit.com/products/1400
Boost converters modules that uses AA battery power and boost it up to 5 VDC for the Teensy 3:
http://www.pololu.com/catalog/product/791
https://www.sparkfun.com/products/10968
https://www.sparkfun.com/products/10255
Note: I built my own low cost boost converter ( LTC3525-5 ) board (for AA battery power input) using only 3 components.
View attachment Boost_Converter_Power_Switch_R1.pdf
Power on/off modules with power Mosfet and kill input (auto shutdown from the Teensy 3 GPIO):
http://www.pololu.com/catalog/product/751
http://www.adafruit.com/products/1400
Boost converters modules that uses AA battery power and boost it up to 5 VDC for the Teensy 3:
http://www.pololu.com/catalog/product/791
https://www.sparkfun.com/products/10968
https://www.sparkfun.com/products/10255
Note: I built my own low cost boost converter ( LTC3525-5 ) board (for AA battery power input) using only 3 components.
View attachment Boost_Converter_Power_Switch_R1.pdf
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