I want to switch from using disposable 9V blocks to a proper setup of 3.7V LiPolys for all my portable Arduino (Uno/Mega) projects consisting of:
- only 3.7V LiPo units
- upconverter (to 5V)
- Is this generally a good idea? Or is there a better solution for portable Arduino power?
- How should I actually hook the LiPolys up to the Arduino? They usually ship with JST connectors. Should I use the Vin/GND Pins or should I build my own JST/DC-Connector adaptor? I want to create a robust, pluggable solution.
- Am I actually losing power twice that way (once in the upconverter and then in the Arduino voltage regulator)?