GreenSense PCB V2.0 was developed to provide a modular way to add sensor card as per requirement. We moved the battery out of the PCB to reduce the board size ( as this was developed keeping one of our enclosure in mind, but now we realized it was a bad decision ).
V2.0 provides us facility to power the board using either 5V or 12V or 3.7V LiPo battery ( for power-optimized use cases ).