I know that it is possible to connect two batteries to Axon II, but I don't know how.
I saw the video "Axon II MCU Power Selection", where it appears that you have to desolder 2 pins on the board. What to do after that ? Is it that you directly connect the 2 batteries to the Axon, one to the pin labeled Bat & the other one to G3. Instead, can i connect both batteries directly to the ON/OFF switch, without the need to desolder the pins?