4 ms·It's own power source... Let me guess, solar cells? Batteries? A separate power plug?by cubefox 4mo agoIt's own power source... Let me guess, solar cells? Batteries? A separate power plug?jdiff 4mo agoJust a lithium battery.cubefox 4mo agoNow I wonder how it gets recharged.jdiff 4mo agoFeather has a charging circuit on board, and its usb port has a channel carved out for it and is close to the edge