Replacing batteries for Dev Blinks is quite straight-forward after you know a couple of things.
- The top of the Blinks PCB has the text
C1and all text is oriented this way
- One corner of the Blinks plastic base is different than the others, it has a little hood that the top corner fits underneath.
- The battery should go in with the + side down
- Use a #00 Phillips head screw driver to avoid stripping the screws