I’d like to build a magnetic charging stand that gives an approximated % charge readout. This should be possible as the cable chargers indicate when charged so they must be able to read the voltage of the cell inside the light somehow. Don’t know how though as the terminals on the magnetic cap read about 2.6v when the cell is at 4v so there’s some kind of interface, which makes sense as you wouldn’t want a lithium cell connected directly to exposed terminals.
If anyone has investigated this and understands how they work please let me know!
