Rather than creating a new thread I though I'd ask a relevant question here
I am looking to build a laser with essentially the same design elements as the one above and would like to have an led indicator
which is always on when the batteries are in regardless of whether or not the laser is powered on. This will provide an added safety mechanism since it provides the user with a visual indication of loaded batteries and would ensure that the user takes the batteries out once finished.
As I understand this would require putting the led and resistor in parallel with the positive and negative inputs of the
switch rather than the driver. Would this pose any detrimental effect on the components of the laser? I'll be using an x-drive v6 along with the supplied momentary switch that came with the leadlight.