-add polarity protection FET to the board so we eliminate dirpy dauther card
-
need to move DIP switch away from mounting hole, actual switch is larger than
the current silksreen rectangle and makes putting that nut on nearly impossible
+
+transfer LED color indications to the other side of the PCB
+
+possibly thermally relieve the battery negative 0.25" spade
+
+pull resistors away from through-hole LEDs to ease lead trimming