replace USB connector with a version that has actual slow primitive (which
means moving to latest pcb-rnd 4-layer template)

fix the short that's apparently been there a while?  v_lipo to ground?

possibly thermally relieve the battery negative 0.25" spade

pull resistors away from through-hole LEDs to ease lead trimming

2024.04.20
- on all units shipped to date with INA180A4IDBVT, the max current the current
  sensor can read and stay within 3.3V ADC input range is 16.5A.  The intent
  was for the full scale range to be 150A, but that would require the A1 part
  not the A4 part!  We may be over-voltaging that ADC input on existing 
  product in the field during drag-race conditions?

  Let's just eliminate the current sensor entirely for future production runs