The insulation on the wires is too big to fit in the JST SM contacts.
Wire size (insulation) is 2 mm diameter. It just won't fit.
First, does it really matter? Crimps seem really strong--I can't pull the wire out of the crimp.
If it does, can some one recommend a slightly larger connector that's easy to crimp? 1.5 amps, low voltage rating.
Just two wires--application is for adding a crimp connector to the 12V side of a 12V to 5V DC/DC.