Those small 2 wire plugs that are found on Battery Tenders?  They have 2
bullet plugs and opposed sockets, allowing one to change the connection
from the charger to the end of the output.  What're those called, so's I
can google-up a place to get a few more for my various machines.  I have
pigtails with those plugs on my road motos, and I also have one now on the
output of my solar panels.  Being off the grid right now, I can't power the
battery tender but I do collect lots of sun that I want to put in  various
batteries.  I do have one plug with alligator clips, but it is about shot.
So what're those plugs called, or better a link to a.good source for them?