Tools And Stuff

Here's a diagram showing how to make easy to solder Litz wire ends.

You might want to brush on some laquer or enamel over the exposed end of the
wire  if you expect the wires to move around and come in contact with
each other or bare copper circuit board. I had a plug of a 60maH lipoly
short out on one of the Litz wire leads. Be careful with Litz wire and 
lithium polymer batteries. 

fold the litz over a pin(about 2 or 3 mm length of wire)
hold 2 strands with finger and thumb
rotate pin same direction litz is spun
remove pin
apply flux to eylet with toothpick
get a dab of solder on your iron tip(needs to be smaller dia than eylet)
push iron tip into eylet
wait till the smoke dissapears
twist the eyelet around a few times
pull eylet from iron tip
touch up the solder and fill up the eylet if it did not fill up on removal
your done - it takes less time to do than to explain and you can keep your 
iron in one hand when you get good at it. Once you have the eylet filled 
with solder all you have to do is touch it to whatever you want to solder 
it to the touch the iron to it , remove and let cool then you have a really
nice strong solder joint.