Well, what I did was cut a small, maybe 1/8 inch wide, piece of copper. Shaped it into a "J" shape. The first try was to super glue it into the bottom of the case, inserted the tubes, and then removed and insert the battery about a dozen times. It finally cut itself loose from the glue due to some slight rocking motion. 2nd try was the same thing except I used shrink wrap around the copper except at the contact points (battery and head unit pin), shrank it down, and glued it into place again, this time the shrink wrap is what is glued in place. Allows for a bit of rocking, but since it doesn't move much, it hasn't broken free yet.
My 1st and new Vamo V5 is due in the next couple of days, still in hong kong, but I will take a few pics of the connection since I'm remaking the case and changing some small things.
edit: Oh yeah, the original idea of spacers turned into a fiasco, I was trying to hard. Once I set back and just looked the answer presented itself.