[ot_caving] I need four 1/4" steel balls

[Don Cooper]

I measured a difference of 6mm between AA and AAA batteries.
In order to charge L-ion AAA batteries in my AA charger, I need four
conductors to take up the slack.
I figured 6mm is about .2456".  Brass, Bronze or Copper would also work.
-thanks,
WaVy