They fit the lavatube and the tox 18650 tube perfectly.
I sent one to P Busardo for testing.
Here is a
thread from a different forum:
Anyone Tested or want to test these alleged panasonic NCR 18650A 3100mAh batteries?
The Manufacturer of the Lambo (J-lin) confirmed these
batteries are perfectly fine to use with the Lambo and lavatubes. Although unprotected, like the other lavatube batteries, the varivolt mod has the built in safety features.
I have found these green 3100mah ncr18650a panasonic batteries to be the largest flat top that will fit with the end caps screwing on all the way. The trustfire 3000mah is a hair big, but fits, and the cap does not screw on all the way. The same goes for larger aw3000mah.