Where is the best place to
buy a 510-510 connector?
Depends on what you want it for. If for charging an eGo on a mains charger go with the 510 adapter from Totally Wicked. If you want to try to fit an eGo atty on a
mod:
cut and paste from another question....
I've been looking for one since day one of the eGos and haven't found any yet. Seems like a natural for a 3rd party to make. The 510 to 901 adapter with another 901 to 510 adapter is a bit shorter than the 510 adapter but still too long for most mods unless you get someone to recess it exactly. That's possible - Bartlebys were originally recessed and Ken from 'boxmods' might take a custom job.
Edit:
Just found this and ordered one. Not sure how it will fit but it looks more promising than the other workarounds.
510 modders connector - Avid Vaper