What are these "bullet" connectors

[jfortier]

I'm trying to figure out what these connectors are. They are 4mm OD on the male contact end and are between my battery and controller.

 

[PaPaSteve]

Maybe a clue here :

"The electronic connector book" - A book by Davide Andrea

This link is in the Knowledgebase ribbon on top of the page.

 

[jfortier]

Maybe a clue here :

"The electronic connector book" - A book by Davide Andrea

This link is in the Knowledgebase ribbon on top of the page.

Thank you. No joy though. Great resource though!