battery pack

[mygrumpy]

Hi all. Anybody got a Powabyke/Tryke. What i need to know is,what is the round silver thing next to the fuse holder on the battery box. do i need it when i build a smaller battery box. John

 

[andrewelectricbike1]

Hows about a picture?

 

[Luciosch]

hello everyone, 15 years later I have the same question!
See the attached picture please
Thank you.