Single 3D printed twin bolt cap (Black). Required quantity for a single battery is series modules -1. For example if you have a 10S battery, you will require 9 of the twin bolt caps.
Disclaimer. By purchasing this product, the buyer/user agrees that he/she understands the safety precautions needed to be taken building and using battery packs made out of 18650 lithium ion cells, that he/she bares full responsibilities of risks involved in building, using and maintaining battery packs assembled out of 18650 cells, and does not hold 18650.lt, responsible for any accidents, injury to persons, or property damage that may occur.