Extension Cord
TrinketAfterbirth+Locked
How do you unlock Extension Cord?
In The Binding of Isaac, Extension Cord is unlocked by unlocking Extension Cord (Achievement).
Structured pathSource-backed requirements are mapped into trackable steps.
Bolts of electricity arc between Isaac and his familiars, damaging any enemies between them.
How to unlock: Have The Battery, 9 Volt, and Car Battery in Isaac's collection
What unlocking Extension Cord leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13