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Borderlands 4 Guide

How to Unlock the Legendary Defibrillator Repkit

Legendary Loot
Repkits
Updated on Sep 29, 2025
Sep 29, 2025

Overview

Defibrillator is a Jakobs Repkit.

Defibrillator Automatically restores HP on Second Wind.

this Repkit best for leveling New Vault Hunters when you are usure what build you are working toward.


How to Unlock

Unlock Location:

  • Continue through the story until reaching The Howl in the The Fadefields area.
  • You will find a Order Bunker, at the end you will encounter the boss Core Observer.

Farm Method:

  • Defeat Core Observer at the end of the Order Bunker "Blacklime Bunker".
  • Use the Encore Machine nearby to reset the fight.
  • Repeatedly defeat Core Observer until Defibrillator drops.

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