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Borderlands 4 Defibrillator Review — Legendary Repair Kit

Published: 8/15/2026 · Updated: 11/15/2026 · As of 2026-07

RarityLegendary
TypeRepair Kit
ManufacturerJakobs
Drop sourceCore Observer (Blacklime Bunker, The Howl / Fadefields)
Red Text
CLEAR!

This review was machine-translated from the Japanese original. Numbers are checked against the original; if the wording reads oddly, the Japanese version is authoritative.

“The closer you are to death, the more charge returns” pinch-specialized repair kit. Made by Jakobs, when HP falls below 20% there is a 50% chance that the repair kit’s charge recovers by 1. True to its name “Defibrillator”, the more dangerous the situation, the more the recovery count is amplified, making it an emergency resuscitation type.

🧩 Red text source “CLEAR!” is the shout used in medical settings just before the Defibrillator (Defibrillator) delivers electric Shock to a patient, warning those nearby “don’t touch = stay back”. It’s a staple phrase in drama and movie resuscitation scenes, directly tied to the item name (more a medical trope reference than a specific work citation. Web verification).

What kind of repair kit? (Beginner’s perspective)

Unique Effects (Mechanics)

When HP falls below 20%, there is a 50% chance to recover 1 charge of the repair kit.

Drop Farming

Drop SourceChanceNotes
Core Observer (Blacklime Bunker, The Howl / Fadefields)9% (+2%×UVH rank) / Fixed 30% on Featured weeksBoss drop. 🔴 2026-08-13 to 08-20 is during Big Encore Featured

Summary

Measured Stats (Aggregate of Owned Units)

This is an aggregation of measured values read from screenshots of owned units. The range is the observed minimum to maximum, without conversion, rounding, or interpolation.

Level RangeMain StatsObserved Units
Lv47-484,943 recovery / charge - / CD 17s ~ 5,206 recovery / charge - / CD 17s2

FAQ

What is the unique effect of Defibrillator?

When HP falls to 20% or lower, there is a 50% chance to recover one charge of the repair kit.

Where can I obtain Defibrillator?

It drops from Core Observer (Blacklime Bunker, The Howl / Fadefields). Drop rate is 9% (+2%×UVH rank) / during Featured weeks it is a fixed 30% (does not scale with UVH).