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Borderlands 4 Pacemaker Review — Legendary Repair Kit
Published: 8/15/2026 · Updated: 11/15/2026 · As of 2026-07
| Rarity | Legendary |
|---|
| Type | Repair Kit |
|---|
| Manufacturer | Daedalus |
|---|
| Drop source | Horace, Horace's Oversight |
|---|
Red Text
You got my heartbeat going, baby, faster and faster.
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.
Even without using it, HP continuously recovers on its own, and the lower the HP, the faster the recovery, a “just holding” type repair kit. Daedalus-made. Because it is a passive recovery that does not require active operation, it pairs well with people who tend to forget recovery management or builds that want to focus on offense.
🧩 Red text source
“You got my heartbeat going, baby, faster and faster.” is a quote from country singer Carrie Underwood’s song “Faster” (MentalMars / fact-checked). Accelerating the heartbeat matches the name HeartPacemaker and the unique ability Pulsometer (pulse meter), and it ties into the effect where “the lower the HP, the faster the recovery (= heartbeat speeds up)”.
Note that the Japanese phrase “If you drop it, the heart’s thumping won’t stop” from the old record has not been confirmed as in-game text (the Japanese red text is (unverified)).
What kind of repair kit? (Beginner’s perspective)
- Daedalus-made repair kit. Passive (always) continuously recovers HP, and the lower the HP, the higher the recovery rate
- Even without conscious (active) activation, it recovers automatically, so for people who tend to forget recovery actions
- Continuous recovery amount is about 120 HP in a 2-stage burst, and burst frequency increases when near death ((unverified): numbers are based on Lootlemon summary)
Unique effect (mechanics)
Pulsometer: Passive continuously recovers HP. The lower the HP, the more the recovery rate rises.
- In-game: Passive HP recovery. Recovery speed increases when HP drops
- Web (Lootlemon): About 120 HP continuous recovery in a 2-stage burst. Burst frequency increases when HP drops (numbers are summary-based (unverified))
- Weakness: Recovery is a continuous (slow) type, so in situations where you take massive damage in one hit, it may not keep up
Drop farming
| Drop Source | Chance | Notes |
|---|
| Horace (Horace’s Oversight) | 9% | +2% × UVH |
| Moxxi’s Big Encore | 30% | |
Curated (Augments)
Each augment has an equal appearance rate (each 4.35% = 1/23). The [element] series has an additional 20% (1/5) to determine a specific element.
Damage
| Name | Effect |
|---|
| Amp | Next shot +200% damage |
| Elemental Affinity | +25% element damage (8 seconds) |
| Enrage | +30% damage dealt / +15% damage taken (8 seconds) |
| Fire Rate | +15% fire rate (8 seconds) |
| Hard Hitter | +50% melee damage (8 seconds) |
| Splash Damage | +25% splash damage (8 seconds) |
Damage Ability
| Name | Effect |
|---|
| Nova | [element] Nova generated |
| Splat | [element] Splat created |
Repair Kit Ability
| Name | Effect |
|---|
| Health Burst | After 8 seconds, adds 50% of initial recovery amount as additional recovery |
| Medic | Heals nearby allies for 50% of recovery amount |
| Overshield | Converts healing into an overshield |
| Power Cycle | Starts recharging the energy shield |
Durability
| Name | Effect |
|---|
| Elemental Immunity | [element] full immunity (3 seconds) |
| Elemental Resistance | +50% [element] resistance (8 seconds) |
| Leech | +30% life steal (8 seconds) |
| Overdose | +45% recovery received (8 seconds) |
| Tank | -50% damage taken (8 seconds) |
Utility
| Name | Effect |
|---|
| Accelerator | +100% Action SkillCD recovery speed (8 seconds) |
| Go Go Gadget | +50% ordnance CD recovery speed (8 seconds) |
| Reload Speed | +25% reload speed (8 seconds) |
| Speed | +40% movement speed (8 seconds) |
Passive (always active, no effect on use)
| Name | Effect |
|---|
| Everlasting | +20% recovery amount / +20% effect duration |
| Repkit Cooling | -33% cooldown |
Build compatibility
| Vault Hunter | Compatibility | Notes |
|---|
| Rafa | ⭐⭐⭐ | General use |
| Vex | ⭐⭐⭐ | Good synergy with multi-hit builds that want to focus on offense |
| Amon | ⭐⭐⭐ | General use |
| C4SH | ⭐⭐⭐ | General use |
Summary
- Passive HP continuous recovery, a “just holding” type that recovers faster the closer to death
- No need to manage recovery = for builds that want to focus on offense
- The red text originates from Carrie Underwood’s “Faster” (matches HeartPacemaker)
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, with no conversion, rounding, or interpolation.
| Level range | Main stats | Observed units |
|---|
| Lv33 | 1,340 recovery | 1 |
- Observed prefixes (most common): Standard ×1
FAQ
What is the unique effect of Pacemaker?
Pulsometer: Passively regenerates HP continuously. The lower your HP, the higher the regeneration rate.
Where can you obtain Pacemaker?
It drops from Horace, Horace's Oversight.