Precision Hydronic Cooler
Last updated 2026-08-15
"When taking action, no matter how fast your heart is pounding, you've gotta keep a cool head... Huh? Fighting? No, I'm talking about making machines!"
Precision Hydronic Cooler is Aino's Elemental Burst.
Gameplay Notes
- Water balls are fired every 1.5 seconds and up to 9 can be fired during the skill's duration.
- With Moonsign: Ascendant Gleam, water balls are fired every 0.75 seconds and up to 20 can be fired during the skill's duration.
- Passive Effects
- Passive Talent 1,

Modular Efficiency Protocol: "Aino will be granted the corresponding buff effects based on the party's Moonsign. Moonsign: Ascendant Gleam: Her Elemental Burst Precision Hydronic Cooler is enhanced: The Cool Your Jets Ducky will fire water balls more frequently, and the water balls will deal AoE Hydro DMG over a larger area of effect."
- Constellation Effects
- Constellation Level 1,

The Theory of Ash—Field Equilibrium: "After Aino uses her Elemental Skill Musecatcher or her Elemental Burst Precision Hydronic Cooler, her Elemental Mastery will be increased by 80. The Elemental Mastery of other nearby active party members will be increased by 80 for 15s. The Elemental Mastery-increasing effects of this Constellation do not stack." - Constellation Level 2,

The Principle of Transference in Gear Differentials: "If Aino is off-field while the Focused Hydronic Cooling Zone of her Elemental Burst Precision Hydronic Cooler is active, when your active party member hits a nearby opponent with an attack, the Cool Your Jets Ducky will fire an additional water ball at that opponent, dealing AoE Hydro DMG equal to 25% of Aino's ATK and 100% of her Elemental Mastery. This DMG is considered Elemental Burst DMG. This effect can be triggered once every 5s." - Constellation Level 3,

Cake and the Art of Mechanism Repair: Increases this talent's level by 3, up to a maximum of 15. - Constellation Level 6,

The Burden of Creative Genius: "For the next 15s after using the Elemental Burst Precision Hydronic Cooler, DMG from nearby active characters' Electro-Charged, Bloom, Lunar-Charged, Lunar-Bloom, and Lunar-Crystallize reactions is increased by 15%. Moonsign: Ascendant Gleam: DMG from the aforementioned reactions will be further increased by 20%."
Advanced Properties
| Gauge Units | Internal Cooldown | Poise Damage | Stagger Effect | Blunt | ||||
|---|---|---|---|---|---|---|---|---|
| Tag | Type | S. L. | H. F. | V. F. | ||||
| Water Ball DMG (Normal) | 1U | Elemental Burst | 2.5s/3 Hits | 25 | Light | 200 | 0 | ✘ |
| Water Ball DMG (Enhanced) | 1U | Elemental Burst Enhanced | 1.8s | 25 | Light | 200 | 0 | ✘ |
Preview
Attribute Scaling
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water Ball DMG (%) | 20.11 | 21.62 | 23.13 | 25.14 | 26.65 | 28.16 | 30.17 | 32.18 | 34.19 | 36.2 | 38.21 | 40.22 | 42.74 |
| Duration | 14s | ||||||||||||
| CD | 13.5s | ||||||||||||
| Energy Cost | 50 | ||||||||||||
Talent Leveling
| Talent Level (Ascension) | Materials [Subtotal] |
|---|---|
| 1 → 2 (2✦) | |
| 2 → 3 (3✦) | |
| 3 → 4 (3✦) | |
| 4 → 5 (4✦) | |
| 5 → 6 (4✦) | |
| 6 → 7 (5✦) | |
| 7 → 8 (5✦) | |
| 8 → 9 (6✦) | |
| 9 → 10 (6✦) |
Total Cost (1 → 10 for one talent)
1,652,500 Mora
1,652,500 MoraVoice-Overs
Main article: Aino/Voice-Overs/Japanese § Combat
- 見て見て、虹だよ! Mite mite, niji da yo!
- バシャバシャ水弾だ! Bashabasha suidan da!
- 水遊びの時間だよ! Mizuasobi no jikan da yo!
Other Languages
| Language | Official Name | Literal Meaning |
|---|---|---|
| English | Precision Hydronic Cooler | — |
| Chinese (Simplified) | 精密水冷仪 Jīngmì Shuǐlěng-yí | Precision Water-Cooling Device |
| Chinese (Traditional) | 精密水冷儀 Jīngmì Shuǐlěng-yí | |
| Japanese | お水ひえひえ装置 O-mizu Hie Hie Souchi | Water Chilling Device |
| Korean | 정밀 냉수기 Jeongmil Naengsugi | Precision Water Cooler |
| Spanish | Refrigerador hidrónico de precisión | Precision Hydronic Refrigerator |
| French | Refroidisseur hydronique de précision | Precision Hydronic Cooler |
| Russian | Точный водоохладитель Tochnyy vodookhladitel' | Precise Water Cooler |
| Thai | Precision Hydronic Cooler | — |
| Vietnamese | Máy Làm Lạnh Tinh Xảo | Ingenious Refrigerator |
| German | Präzises Wasserkühlgerät | Precise Water-Cooling Device |
| Indonesian | Precision Hydronic Cooler | — |
| Portuguese | Dispositivo Refrigerador Preciso | Precise Refrigerator Device |
| Turkish | Hassas Hidronik Soğutucu | Delicate Hydronic Cooler |
| Italian | Raffreddatore idronico di precisione | Precision Hydronic Cooler |
Change History
Released in Version "Luna I"
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