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Eldritch Battery
Keystone
KeystoneEldritchBattery passive skill icon.png
Spend Energy Shield before Mana for Skill Mana Costs
Energy Shield protects Mana instead of Life
50% less Energy Shield Recharge Rate [1]
What need have I for defence when my enemies are reduced to ash and splinters?

Energy Shield shown over mana, instead of life.

Eldritch Battery (often referred to as EB) is a keystone passive skill that makes energy shield protect mana instead of life.

Mechanics

Energy shield protects mana instead of life. All modifiers to energy shield apply normally but it is not affected by modifiers to mana or mana regeneration. Energy shield recharge and recovery through Zealot's Oath or Ghost Reaver function normally. Any reductions to mana (e.g. skill costs) will instead reduce energy shield by the same amount.

Taking life damage or spending energy shield on skill cost will not interrupt energy shield recharge.[1]

With regards to skills like Blood Rage and Righteous Fire, Energy Shield is still counted in the degeneration applied to health.

Eldritch Battery also causes energy shields to no longer grant a chance to avoid stun.

Eldritch Battery does not protect mana against Chaos damage that is redirected to mana (ex. Mind Over Matter or The Ivory TowerThe Ivory Tower
Saint's Hauberk
Quality: +20%
Armour: 531
Energy Shield: 87
Movement Speed: -5%
Requires Level 67, 109 Str, 94 Int+(40-70) to Intelligence
+30 to maximum Energy Shield per 100 Reserved Life
+(80-100) to maximum Mana
Regenerate 2% of Energy Shield per second
Chaos Damage is taken from Mana before Life
The mind is a filter through which anarchy becomes order.
). Chaos Damage will apply directly to the underlying mana pool, and failing that, life pool. Non-Chaos damage types redirected to mana drain energy shield first, but also interrupt energy shield recharge, unlike spending mana on skill costs.

Location

Eldritch Battery is a standalone keystone located on the upper right edge of the skill tree.

Class Distance from start
Witch 9
Shadow 11
Scion 15
Templar 16
Ranger 19
Marauder 23
Duelist 25

Related unique items

ItemBase ItemLvl.Stats
Skin of the LordsSkin of the Lords
Simple Robe
Quality: +20%
Movement Speed: -3%
Item has no level requirement and Energy Shield (Hidden)
Sockets cannot be modified
+1 to Level of Socketed Gems
100% increased Global Defences
You can only Socket Corrupted Gems in this item
Item has 6 Sockets and is fully linked (Hidden)
<Random Keystone>
Corrupted
The Lords are chosen so carefully.
Only they may grace His flesh.
Simple Robe1Item has no level requirement and Energy Shield (Hidden)
Sockets cannot be modified
+1 to Level of Socketed Gems
100% increased Global Defences
You can only Socket Corrupted Gems in this item
Item has 6 Sockets and is fully linked (Hidden)
<Random Keystone>
Acrobatics
Ancestral Bond
Arrow Dancing
Avatar of Fire
Blood Magic
Call to Arms
Conduit
Corrupted Soul
Crimson Dance
Doomsday
Eldritch Battery
Elemental Equilibrium
Elemental Equilibrium
Elemental Overload
Elemental Overload
Eternal Youth
Ghost Reaver
Glancing Blows
Hollow Palm Technique
Iron Grip
Iron Reflexes
Mind Over Matter
Minion Instability
Mortal Conviction
Pain Attunement
Perfect Agony
Phase Acrobatics
Point Blank
Resolute Technique
Runebinder
Imbalanced Guard
Supreme Ego
The Agnostic
The Impaler
Unwavering Stance
Vaal Pact
Wicked Ward
Wind Dancer
Zealot's Oath

Corrupted
Replica Sorrow of the DivineReplica Sorrow of the Divine
Sulphur Flask
Lasts (5.00-6.00) Seconds
Consumes 20 of 60 Charges on use
40% increased Damage
Requires Level 35Creates Consecrated Ground on Use(25-50)% increased Duration
Eldritch Battery during Flask effect
Life Recovery from Flasks also applies to Energy Shield during Flask Effect
"Success! Prototype #54 has tapped into that sliver of divinity that exists within.
Faith fuels the flesh, and the flesh fuels the fire..."
Right click to drink. Can only hold charges while in belt. Refills as you kill monsters.
Sulphur Flask35Creates Consecrated Ground on Use(25-50)% increased Duration
Eldritch Battery during Flask effect
Life Recovery from Flasks also applies to Energy Shield during Flask Effect
The Devouring DiademThe Devouring Diadem
Necromancer Circlet
Quality: +20%
Energy Shield: (156-176)
Requires Level 54, 112 Int+1 to Level of Socketed Gems
Socketed Gems have 20% reduced Mana Reservation
Trigger Level 15 Feast of Flesh every 5 seconds
(180-220)% increased Energy Shield
10% chance for Energy Shield Recharge to start when you use a Skill
Eldritch Battery
Veiled Suffix
The spirit hungers for the flesh.Take this item to Jun Ortoi to have her Unveil it.
Necromancer Circlet54+1 to Level of Socketed Gems
Socketed Gems have 20% reduced Mana Reservation
Trigger Level 15 Feast of Flesh every 5 seconds
(180-220)% increased Energy Shield
10% chance for Energy Shield Recharge to start when you use a Skill
Eldritch Battery
Veiled Suffix
Replica Soul TakerReplica Soul Taker
Siege Axe
One Handed Axe
Quality: +20%
Physical Damage: (105.6-124.8) to (198-234)
Critical Strike Chance: (8.00%-9.00%)
Attacks per Second: 1.50
Weapon Range: 11
Requires Level 59, 119 Str, 82 Dex(100-140)% increased Physical Damage
Adds 10 to 20 Physical Damage
(60-80)% increased Critical Strike Chance
+(20-25)% to Cold Resistance
Your Physical Damage can Freeze
Eldritch Battery
"Nothing feels so smooth in the hand as Prototype #66.
Results like these may justify everything we do here."
Siege Axe59(100-140)% increased Physical Damage
Adds 10 to 20 Physical Damage
(60-80)% increased Critical Strike Chance
+(20-25)% to Cold Resistance
Your Physical Damage can Freeze
Eldritch Battery

References

  1. Jain_GGG (December 10, 2018). "Eldritch Battery Bug". Official Path of Exile Forums. Retrieved February 28, 2019.


Version history

Version Changes
3.14.0
  • (Not in patch note) Now clarified in the mod text that spent "Energy Shield before Mana for Skill Mana Costs", instead of just Cost
3.5.0
  • Now causes you to have 50% less Energy Shield Recharge Rate.
  • Energy Shield Recharge is no longer interrupted by non-damage changes to your Life or Energy Shield, such as when you spend your Energy Shield on skills via Eldritch Battery.
2.0.2
  • Fixed a bug where players with Eldritch Battery would spend energy shield to cast spells which reserved mana.
2.0.1
  • Fixed a recently introduced bug where Eldritch Battery prevented the life degeneration of Righteous FireRighteous FireSpell, AoE, Fire
    Level: (1-20)
    Cooldown Time: 0.30 sec
    Can Store 1 Use(s)
    Cast Time: Instant
    Radius: 18
    Requires Level 16Engulfs you in magical fire that rapidly burns you and nearby enemies. Your spell damage is substantially increased while under this effect. The effect ends when you have 1 life remaining.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Burning Damage0.5% increased Area of EffectBuff Grants 1% increased Spell DamageGrants (20-39)% more Spell Damage
    Deals 20% of your Maximum Life as Base Fire Damage per second
    You Burn for 90% of your Maximum Life per second as Fire Damage
    Deals 20% of your Maximum Energy Shield as Base Fire Damage per second
    You Burn for 70% of your Maximum Energy Shield per second as Fire Damage
    Deals (35.8-1541.8) Base Fire Damage per second
    +(0-5) to radius
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Righteous Fire skill icon.png
    .
2.0.0
  • Eldritch Battery now causes Energy Shield to protect Mana instead of Life.
    (Old effect: Converts all Energy Shield into Mana)
0.9.8e
  • Fixed a server crash related to the Discipline aura and Eldritch Battery.
0.9.4
  • Introduced to the game.
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