Eldritch Battery

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Eldritch Battery
Keystone
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

Spend Energy Shield before Mana for Skill Mana Costs : allows paying mana costs by spending energy shield.

  • Unlike Blood Magic or Lifetap SupportLifetap SupportSupport, Duration
    Icon: T
    Level: (1-20)
    Cost & Reservation Multiplier: 300%
    Requires Level 8Supports any non-blessing skill. Minions cannot gain the Lifetap buff.Supported Skills Cost Life instead of Mana
    Gain Lifetap after Spending a total of (23-273) Life on Upfront
    Costs and Effects of a Supported Skill
    Supported Skills deal (10-19)% more Damage while you have Lifetap
    Lifetap lasts 4 seconds

    Additional Effects From 1-20% Quality:
    Lifetap lasts +(0.1-2) seconds
    This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
    , this does not change mana costs into energy shield costs. The player still pays a mana cost, and can modify that cost with mana cost modifiers.
  • Energy shield recharge is not interrupted by energy shield spent to pay costs. Unless interrupted by damage to mana or energy shield, energy shield will continually recharge.[1][2]
  • Energy shield can only be spent for mana costs. Arcane Cloak will still spend mana, Apep's RageApep's Rage
    Omen Wand
    Wand
    Physical Damage: 33-61
    Critical Strike Chance: 8.00%
    Attacks per Second: 1.20
    Requires Level 53, 200 Int(27-31)% increased Spell DamageAdds (90-130) to (140-190) Chaos Damage to Spells
    (25-30)% increased Cast Speed
    +(5-10)% to Chaos Resistance
    Lose 40 Mana when you use a Skill
    Poisons you inflict deal Damage (30-50)% faster
    Apep's poison entraps, encircles,
    and engulfs the leaking mind of Man.
    will still cause mana loss.

Energy Shield protects Mana instead of Life: allows energy shield to protect mana from damage

  • Damage may be taken to mana through % of Damage is taken from Mana before Life or uniques like The Ivory TowerThe Ivory Tower
    Saint's Hauberk
    Armour: (443-496)
    Energy Shield: (76-85)
    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.
  • Damage that bypasses energy shield, such as chaos damage, will still bypass energy shield.
  • Damage to energy shield or mana will interrupt energy shield recharge.[3]

Eldritch Battery also removes the inherent 50% chance to ignore stun while you have energy shield[4] even when energy shield can still take damage by protecting mana.

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 ItemRequired levelStats
Replica Sorrow of the DivineReplica Sorrow of the Divine
Sulphur Flask
Lasts (10.00-12.00) Seconds
Consumes 40 of 60 Charges on use
40% increased Damage
Requires Level 27Creates Consecrated Ground on Use(25-50)% increased Duration
Eldritch Battery during Effect
Life Recovery from Flasks also applies to Energy Shield during 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 Flask27Creates Consecrated Ground on Use(25-50)% increased Duration
Eldritch Battery during Effect
Life Recovery from Flasks also applies to Energy Shield during Effect
Replica Soul TakerReplica Soul Taker
Siege Axe
One Handed Axe
Physical Damage: (163.2-190.4) to (264-308)
Critical Strike Chance: (8.00-9.00)%
Attacks per Second: 1.50
Weapon Range: 1.1 metres
Requires Level 59, 119 Str, 82 Dex(140-180)% increased Physical Damage
Adds 30 to 40 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(140-180)% increased Physical Damage
Adds 30 to 40 Physical Damage
(60-80)% increased Critical Strike Chance
+(20-25)% to Cold Resistance
Your Physical Damage can Freeze
Eldritch Battery
Skin of the LordsSkin of the Lords
Simple Robe
Movement Speed: -3%Item has no level requirement and Energy Shield (Hidden)
Sockets cannot be modified
+2 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>
CorruptedThe 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
+2 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
Crimson Dance
Divine Shield
Hex Master
Eldritch Battery
Elemental Equilibrium
Elemental Overload
Eternal Youth
Ghost Dance
Ghost Reaver
Glancing Blows
Iron Grip
Iron Reflexes
Iron Will
Lethe Shade
Magebane
Mind Over Matter
Minion Instability
Pain Attunement
Perfect Agony
Point Blank
Precise Technique
Resolute Technique
Runebinder
Imbalanced Guard
Solipsism
Supreme Ego
The Agnostic
The Impaler
Unwavering Stance
Vaal Pact
Versatile Combatant
Wicked Ward
Wind Dancer
Zealot's Oath
Corrupted
The Devouring DiademThe Devouring Diadem
Necromancer Circlet
Energy Shield: (154-204)Requires Level 54, 112 Int+1 to Level of Socketed Gems
Socketed Gems have 25% increased Reservation Efficiency
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 25% increased Reservation Efficiency
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
(10-12)% chance to Avoid Elemental Damage from Hits during Soul Gain Prevention
+(16-20)% to Cold and Chaos Resistances
+(31-35) to Dexterity and Intelligence
+(16-20)% to Fire and Chaos Resistances
+(16-20)% to Lightning and Chaos Resistances
(14-16)% increased Mine Throwing Speed
(36-40)% increased Duration of Ailments you inflict while Focused
+(31-35) to Strength and Dexterity
+(31-35) to Strength and Intelligence
Trigger Socketed Spells when you Focus, with a 0.25 second Cooldown
Focus has (5-8)% increased Cooldown Recovery Rate

Version history

Version Changes
3.14.0
  • Now clarified in the mod text that spent "Energy Shield before Mana for Skill Mana Costs", instead of just Cost [Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.]
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
    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.Deals 70% of your Maximum Life as Base Fire Damage per second
    Deals 70% of your Maximum Energy Shield as Base Fire Damage per second
    You Burn for 90% of your Maximum Life per second as Fire Damage
    You Burn for 70% of your Maximum Energy Shield per second as Fire Damage
    Grants (20-39)% more Spell Damage
    Base radius is (1.8-2.3) metres

    Additional Effects From 1-20% Quality:
    Base radius is (0.015-0.3) metres
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    .
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.

References