Eldritch Battery

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.

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 ). 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

Item	Base Item		Stats

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: 18Requires 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 radiusPlace 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.