Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki
Disambig.png This article is about the pickup. For the item, see The Battery. For other uses, see Battery (Disambiguation).

Lil' Battery[]

Lil' Battery.png

Removed in Repentance Lil' Battery will fully charge Isaac's activated item upon pickup.

Added in Repentance Lil' Battery will recharge 6 bars of Isaac's activated item, but does not overcharge it.

Lil' Battery will only charge the currently held active item. Holding two actives (e.g. with Added in Afterbirth †15►Schoolbag Schoolbag) will not charge both items upon pickup.

Added in Repentance Micro Battery[]

Micro Battery.png

A Micro Battery provides two bars of charge for Isaac's held active item when picked up.

Added in Repentance Mega Battery[]

Mega Battery.png

A Mega Battery will charge Isaac's activated item twice. It will double charge items with over 6 bars.

Added in Repentance Golden Battery[]

Golden Battery.png

A Golden Battery completely recharges Isaac's held item, but also deals a full heart of damage. Another golden battery will spawn in a random room, but it is not shown on the map until discovered.

Unlocked by: Added in RepentanceGolden Battery Defeat Mega Satan as Tainted Forgotten Tainted Forgotten


  • Added in Afterbirth / Removed in Repentance 15►Mega Blast Mega Blast only gains 3 charges per battery.
  • If Isaac has 15►The Battery The Battery and the recharge time for his held item is less than 6, Lil' Battery will overcharge the item for the remaining charges left in the Lil' Battery.
  • 15►Holy Mantle Holy Mantle and similar effects will block the damage from the Golden Battery, allowing for infinite usage of active items on that floor.
  • Golden Batteries can re-appear in undiscovered rooms, including both Secret Rooms.

Unlockable Achievements[]


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