Binding of Isaac: Rebirth Wiki

AAA Battery is a trinket.

Effect[ | ]

  • If an activated item would regain its second to last charge upon clearing a room, it is instead fully charged. This effectively reduces its charge time by one bar.

Notes[ | ]

  • Does not affect items with only one bar of charge or those with automatic recharge.
  • Recharging an item by taking damage with Collectible Habit iconHabit, the instant charge given by Collectible 9 Volt icon9 Volt, or any source of charge other than clearing a room, will not activate the trinket's effect.

Synergies[ | ]

  • Collectible 9 Volt icon9 Volt: If active item requires three or more charges, trinket gives an extra charge, effectively utilizing itself with 9 Volt.
  • (in Repentance)Golden Trinket Golden Trinket / Collectible Mom's Box iconMom's Box: Items require one charge unit fewer to get fully charged.
  • (in Afterbirth † and Repentance)Collectible Jacob's Ladder iconJacob's Ladder / (in Repentance)Collectible 120 Volt icon120 Volt: Increases the amount of arcs a spark can generate.
  • (in Afterbirth † and Repentance)Collectible Schoolbag iconSchoolbag: The trinket activates based on the primary item slot, but it grants an extra point of charge to the second item as well.

Interactions[ | ]

  • (in Repentance)Collectible 4.5 Volt icon4.5 Volt: AAA Battery has no effect after picking up 4.5 Volt
  • Collectible The Battery iconThe Battery: No effect on the second level charge.
  • (except in Rebirth)Watch BatteryWatch Battery: Watch Battery triggering after clearing a room will also trigger AAA Battery, provided the activated item was missing exactly 3 charges prior to clearing the room.

In-game Footage[ | ]

Unlockable Achievements[ | ]

Gallery[ | ]