AAA Battery
TrinketRebirthUnlocked
How do you unlock AAA Battery?
Verified starting unlockSource data confirms that no unlock is required.
Automatically recharges the last energy slot of an activated item, effectively reducing recharge rates by one.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking AAA Battery leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13