Battery Pack
ItemRepentanceUnlocked
passiveGame ID 603★★★★
How do you unlock Battery Pack?
Verified starting unlockSource data confirms that no unlock is required.
Recharges Isaac's currently held active item and drops 2-4 batteries.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Battery Pack leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13