Battery Pack - The Binding of Isaac

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Battery Pack is a passive item in The Binding of Isaac, added in the Repentance DLC.

Spawns 2-4 random batteries.

Fully charges Isaac's active item.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.

Battery Pack can be found in the following item pools:

Name	Weight
Shop	1.0/1.0
Battery Bum	1.0/1.0
Greed Shop	1.0/1.0

The following tags are applied to this item:

Id	Description
battery	Contributes towards unlocking Jumper Cables.
offensive	Can appear for Tainted Lost.

The following special synergies and interactions for Battery Pack have been documented.

Mod	Item	Synergy
---	Abyss	Spawns an electrical cyan locust that has a chance to chain-zap enemies similar to the effects of Jacob's Ladder. Zaps deal 0.1 damage.

* Note that not all possible synergies and interactions are listed here.

Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.

Battery Pack

• Fully recharges the held active item on pickup
• Spawns 2-4 random battery pickups
• Abyss: x1 shocking locust .5x Isaac's damage