9 Volt is a passive item in The Binding of Isaac.

On pickupFully charges Isaac's active item.

While heldGrants 1 bar of charge when using any active item that has more than 1 bar of recharge time.

If the current active item has a recharge time of 1 bar, then it will be changed to a timed recharge of 15 seconds.

Recharging can happen only in a room with enemies.

Makes timed recharge items start at half charge, reducing their recharge time by 50%.

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.

9 Volt can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for 9 Volt have been documented.

* 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.

9 Volt

• Automatically restores 1 charge bar after active item use
• Items with a 1-room recharge become an automatic timed recharge
• Fully charges Isaac's active item on pickup
• Abyss: x1 shocking locust 1x Isaac's damage

• Check out the item description on the external Isaac Wiki.