Activated items can store an extra level of charge, allowing them to be used twice in one room.
Extra charges appear in yellow over the normal charge meter.
Notes[]
The Battery does not affect self-recharging activated items.
Self-recharging active items can charge the yellow meter, allowing Isaac to use them twice immediately.
If the recharge time of Isaac's held item is less than 6 and he picks up a Lil' Battery, it'll overcharge the item for the remaining charges left in the Lil' Battery.
Friendly Ball: Walking over a captured enemy will double charge the ball, allowing the enemy to be released, and allowing to catch a new one in the same room, and the process repeats. This allows the Friendly Ball to be used much, much more often, and gathering many more friends. Note: trying to catch a new enemy while the old one is in the process of spawning will result in the ball phasing through, catching nothing, thus wasting charge.
Notched Axe: Causes remaining charge from the previous floor to carry over to the next one.
This article is about the item. For the pickup, see Batteries. For other uses, see Battery (Disambiguation).
Self-recharging active items can charge the yellow meter, allowing Isaac to use them twice immediately.
Self-recharging active items can charge the yellow meter, allowing Isaac to use them twice immediately.
If the recharge time of Isaac's held item is less than 6 and he picks up a 
Active Item Modifiers 
Batteries 
The Binding of Isaac: Rebirth 
Achievements
Attributes
Bosses
Cards and Runes
Challenges
Chapters
Characters
Co-op
Items
Item pools
Monsters
Objects
Pickups
Pills
Rooms
Seeds
Transformations
Trinkets
