Empty Thunder Bottle

The Empty Thunder Bottle is an item.

Usage
The player can charge an Empty Thunder Bottle by being struck by lightning and through other methods. Once completely charged up (at 50,000 Charges), it becomes a Thunder in a Bottle.

Much like the Expertise enchantment, only one Empty Thunder Bottle will have charge added to it at a time when multiple are in a player's inventory, starting with the leftmost hotbar slot.

Pulse Ring
Full Thunder Bottles are used to upgrade the rarity of the Pulse Ring.

Gallery
The various textures associated with each fill level are shown below.

Trivia

 * One of the easiest ways to get Thunder Charges is to use a Trophy Hunter Armor Set and semi-AFK with a Thunder spawned nearby.