The elixir Storage holds your elixir that your elixir mines have produces or that you have looted in raids. With the elixir in your elixir storage you can purchase and upgrade buildings in your village.
When you upgrade a elixir storage it still works.
Attackers can steal 20% of the total elixir stored in your elixir storage. That is a maximum of 198k elixir from the storages.
Most people protect the elixir storage very well because elixir is a precious metal in the game.
It costs elixir to upgrade the elixir storage. A level 11 elixir storage can store 2.000.000 million elixir. At townhall level 9 you can have 4 elixir storages.
Previous：Clash of Clans Base Design – Building A Good Defensive Base
Next：How To Attack With Dragons