How often does your X-Bow need to be reloaded?

How long does it take for an X-Bows ammo to be completely deplenished and you have to reload it again? I'm am TH8 so I was just wondering how often you have to spend the 50,000 elixir to fill up the X-Bow if you fill it up the moment it is empty.

Usually after every fight I have to refill it with 10k(each). Not that much elixir

If you have to worry about the elixir you're not ready to handle the bow yet....

I never said anything about being worried about elixir, I just wanted to know how often an xbows ammo runs out.
*Edit*
And i'm level 71 not a premature level 50...

So do you think an x-bow would run out after 3 full on raids?

how does xbows work? Does it depends on the shots fired, or if it has fired at all during the raid/s? Say the loading lasts for 5 raids or something?

Calamity. It has 1500 rounds and every round cost a certain amount of elixir. I forgot how much excactly but its something like 33 per shot. So if the xbow only shoots like 10 shots its 333 elixir

Thanks! that's all I need to know.

Some calculation..

Atk spd for xbow is 0.128s per shot.
Meaning 1/0.128= 7.8125 rounds/s

Number of rounds: 1,500 rounds

1,500/7.8125= 192 seconds
192 seconds = 3.2 min = 3 min 12 seconds

Meaning an Xbow can continously shoot for 3 mins 12 seconds.

Reference: http://clashofclans.wikia.com/wiki/X-Bow

E: Correct me if i'm wrong thanks.

Usually will reload after being attacked. Dont really use alot of elixir.