Why is my battery always low on my new iPhone 7?

Ok so I've had my iPhone 7 for like 4-5 months and by accident about 2-3 times my brother for water in it. I know there was water beucase when I played music and sounded weird. It eventually stopped so I wasn't worried anymore but then I noticed that my battery went down so fast. When I first got it it was perfectly fine. Anyways to prevent my battery from going down?

And you're asking in the Cars & Transportation Maintenance and Repairs forum because you're… What's the word? Oh yeah, a dumbass.

I'm sure that the water damage has something to do with that. If you are lucky, replacing the battery should fix it. If not, then it's probably going to be pretty expensive to fix.

Turn off bluetooth, gps and Wi-Fi and see if the battery holds up any better. Whatever you meant about the water is not clear at all, but drowning a phone can fail it by shorting it out inside. IPhones aren't seviceable by the user, so go to the apple store and don't tell them your phone went swimming, but tell everything else about it acting up.

  • Why is my iPhone battery draining so low? So I bought an iPhone 4 two weeks ago and for a week the battery was GREAT. But now everytime I use it for something the battery drains super fast. Only when it's on standby is it still good, any tips?
  • Why does my pokemon emerald rom's internal battery always die? I have a pokemon emerald rom for my iPhone 4s emulator (gba4ios) and within the first hour of gameplay I get a message saying that the internal battery has died but the game is still playable. How can I alleviate this problem?
  • Why does my iPhone 5 battery life so low? I recently replaced my iPhone 4S with the 5. Actually the day iOS 7 was released was the day I got my new phone. Anyway, my 4S used to go all day and night without needing a charge, but my iPhone 5 needs to be charged every 3 or 4 hours. Is there something wrong with it or am I simply doomed to have a continuously dying phone for the next 2 years?
  • Why does Apple always lie about iPhone battery life? They say it last certain amount time listening to music or using internet even with all battery settings savings there no way you can use Internet for 9 hours. It dies after like 4 hours.