What is happening to my phone battery?

[AC Question]

So here is the story... I dropped my phone in the toilet (galaxy s6) at school (nasty right?) This is the 3rd time it has fell into water. The first two time my phone made a full recovery. This time it did something different... When i got home i put it in rice for a bit. After i turned it on. The buttons worked and everything. I plugged it in and a blue screen came up saying "download Do not turn off target" I did some research and found out that if you press the power, volume down, and home buttons at once it should go away. It did. (one question though.. mine only did that when it was plugged in... online others said it did that while it was not) After that i turned it on and it worked. I charged it for a while but it kept stop charging too. After a while sometimes when i plugged it in it would restart and other times it would charge and stop charging... right now it charged and stopped charging it was at 56% then it restarted and said it was at 93% then it should a battery with a lightning bolt and when the green battery showed back up it was at 73% THEN AGAIN it did the lightning bolt and it went back up to 94%..... Why does it keep doing this? What is my real percentage? WHAT IS GOING ON? Before you say anything... yes i am a stupid teenager... i was not sneaking my phone in the bathroom, school was over and i had just finished when it fell from a counter. Please i really need my phone. I have a job and i need it for it. I can't get a new phone or an upgrade until i move back to America in 2020 (military)

 

[B. Diddy]

Welcome to Android Central! I didn't have to go too far into your post to tell you that this has to do with water damage. Exposure to water can be unpredictable, but it's usually progressive, since residual moisture can lead to eventual corrosion. Your main option is probably to get a new phone, since sending it in for repair might end up costing more. Sorry!