[Q] [HELP]Samsung Galaxy Pocket Won't turn on/boot topic

Good Day XDA! My Galaxy pocket wont turn on.Last 4 days I dropped my phone on our pail full of water on our garden. I didnt noticed it.I keep searching for it in our house but no hope. Last 2 days I found it and tried the rice technique to make it dry again. Today It wont turn on and I cant charge it. I borrowed the battery of my friend's SGP and thankfully my SGP turned on. But I tried my SGP battery on my friend's phone but my friends phone wont boot.Please Help Me!

My Smartphone: Samsung Galaxy Pocket (GT-S5300)
-Stock Firmware
-Rooted
-with CWM recovery

the problem is on the battery any help?will i need to replace the battery?