[Q] Corrosion leading to battery drain?

I recently got some, but not much water on my phone (stupid flowers) which lead to a non workin volume down button. As this doesn´t really bothers me i simply kept going without changing the volume rocker part. The problem now is that the phone drains various batteries a bit too fast: stock battery lasts about 10 hours without any usage and extended about 2 hours more. So i checked the phones inside and found some corrosion on the 1. of the 4 volume button soldered pins (but only there), so could that be the reason for the battery drain? (Will post picture later) Is it possible to relate the battery loss to some hardware part via software or even shut down energy supplie?

Edit pix:

No wakelock :/


Energy loss even when phone is shut down:


Full battery cycle (during night):





Loading Battery:




Here is some picture of the soldered volume rocker pins where you can see some strange fluid around the first pin:

Omaxe said:

I really don't understand...


But if water wend inside phone that can cause battery drain cos of some resns

Click to expand...

Click to collapse

Yeah, thats what i know so far aswell, so i hope you guys can help me to nail down the problem, so it can be fixed.

Edit: pictures

Edit: pictures

Guess i got all Information together now. Some clever Ideas would be much appreciated (especially for hunting down the failing part)