ok so i left my itouch in my backpack and i had some beer and ice in there. the ice bag broke and i didnt notice it but it soaked my ipod and it sat wet for a night. the next day i took it out, put it in a bag of rice for a day, then let it sit in the sun for a bit. when i connected it to the charger it did charge and i did see the battery indicator but when i took it off it was stuck in recovery mode. so i restored it in itunes, at first i got an error but then it worked. my itouch seemed to be working perfect except for when i got back home the ipod was dead after being in standby for a few hours. im guessing the battery got damaged. now whats the best way i go about replacing the battery for the cheapest? also if the ipod seems to be working ok besides the battery life, is anything else likely to fail?