I would not try such things but I wonder if it's just old stock and the battery was bad in this unit. I don't read a lot of out of the norm failures on the web so good to hear they put in a new battery.
I have a LGK20 that i got new about 4 months ago and yesterday i had to replace my battery! It would not hold a charge, get really hot and die easily. So i bought a new battery and it seems to have fixed the problem ...but i worry about overheating and wanted to know are the phone cooler apps effective at all? What can i do to protect my newly installed battery? I dont want a repeat of my battery dying in 4 mo again!