My phone has this wierd problem, whenever i plug in the charger it goes to 100% within a minute or so, then after i unplug it it goes down to about 99% and turns off.
If i boot it up without the charger the battery shows to be between 4% and 50% and goes dead within minutes.
It does this in Safestrap, Stock ICS ROM, Eclipse ICS ROM and AOKP GB ROM. So i've pretty much ruled out software issues.
I've had the phone opened up a few times, once a couple of months ago, to do a manual charge on the postive and negative battery heads on the battery. (Because i bricked it with low power).
Recently i've noticed a bump on the battery, as if it has swollen. Just around the area where the positive and negative headers are on the battery.
Maybe the phone powers off by touching it, i can't be sure.
I have the EB40 battery and have been looking for a replacement, but none are to be found in Denmark.
I need an adult! Or atleast some ideas, i'm lost without my phone!