Reboot the phone into clockworkmod recovery after charging the phone to 100%. Go to advanced and then battery stats wipe, select yes, and then restart. After that run the battery till the phone shuts itself off. If you choose to do so you can pull the battery and reinstall it. Mine generally has about 5% left after I pull it and reinstall it. There may be some risk to this if the battery is ran too low to the point it will not charge anymore, just fair warning. Then charge it back to 100%.