6 mths after replacing battery, phone turns off @ 50-60% batt.
I purchased a replacement 3GS battery from iFixit last fall and installed it during the winter. The phone itself is ~2.5 years old.
The battery life has seemed to degrade considerably faster than the original OEM battery. I try to maintain battery health with a discharge to ~15% and then fully recharge it at least once per month.
Over the past few days, the phone has consistently turned itself off during normal use while still reading as having greater than 50% battery life remaining.
Has anyone else seen similar issues with replacement batteries? If so, should I seek another replacement?