I just purchased the battery mentioned above from Amazon. I bought it off a direct link in this forum, though since I am new and cannot post it. Anyway, I have fully charged both with the included charger and when I insert either one into the phone I get the greyed out exclamation point for the battery monitor. The phone does not recognize the battery, but everything else seems to function fine. Has anyone else had this problem or know of a fix? My phone is not rooted. Thanks.