My Samsung Convoy 3 has this same "Battery Disconnected" problem - but with new batteries (tried 2). The "old" battery works fine for charging, but it's not holding the charge for as long as it used to (and having a couple charged batteries is handy).
The phone will show charging using a Novatel wireless mini-usb cable NOV6620USB cable (DC140916) and charge the existing battery to "full". The new batteries however, drop out of phone service when any charging cable is plugged in - only difference is the battery - one for sure, possibly both, are brand new/never used.
Details:
VZW: SAMU680BAT DC151025 AB663450BZ 1300mAh - Charges fine
VZW: SAMU680BAT DC150408 AB663450BZ 1300mAh - "Battery Disconnected"
VZW: SAMU680BAT DC130424 AB663450BZ 1300mAh - "Battery Disconnected"
Cleaned contacts on the last two listed , tried "wedge-seating" and wiggling the batteries in the well, no joy. All batteries power the phone fine without charger cable plugged in.
Anyone got a clue what the issue is?
