All: After hearing that the internal battery was "soldered in" and a special piece, I sent my mid-90s GX65 back for battery replacement several times over the years. This time round, I dared to peek inside, and found 3 volts and a spring receptacle. So, I bought 2 CR123A batteries; soldered wires on one; taped the leads to the terminals (to avoid loss of power to the radio and maybe some sort of lock out mechanism); yanked out the old Matsu****a 3 volt battery and plugged in a new Sanyo. Voila! Saved couple/300 hundred bucks. More money for gas for the old bird. Best, J