Battery eliminator for Yaesu FT3D has been arrived from China. The price is $8.39 including shipping fee. This device can supply power from external power source instead of a battery.
The thickness is the same as SBR-14LI battery. I wonder that this device is made by taking out battery cells of SBR-14LI.
When the power (DC 12V) is supplied from the cigar plug, the voltage is about DC 8V. It may have step-down circuit.