DATAMATH PICTURES

This BA-20 Profit Manager Calculator was manufactured in June 1986 by Inventec Corporation in Taiwan (Date code I-0686 » mth 06 yr 1986).
The BA-20 is powered by 4 solar cells with a LR54 (LR1130) backup battery and the clock module by a small LR41 battery.
The printed circuit board (PCB) of the BA-20 is centered around a Sharp LI3163 single-chip calculator circuit.
Close-up view of the clock module.
Close-up view of the Sharp LI3163 single-chip calculator circuit.	Close-up view of the PCB-Mark of a BA-20.