Took some measurements This is with the BAT54C diodes.
While not installed in 100: BATT 2.99v RAM_RST 2.91v 7uA SRAM VCC 2.76v While installed in 100, power on, wall power, original tandy 6v adapter: RAM_RST 4.85v BATT, installed 3.0v BATT, not installed 3.65v 0.5uA bkw