So I'll answer my own question now, the answer is NO. I almost thought so, but it wasn't the deciding factor. It also says so in the instructions. After the discharge process (discharging + charging), only the value of the charged mAh is displayed at the end, the value of the discharged mAh is no longer displayed. Maybe someone knows a trick to get this value? But if I just press the display button, I get a mAh value that is probably the charged mAh. Good old days of the Charge Manager 2010, which I unfortunately can't find any more ... it simply displayed both, but unfortunately it died.

No. The BC 700 can only charge NiCd and NiMH batteries in sizes AA and AAA. Take a look at the ISDT C4. It should be able to do that ISDT C4 Smart AC Charger

only for 1.2v batteries

No. But the power supply unit is pluggable.