charging circuit for individual batteries

[bm16ton]

Hello good sir, and first and formost thankyou for your excellant work! I switched the code over to standard gnu etc and its a lot of fun to play with. I am confused about the battery charging (have done everything so far batteries unattached). I see in the notes that each battery can be charged seperatly with seperate settings amps/volts etc. But my aegis has the 2 batteries setup in series with only a single wire making contact at the batteries connection/midpoint. I know this line is connected to adc input and can use it that way. In my head it seems like 2 more wires would be needed, one for battery A and one for battery B to be charged independently. Any chance the adc wire continously changes states/functions during charge? I guess its possible since the vape simply said aegis on the side and I received it free 2nd hand I could have confused models but it sure seems to match up. Any help on this would greatly be appreciated do to its possibly dangerous nature if I screw iit up lol. Thanks again