I HAVE A NEW MOD.
I HAVE MADE MY CONTROLLER TO BE ABLE TO CHARGE BOTH MY SINGLE BATTERY BIT CHAR-G AND MY DUAL BATTERY BIT CHAR-G.
I will not post any details just yet.
It is working just fine as of this moment.
I have diagrams and pictures ready but you will have to wait until I am ready to post them.
This mod is 100% perfect as of this moment.