I have 3x dewalt 36v batteries and a 48 volt controller. I was thinking that if I split the connection between 5 cells in one of the batteries that would give 18 volts, which when connected to one 36v battery in series (total 54v), might be within tolerances of the 48v controller I have.
To allow charging of the modified battery with a standard dewalt charger, I will use a switch to re-establish the connection between each 5 cells.
To keep each 5 cells with similar consumption sync with each other, I would run each 1 and 1/2 batteries in parallel so current usage should be the same.
Does anybody see a failure in this logic.