I have 2 - 12 volt Dakota Lithium 100 AH batteries wired in series for the 24v trolling motor and each battery has 2 additional loads for the 12 volt loads on the boat. Each battery has it's own Dakota 10 amp charger wired to each battery. Where or how should one wire the Victron 712 into the system? I'm not opposed to just monitoring one battery and "assuming" the other one is close or would I need two 712's to actually monitor each battery. Thanks IA.