I have read so many variables to this, but I wanted to ask my version, get it out of the way with a solid answer from an expert...
I wired my Mega live transducer and Mega 360 transducer to a dedicated 12V 40 AH lithium battery in the front of my boat (inline fuse for each and a power cut off switch)... I don't need to install the choke cable at all, correct?
My Graphs run to my cranking battery that is hooked up to a power pole charge system, but the 2 transducers are not in that power supply system.