US Patent 9893519 Substrate providing electrical communication between power sources

A substrate is physically attached to the terminals of multiple different power sources. The substrate includes multiple electrical conductors. Each of the electrical conductors is immobilized along its length relative to the substrate. The electrical conductors include interconnect lines and sensing lines. The interconnect lines provide electrical communication between the power sources. At least one of the sensing lines carries an electrical signal indicating a voltage across one or more of the power sources. Electronics that are immobilized on the substrate employ the electrical signal to determine the voltage across the one or more power sources.