This application relates to batteries that are capable of routing signals that are separate from the charge supplied by the batteries. In some embodiments, a battery can incorporate a conductive trace that extends through a portion of the battery to allow for signals to be routed through the battery, as opposed to around the battery. The conductive trace can be a single wire, multiple wires, a coaxial trace, optical cable, or any other mechanism for allowing a signal to be transmitted between one or more components. By providing the conductive trace within the battery, shorter pathways to components can be created thereby reducing signal or power loss over the pathways.