When you year the term battery cable wire , you’re probably working with battery cable, since wire is a single conductor and cable is made up of many small conductors braided together. Most so called battery wire is actually battery cable for one (or more) of the reasons that will be covered below. If you’re looking for battery cable (wire), it probably means you have a problem with your battery or electrical connections. This could be a problem with the wire but it could also be a problem with the battery or the connection. Test the battery’s health using a multimeter and if the reading indicates low voltage, you may want to try charging the battery. If the battery will not hold a charge, it may be time to replace the battery itself. That is to say, your wire or cable may not be the culprit. In that case, check the battery terminals and the connections. Corrosion may also cause issues with power; if there is corrosion on the terminals, you may want to try cleaning it with a termina