When talking about battery management systems of any kind, battery cables are among the most important components. It does not matter if we´re talking about automotive or marine battery cables , they must ensure you always have stable power and prevent battery drain. This not only means that they have to be properly secured and protected. Size and gauge play a vital role when choosing the right battery cable for your system. Here are three things you must always bear in mind when selecting and installing your battery cables. Proper Gauge Understanding cable gauges can be a problem for many as gauge measurements can be very counterintuitive. During the early days of the cable industry, cables were made out from a strand of iron that needed to be thinned out by passing them through increasingly narrower drawing dice until they were the right diameter. A 0 gauge cable meant that it didn't need to be reduced or gauged, while a 30 gauge cable went through 30 drawing dice until it ...