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Fitech battery wire red what gauge
Fitech battery wire red what gauge





This means that the voltage at the end of the wire is lower than the voltage at the battery. Resistance in a wire causes two main things to happen as current passes through it. What Happens If The Battery Cable Size Is Too Small?Īs we mentioned earlier, thicker wires have lower resistance. However, since your RV battery cables will only be 12 volts, you do not need to worry about the voltage rating when determining which battery cable size to use. Wires have a maximum voltage rating as well. As the cable length increases, so does the required cable thickness. This is why the AWG sizing chart lists the different current capacities at various lengths. Therefore, the size cable you need depends on two things: how much current you need to carry and how long your cable runs need to be. Without getting into the math behind it, the reason for this is that a cable’s resistance increases as its diameter decreases or the length increases. Thicker wires can carry more current for longer distances. Wire Size Requirements: Determining Factors 14 AWG, which has a diameter of 1.62 mm, can only carry 15-20 amps the same distance. In the AWG system, the higher the number of the cable rating, the thinner the wire and, therefore, the less current it can carry.įor example, if you look at the chart below, you will see that 12 AWG, which has a diameter of 2.05 mm, can carry 20-25 amps up to 4 feet. The US standard for measuring wire gauges is the American Wire Gauge scale, or AWG for short. Wire gauge is the measurement of a wire’s diameter or thickness. There isn’t one correct answer to this question.īelow we will discuss how to figure out how much power your RV uses and how to use that information to select the proper cable size for your batteries.

fitech battery wire red what gauge

What size wire you need for your battery cabling depends on how much power your RV requires.

fitech battery wire red what gauge

As a result, your battery cable size will need to be rated for the highest current and ultimately the thickest. Since they come directly from the battery, they typically carry more current (measured in amps) than any other cables or wires in your RV. What Gauge Wire Size Should Be Used For Battery Cables?Ĭables coming directly from your battery are the main artery of your RV electrical system.How Do You Figure Out How Many Amps An RV Will Be Using?.What Happens If The Battery Cable Size Is Too Big?.What Happens If The Battery Cable Size Is Too Small?.Wire Size Requirements: Determining Factors.







Fitech battery wire red what gauge