What Size Cable To Run For Dual Battery

The following maximum amps versus cable size awg come from the nec version 2011.

What size cable to run for dual battery.

The century n70t deep cycle battery is rated at 100 amps. Regardless of the math we would never use 7 71mm battery cable in a dual battery system. Use 13 5mm as an absolute minimum. Calculate the right 4x4 dual battery setup with redarc s calculators that will help you work out the numbers your vehicle need.

If in doubt always opt for the larger size cable. It ensures you have power stay on task and avoid battery drain. Below we reference the two things you must double check when sizing your battery cables. Cable size ampacity chart.

But to enable this you need to make sure the sizing is correct. Copper conductor ampacity based on 75 c 167 f reference. As far as i know these values are valid as of today. I always suggest a minimum yes i did say a minimum of 6 b s 13 5mm cable for linking batteries larger is even better any further improvements to the charging time and system as a whole will be gained by increasing the size of this cable i know that the larger cable is not cheap but bigger is always best in the long run.