Wire   Size   Calculator
Step 1   Enter the output voltage of your Solar Panels.
Step 2   Enter the maximum amperage your panels will output.
Step 3   Enter the Distance in feet from Batteries to Solar Panels.
Step 4   Enter percentage of acceptable loss.   ( 3% - 5% typical )

DISCLAIMER : Alway make sure that all of your equipment is properly fused and grounded for safety. Also, be sure to read and follow the advice and instructions that come with your equipment. Additionally, our Design Tools, while reasonably accurate, are not meant as a substitute for the recommendations of a licensed electrician. We provide these Design Tools as a guide only and to assist in the explanation of the information presented. We do not warrant their accuracy where equipment is improperly installed or operated under extreme or unusual conditions.