Amazon.com: TerraBloom 14/3 Heavy Duty Extension Cord 15 FT Outdoor - Black Outdoor Extension Cord Multiple Outlet - Ultra-Flexible SJEOW Rubber, Light Indicator, Triple Outlet for Maximum Efficiency - 15 Amp : Tools & Home Improvement
I bought a roll of 13-14 AWG wire (2.5mm2). According to this chart, I would be safe running a wire from my battery (which is next to my firewall), through the firewall,
How many amps can a 14-gauge wire safely carry? - Quora