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,
Source Item Hot Selling Online Hifi Speaker Cable 4x2.5mm2 No.13 Awg Gauge Audio Wire For Student Union Party Music 4 Core 2.5mm2 on m.alibaba.com
Awg To MM2 | PDF
Awg to Square mm Conversion - Siechem
6/4 Shore Power Cable by the Foot | West Marine
4 gauge battery cable- Full AWG SIZE
Number 4 AWG Type Thhn 8.0 mm2 Wire Price Gauge T90 Nylon Per Toot Twn75 Building and Thwn in Conduit Cable - China Cable Wire, Nmd90 | Made-in-China.com
120' EXCELENE 4 AWG GAUGE WELDING CABLE 60' BLACK 60' RED USA MADE BATTERY LEADS | eBay
Gemsa ID - AWG ( American Wire Gauge) to mm2 ( Milllimeters squared) Conversion
4 gauge, 2 gauge, 8 gauge, 0 gauge...What's right size power and ground wire for your amp? - Car Stereo Reviews & News + Tuning, Wiring, How to Guide's
Silica Gel Battery Pack Cable | Silicone Battery Pack Cable | Silicone Test Line Cable - Electrical Wires - Aliexpress
Wire Gauge Wattage Charts For AWG Wires (4/0 AWG To 14 AWG)
Denkabel - Tabla de equivalencia entre AWG - MM2, para... | Facebook
lithium & solar power LiFePO4 — American Wire Gauge (AWG) – Sizes and Currents –...
Metric-to-AWG Conversion Chart - LAPP Australia
AWG - American Wire Gauge Converting Chart
15 Awg 1.5mm2 Rvv 2/3/4/5/6/7/8/10/12/14/16/18 Cores Pins Copper Wire Conductor Electric Rvv Cable Black - Electrical Wires - AliExpress