min wire size for battery +12v supply
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=132941
Printed Date: May 20, 2024 at 7:27 AM
Topic: min wire size for battery +12v supply
Posted By: specs
Subject: min wire size for battery +12v supply
Date Posted: December 10, 2012 at 8:33 PM
If I'm running a wire directly from the battery for the +12 volt supply to a remote start/bypass install, is there a rule of thumb about what guage wire to use? Supplying two feeds to the r/s unit and a single to the bypass.....r/s 12V inputs are fused at 30A, should I be using a further fuse inline from the battery and, if so, what rating? Thanks, Al
Replies:
Posted By: auto enhancers
Date Posted: December 10, 2012 at 10:30 PM
Year make model of vehicle. How long if a wire run?
Posted By: howie ll
Date Posted: December 11, 2012 at 12:12 AM
Vehicle dependant? I almost NEVER go to the battery.
Most don't have enough wire length.
On most cars the ignition switch and or fuse box supply leads are sufficient.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: specs
Date Posted: December 11, 2012 at 8:35 AM
Sorry guys....vehicle is a 2004 Chevy Colorado, just thought it was better to run a direct power supply instead of multiple connections at the ignition switch or fusebox...thx, Al
Posted By: soundnsecurity
Date Posted: December 11, 2012 at 9:34 AM
im not sure if the wires at your ignition harness are thick wires or thin wires, but if they are thick then you dont need to run any wire to the battery. if they are thin wires at the ignition harness then you need to go to the battery but you shouldnt need anything thicker than 14 gauge or 12 gauge if the wire is low quality.
definitely add a fuse on that wire close to the battery.
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Posted By: specs
Date Posted: December 11, 2012 at 12:51 PM
Thks sound, much appreciated! Al
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