Backup Battery
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=2600
Printed Date: July 14, 2025 at 6:42 PM
Topic: Backup Battery
Posted By: Mr_Fusion
Subject: Backup Battery
Date Posted: August 07, 2002 at 6:52 PM
What is a good way to hook up a backup battery so that it ONLY supplies the alarm with energy and NOT the rest of the car? I am looking to install a 12v 1.3 amp battery
Replies:
Posted By: cpgoose
Date Posted: August 07, 2002 at 7:51 PM
Can't you just run the power wire of the backup battery
straight to the alarm module? So, if someone cuts
the main battery, the backup battery will know and
take over? Maybe I'm not familiar enough with them.
Posted By: hot_shot_guy123
Date Posted: August 07, 2002 at 9:43 PM
You can run the pos. wire from your B+ side of your alternator to the pos. terminal on your back-up batt. then ground the batt. to the chassis. Find your alarm power wire and run that to your back-up battery. If you do this set-up make sure you fuse at the alternator and at the batt
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"Light travels faster then sound, that's why some people seem bright until you hear them speak."
hot_shot_guy123
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