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Do backup batteries charge?

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=15695
Printed Date: July 13, 2025 at 11:17 PM


Topic: Do backup batteries charge?

Posted By: phamine
Subject: Do backup batteries charge?
Date Posted: June 30, 2003 at 11:35 PM

Just installed the BUB. Notice my siren sounding real faint when I disconnected the battery. Do these batteries recharge directly from the battery?



Replies:

Posted By: mr12volt
Date Posted: July 02, 2003 at 8:56 PM
they should charge from the alternator just as your main battery does


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