Remote installation
Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=141646
Printed Date: April 28, 2024 at 5:14 PM
Topic: Remote installation
Posted By: sgosgo
Subject: Remote installation
Date Posted: August 27, 2016 at 3:38 AM
Id like to install an Alpine unit in a garage run by a 12volt power supply.
Can an small external battery (9v) be wired to save the memory and pre-sets when the power supply and unit are turned off? How would it be wired?
Any suggestions appreciated.
Replies:
Posted By: lurch228
Date Posted: August 27, 2016 at 4:37 AM
9v for short term yes for days it won't last long. Get a Cheap small 12v battery like a UB1250 and use the power supply to charge the battery and run the radio, then when the supply is off you have the capacity to go long term and no relays to wire. Use 1 diode between the supply (+) and the battery (+) and hook radio power lead to power supply and memory wire to battery. When you shut off the supply the radio will turn off and the memory will be fed by the battery.
Posted By: sgosgo
Date Posted: August 28, 2016 at 4:48 AM
Thanks for the suggestion, I'll give it a go.
Cheers.
Posted By: lurch228
Date Posted: August 28, 2016 at 4:49 AM
Your welcome.
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