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[aprssig] backup pwr systems

Joe Della Barba joe at dellabarba.com
Sat Dec 9 15:58:01 UTC 2006


You need a battery charger designed for this service. Most any marine 
hard-wired battery charger is designed to run all the time. Look for a 
"3 step" or "smart charger".
73
Joe N3HGB

Chris Rose wrote:
> Leaving a battery constantly plugged in to a charger will cook and kill the battery.  I have ruined more than one.  I don't suggest that course of action.  Having a battery available to connect to when mains go down is a better way to go.  Some circuits are available to show how to do this.  Some simple and some quite elaborate depending on how many raidos or scanners you have to take care of.
>
> Chris 
> KB8UIH
>
>
> ----- Original Message ----
> From: Ben Lindner <vk5jfk at activ8.net.au>
> To: TAPR APRS Mailing List <aprssig at lists.tapr.org>
> Sent: Sunday, December 3, 2006 5:45:53 PM
> Subject: [aprssig] backup pwr systems
>
>
> Hi all,
>
> What sort of backup power systems do people use these days.  ?
>
> eg.
>
> Running a rig from a standard PSU while charging a battery at the same 
> time and when the mains power drops out the battery will take over and 
> run the radio. Then when the mains power is returned every thing is back 
> to normal, battery is charged again from PSU and radio runs from PSU.
>
> Any body have any ideas on how to work this or has a circuit that I can 
> build
>
> Ben Lindner
> VK5JFK
>
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