[Lowfer] MFJ-4035MV power supply as "float battery charger"

Thu, 21 Mar 2002 18:33:16 -0600

Hi Les,

I don't use any reverse pol. protection.
It doesn't seem to be needed.
I use a system that charges initially with 14.5 volts and
floats at 13.6 volts. The biggest problem is keeping water
in the battery. If reverse pol is really needed, you could just
use a diode.

73,  Jim.

----- Original Message -----
From: Les Rayburn <[email protected]>
To: <[email protected]>
Sent: Thursday, March 21, 2002 9:46 AM
Subject: [Lowfer] MFJ-4035MV power supply as "float battery charger"

>
> Currently I use a series of 12V deep cycle marine batteries to provide
> emergency power
> to my Icom 746 or whenever I need to reduce all noise to the minimum for
> weak signal work. I'd like to modify the system to always supply power
using my
> MFJ-4035MV power supply as the "float charger" to keep the batteries
> charged, and when ac fails, I'd have instant change over to DC.
>
> I know that it's necessary to protect the power supply from reverse
voltage by
> inserting diodes, and have found plans to modify Astron supplies for this
> type of work, but nothing specific on the MFJ supply. Just wondering if
anyone
> knows what kind of protection will be needed?
>
>
>
> Les Rayburn, director
> High Noon Films
> 100 Centerview Drive
> Suite 111
> Birmingham, AL 35216
> (205) 824-8930
> (205) 824-8960 FAX
> (205) 253-4867 CELL
>
>
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