Thanks, Richard.

I like this idea!

Best 73 from Tom Behler: KB8TYJ

----- Original Message -----
From: <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, February 07, 2005 7:03 AM
Subject: Re: smart charger for deep cycle marine batteries


> IF I recall correctly sometime back in the late eighties there was an
> article in the hints and kinks section of QST regarding float charging
> deep cycle batteries with a power supply and building circuitry to
> monitor said system.  Any circuit which you could build for this
> purpose could be modded for audio output.
>
> ONe thing we use with large capacity gel cells is a float charge
> circuit using a garden variety 12 vdc supply.  PUt an automotive lamp
> in one lead going from the supply to the battery.  wHen the battery is
> drawing from the power supply the light bulb will light. same could be
> done with a buzzer, but I'd think for float charging for emergency
> backup power you'd be able to tell when the system was drawing from
> the ps instead of the battery by just feeling the lamp.  IF it is a
> bit warm you know you've been drawing from the supply recently.
>
> 73 de nf5b
>
>
>
> Richard Webb
>
> Electric Spider Productions
>                                             "They that can give up
essential liberty to obtain a little temporary
> safety deserve neither liberty nor safety."
>
> --- Benjamin Franklin, NOvember 1755 from the
> Historical review of Pennsylvania
>
>
> braille:  support true literacy for the blind!
>