All I know about this is that having a charger across a big battery has
never put hum on my signal running just a transceiver.
Wal-Mart's SAM's club here used to sell a fine marine battery. It was all
sealed up so it could be used in any position. The problem with marine
batteries is that they are easily damaged by overcharging! If you get one,
be sure to get a charger designed for the deep cycle batteries and not a
charger designed for automobile batteries. Most deep cycle battery chargers
have a timer on them. You can tell the state of the battery's charge by
measuring its no-load voltage.
12.0 volts is discharged.
12.2 volts is 1/4 charged
12.4 volts is 1/2 charged
12.6 volts is 3/4 charged
12.8 volts is fully charged
After you charge the battery, you must let it rest for at least a half hour
before you measure its voltage.
Luck and 73 de Mike N4NT@wireco.net
----- Original Message -----
From: "Jim Reid" <kh7m@hsa-kauai.net>
To: <tentec@contesting.com>
Sent: Saturday, December 25, 1999 6:27 PM
Subject: [TenTec] Hercules II Power Source
>
> Hi,
>
> Ten Tec advises of an alternative to the expensive
> 100 amp supply for the Herc. amp: "Heavy duty,
> deep cycle lead-acid battery and an automatic
> 10 amp charger".
>
> What should the battery rating be; what would
> I shop for? Are they talking about one of those
> larger batteries used on boats and big trucks?
> I looked in Sears; they offer but one type of
> "deep cycle" battery, did not appear to be a
> "heavy duty" unit, at least what was in the store
> in Lihue and no one there seemed to know much
> about it, hi. Probably should check at the Daleco
> battery shop here on the island.
>
> Is the automatic charger to remain "on" and connected
> constantly across the battery terminals, even while
> the amp is in operation; or are you only on "battery"
> during operation with the battery charger "off" and/or
> disconnected? Can the auto charger introduce hum
> onto the power to the amp, and thus to the output
> signal, if it were left connected and "on".
>
> What happens if you parallel, say, a 50 amp Astron
> (RS-70M, rated 57 amps continuous, 70 amp ICS)
> power supply to this set up? Astron, of course shut
> "off" when the amp is to be "off", but the charger operating
> "automatically" across the deep cycle battery.
>
> Lots of questions.
>
> Thanks, have a great Holiday Season,
> 73, Jim, KH7M
>
>
>
> --
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>
>
--
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