Date: Wed, 14 Jan 2009 09:35:46 -0800
Reply-To: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Subject: Re: Tests with eliminator/shumacher 2/8/12A charger.
In-Reply-To: <283833.7388.qm@web45310.mail.sp1.yahoo.com>
Content-Type: text/plain; charset=ISO-8859-1
Dear Charger
I gave an old (80's) Sony Video Camera Charger to a pal o mine
he put some sort of regulator shut off timer switch in and hooked it up to
trickle charge his motor home --
been in service now for several years now ...
you might find one on ebay or in the closet at home --
this unit was the sort used by tv studios for power when camera and recorder
were separate
panasonic makes a version so did sony
give it some thought ...
if you want more info pmail me and i can dig up the model #
yours
On Tue, Jan 13, 2009 at 10:25 PM, Poppie Jagersand <
poppie.jagersand@yahoo.ca> wrote:
> I've been looking for an inexpensive, yet efficient
> coach battery charger and shore power supply for my '82
> Westy. The '94 has a built in constant voltage (13.8V)
> unit. However, that is not the ideal charge cycle, and
> buying one also for my '82 would cost a ridiculous $400.
>
> So I tried to use my $49 Canadian tire eliminator 2/8/12A
> charger instead. A peek inside reveals it is a re-branded
> shumacher unit. (says shumacher on pcb). The fan was annoyingly
> noisy, but that can be solved by replacing it with a computer
> chipset fan. This is a switched supply, but unlike most its
> switching frequency is in the audible range, so it also has a
> bit of high pitched noise. Not too bad though.
>
> So on to tests:
>
> 1. I already knows it charges batteries well with it's 4 cycle
> program. In fact much better than the alternator, so I use it
> occasionally to revive the battery capacity.
>
> 2. Now connected it to the westy coach battery, connected a
> 100W load. This also worked fine. Charge current settled at 8A,
> which is about what the load was using. Hence power supplied
> by charger and not battery when connected to shore power.
>
> 3. Connected charger, charged battery, then connected load.
> Here is where it failed to do the best thing. Normally after
> charging it goes into a desulfatation mode, giving short pulses
> of 15-16V. this is good to condition the battery.
>
> However, after connecting load, the battery voltage would
> drop to about 12V, but the charger wouldn't switch back into
> bulk charge mode by itself. I had to power cycle the charger
> to get it into charging mode again.
> This is a bit annoying. Anyone knows if other "automatic"
> chargers behave the same?
>
> In particular I saw this very inexpensive one, which should
> be good for my AGM:
> http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=4506
> (10A<http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=4506%2810A>smartcharger for only $32)
> Anyone have experience with this model?
>
> Anyone knows other sources for chargers or 14V constant voltage
> supplies useful for campsite powering?
>
> Thanks,
> Martin
>
>
>
> __________________________________________________________________
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--
roger w
There are two kinds of jobs in the world:
Picking up garbage and telling people things.
Successful people do both, with the same good attitude. (riw)
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