Date: Sat, 3 Mar 2007 17:57:30 +0000
Reply-To: dhaynes@OPTONLINE.NET
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <dhaynes@OPTONLINE.NET>
Subject: Re: 12-volt LCD monitors for DVD?
In-Reply-To: <45E9A623.1010402@gmail.com>
Content-Type: text/plain; charset=us-ascii
Don't forget, you will still need to power up the DVD player to watch the DVD on the monitor.
So an Optima will have trouble playing one movie.
Dennis
----- Original Message -----
From: Michael Elliott
Date: Saturday, March 3, 2007 11:45 am
Subject: Re: 12-volt LCD monitors for DVD?
To: dhaynes@optonline.net
Cc: vanagon@GERRY.VANAGON.COM
> Thanks, Dennis. I use my laptop for photography and treat it
> gingerly
> after having had it break twice while in the field. It stays
> stowed
> unless I need it. Our Philips standalone portable DVD player is
> less
> dear, so if it breaks it won't break my heart at the same time.
> Plus,
> we're looking for a standalone monitor we can place above the
> poptop
> latch when the top is up.
>
> I also noticed that my laptop draws about 50% more current from
> the
> battery than the DVD player. I have no idea what 12-v LCDs
> wants,
> powerwise . . . hmm, let's look at the sticker on my home
> ViewSonic
> VP720b monitor: 1.2A @ 120VAC. That's 1.2 X 120V = 144 watts.
>
> Using the handy-dandy online Battery Demand Calculator at
> http://www.altavistaaudio.com/Westy/Vanagon/battcalc.html we
> find that
> with an 80% efficient inverter, a 2-hour movie will require 32
> Ampere-hours from a battery. If inverter inefficiency is removed
> from
> the setup by finding a 12V monitor with similar power
> requirements, the
> 24Ah would be needed for the same film.
>
> I reckon we'd pull out the big monitor only if we could be
> assured of
> adequate charging the next day.
>
> --
> Mike "Rocket J Squirrel" Elliott
> 71 Type 2: the Wonderbus
> 84 Westfalia: Mellow Yellow ("The Electrical Banana")
> 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
> KG6RCR
>
>
>
> dhaynes@optonline.net typed:
> > I find the best option to be a large screen laptop. Does a
> whole bunch
> > of stuff in one package including the the DVD player. Robust
> and
> > compact. Sitting on the top of the stove cabinet makes great
> viewing
> > from the rear seat or chairs outside the sliding door. If
> getting a new
> > one, look for one with the tuner card built in. Works better
> than the
> > USB add ons. Some of the new laptops are very efficient. My
> son's HP
> > Laptop will go 6 hours on its own battery. My older Toshiba
> doesn't go 2.
> >
> > Dennis
> >
> > ----- Original Message -----
> > From: Michael Elliott
> > Date: Saturday, March 3, 2007 10:59 am
> > Subject: 12-volt LCD monitors for DVD?
> > To: vanagon@GERRY.VANAGON.COM
> >
> > > Mrs Squirrel and I often enjoy the watching of a film while
> > > camping. Her
> > > tastes are in the rom-com vein, while I can be tempted by an
> > > indy film.
> > > Somehow we manage to find something to rent that we both
> like. Our
> > > little portable DVD player has a similarly little screen
> and we were
> > > wondering if there are standalone 12-volt LCD monitors -- not
> > > televisions -- in 16:9 17'' or so size.
> > >
> > >
> > > --
> > > Mike "Rocket J Squirrel" Elliott
> > > 71 Type 2: the Wonderbus
> > > 84 Westfalia: Mellow Yellow ("The Electrical Banana")
> > > 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
> > > KG6RCR
> > >
>
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