Date:         Mon, 23 Jun 2003 09:23:50 -0700
Reply-To:     TJ Hannink <tjhannink@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         TJ Hannink <tjhannink@YAHOO.COM>
Subject:      Re: replacement fridge?
Comments: To: vw4x4@FYI.NET
In-Reply-To:  <3EF71C87.40701@fyi.net>
Content-Type: text/plain; charset=us-ascii

--- Eric Zeno <vw4x4@FYI.NET> wrote:
> I have a fridge that is very small and runs on
> 110VAC at 1 amp. Max. This means a very small 12v
> DC, power inverter, of 300 watt, would work fine.

If the inverter was 100% efficient, it would use 9
amps at 12 VDC in order to supply 1 Amp at 110VAC.
That completely drain a 72 Amp/hour battery (like an
Optima Yellowtop) in 8 hours. In real world terms, the
battery would be 90% discharged after about 5-6 hours.
A regular starter battery would handle this type of
service for about 8-10 cycles. After that, it would
take around an hour to get to the 90% discharge point.

The Dometic fridge will use about 8 amps/hour on 12 volts.

=====
TJ Hannink
Goldibox - 1987 Vanagon Camper, Wolfsburg Edition
Winter Park, Florida
http://home.earthlink.net/~tjhannink/
http://groups.yahoo.com/group/wolfsburg_campers
http://photos.yahoo.com/tjhannink [Vanagon] Album

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