Date:         Tue, 6 Aug 2013 18:38:20 -0700
Reply-To:     Rocket J Squirrel <camping.elliott@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Rocket J Squirrel <camping.elliott@GMAIL.COM>
Subject:      Re: Battery Charger Sizing (Amperage) Woe and Warning (?)
Comments: To: Steve Williams <sbw@sbw.org>
In-Reply-To:  <201308070112.r771C2o65748@sbw.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 08/06/2013 06:11 PM, Steve Williams wrote:
> At 03:39 PM 8/6/2013, Rocket J Squirrel wrote:
>> I don't think anyone here can be sure about the reefer wants for power,
>> but it likely wants a constant voltage (12v), not a constant current.
>
> I doubt the fridge cares what the voltage is, as long as it's between
> about 10.5 and 14.6 volts.  After all, it's designed to work until the
> battery is depleted, and while the alternator is charging.

Well yeah, but a constant-current supply could modulate the voltage over
a far wider range than that to provide the desired current. This is not
an appropriate kind of power supply for a device that is designed to
work with a certain voltage in mind. I guess I should have qualified my
statement by saying that it wants a voltage in the range normally found
in a vehicle.

But it looks like I was responding to an earlier post from Neil when he
was looking to get something to power the reefer. So never mind.

--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.