Date:         Sat, 6 Dec 2003 14:10:14 -0700
Reply-To:     Gnarlodious <gnarlodious@EARTHLINK.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Gnarlodious <gnarlodious@EARTHLINK.NET>
Subject:      Re: PC power supply battery charger
Comments: To: David and Shirin <daveshirin@ENERGYUNITED.NET>
In-Reply-To:  <004701c3bc37$d1beee40$2a2bf9d0@david1>
Content-type: text/plain; charset="US-ASCII"

Entity David and Shirin spoke thus:

> http://www.webx.dk/oz2cpu/radios/psu-pc1.htm
Hey, great! I'll have to read it closely.

Others are saying it won't work. As Felder pointed out there is a way to
adjust a rheostat in there to bump the voltage up. Mine runs at 13.8, which
is ideal. If you can't squeeze any more voltage out of the existing
adjustment then you need to modify the regulator circuit with a resistor.

And another thing. The PS is not a charger. To make it into a charger it
needs a current blocking diode to prevent the battery from discharging when
the charger is unplugged. In a pinch you can still use it but remembering to
disconnect when you unplug. You could also do this with a relay. The diode
solution absorbs about .2 volts so that drop needs to be figured into the
rheostat mentioned above.

--Gnarlie