Only a few UPS's use 12 volts. Many use 36 or 48 volts. Then you get into
the 3KVA units that have 96 volt bank of batteries. The real nice 10+KVA
boxes have 180 to 300V battery banks. Some day I will get a new battery
bank for my 10 KVA box for the office. In the meantime I make do with a few
1 to 3 KVA boxes.
Also some of the 12v UPS's will not start from just battery. They have to
"fail over to battery" I do have a 1KVA Triplite that is 12V and does start
from just battery. So keep your eyes open for those.
Dan
-----Original Message-----
From: Chuck McManis <cmcmanis_at_mcmanis.com>
To: classiccmp_at_classiccmp.org <classiccmp_at_classiccmp.org>
Date: Tuesday, October 10, 2000 8:52 PM
Subject: Re: 48v dc power
>Why not buy a "dead" UPS that can over the wattage of your system and
>install a 12V in plug on the back. Most of these use a 12V DC input and
>provide acceptable power on the output. Its cheaper than simply buying a
>12V -> 120V inverter _at_600Watts or so.
>
>--Chuck
>
>
>"Shawn T. Rutledge" wrote:
>>
>> On Sat, Sep 16, 2000 at 05:25:23AM -0800, Mike Ford wrote:
>> > I have some 48-57 vdc input, otherwise PC normal output power supplies
for
>> > about $5 each. Ask now if anybody wants some, basically I "think" new
units
>>
>> What I could really use is a couple of 12V input supplies. I want to
>> put a PC in the car and also run a couple of servers from a battery/
>> solar panel system. I know they are available new for $120ish if memory
>> serves but they shouldn't have to cost so much.
>>
>> --
>> _______ Shawn T. Rutledge / KB7PWD
ecloud_at_bigfoot.com
>> (_ | |_) http://www.bigfoot.com/~ecloud
kb7pwd_at_kb7pwd.ampr.org
>> __) | |
\________________________________________________________________
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Received on Tue Oct 10 2000 - 22:41:46 BST