We tried the $65 deep cycle marine batteries from Walmart. They worked
OK, but the best batteries we have found so far are the gel deep cycle
that are used in very large UPS systems. They weigh 110 pounds each and
are rated at 120 amp/hour and they do that for sure.
We actually have a site out of power right now that has been running on
two of those batteries for 14+ hours so far and still shows another 8
hours remaining. This is with three wireless radios, an HP 24 port
switch and a power rebooter all running off it. :)
Travis
Microserv
Mark Nash - Lists wrote:
Ah-hah! I'll give this a try. Unfortunately the batteries I want to
use are $200 each. ;) Got a recommendation on batteries that will
last with constantly being charged by the UPS?
Mark Nash
Network Engineer
UnwiredOnline.Net
350 Holly Street
Junction City, OR 97448
http://www.uwol.net
541-998-5555
541-998-5599 fax
----- Original Message ----- From: "Travis Johnson" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Wednesday, November 15, 2006 6:13 AM
Subject: Re: [WISPA] External battery on UPS
You can't use just 1 battery. The APC units want to see 24vdc, so you
need two batteries running in series.
It works perfectly, as I have 20+ remote locations running off two
gel type batteries. Make sure you install some type of a fuse on the
positive side of the connection.
Travis
Microserv
Mark Nash - Lists wrote:
I believe I remember some discussion on this list on connecting an
external battery to an APC UPS. I'm in the middle of doing it right
now and am having problems. The UPS just beep continuously with the
'bad battery' light on. I'm using a Lifeline deep cycle battery.
Any ideas?
Mark Nash
Network Engineer
UnwiredOnline.Net
350 Holly Street
Junction City, OR 97448
http://www.uwol.net
541-998-5555
541-998-5599 fax
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