You will also want to use a battery that has similar characteristics as the
batteries that are already in it.
Not all batteries charge and disipate at the same rate. So you would need
to know what batteries are in it already and then compare manufacturer's
detail specs.
Otherwise what happens is a year down the road, one set of batteries work
and the other set of batteries deteriorates, and your run-time goes way way
down.
A lot of people don't realize this, if they do not have a lot of power
failures.
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message -----
From: "Travis Johnson" <[EMAIL PROTECTED]>
To: "WISPA General List" <[email protected]>
Sent: Wednesday, November 15, 2006 9:13 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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