I just use AGM everywhere. Screw maintaining wet cells.
On 5/31/2016 11:14 AM, Paul McCall wrote:
We have 22 towers that have the battery plant indoors. 4 batteries at
$ 100 each vs $ 200 each (Optima D31M) saves $ 400 per tower ($ 8800
total)
We need to be doing routine maintenance and inspection on each tower
anyways every 6 months or so.
The cost savings is something to consider.
For outdoor, we can stick with AGM.
Paul
*From:*Af [mailto:[email protected]] *On Behalf Of *Jesse DuPont
*Sent:* Tuesday, May 31, 2016 11:27 AM
*To:* [email protected]
*Subject:* Re: [AFMUG] Deka 7T31 non-AGM batteries
Adding to what Chuck said, you'd also only want to use flooded batts
in a vented space. AGM are safer in sealed enclosure.
*_Jesse DuPont_*
Network Architect
email: [email protected]
<mailto:[email protected]>
Celerity Networks LLC
Celerity Broadband LLC
Like us! facebook.com/celeritynetworksllc
Like us! facebook.com/celeritybroadband
On 5/31/16 8:27 AM, Chuck McCown wrote:
Flooded cells will have the lowest price per watt hour and the
longest life if in a temp controlled environment.
However, they are classified as hazardous materials due to the
amount of liquid electrolyte and that may affect zoning and
insurance (if any one asks).
I would not use a lead acid flooded cell unless it was in a temp
controlled environment.
If you have 120 batts to replace, sounds like they might be
outdoors. I would use AGM.
*From:*Paul McCall <mailto:[email protected]>
*Sent:*Tuesday, May 31, 2016 7:38 AM
*To:*[email protected] <mailto:[email protected]>
*Subject:*[AFMUG] Deka 7T31 non-AGM batteries
Guys,
We have always used the Optima D31M AGM batteries (just because).
Well…. It’s that time… time to replace 90% of them, and looking
for alternatives. Having to buy 120+ batteries… cost becomes
something to at least look at.
My local supplier says that FPL (Florida Power & Light – aka
Florida Flicker and Flash) uses the Deka 7T31 non-AGM batteries
(Lead Acid) and they are a lot cheaper (waiting on price – I found
them quickly for $ 100 each). They are a 100ah batteries. Here
is the spec otherwise
http://www.eastpennmanufacturing.com/wp-content/uploads/Deka-Commercial-Batteries-Flyer-0010.pdf
(minus the ah rating which I got from Deka over the phone).
Does lead acid have distinct disadvantages from AGM? Also,
anybody using Li-Ion yet for a tower battery bank? Probably not
cost-effective ?
Paul
Paul McCall, President
PDMNet, Inc. / Florida Broadband, Inc.
658 Old Dixie Highway
Vero Beach, FL 32962
772-564-6800
[email protected] <mailto:[email protected]>
www.pdmnet.com <http://www.pdmnet.com>
www.floridabroadband.com <http://www.floridabroadband.com>
