Re: [AFMUG] Deka 7T31 non-AGM batteries

[Jesse DuPont]

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: jesse.dup...@celeritycorp.net 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 Sent: Tuesday, May 31, 2016 7:38 AM To: af@afmug.com 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  pa...@pdmnet.net www.pdmnet.com www.floridabroadband.com