Ok, so you put 4 when you use 2 AGM on series ? Gino A. Villarini [EMAIL PROTECTED] Aeronet Wireless Broadband Corp. tel 787.273.4143 fax 787.273.4145
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Travis Johnson Sent: Wednesday, November 15, 2006 2:51 PM To: WISPA General List Subject: Re: [WISPA] External battery on UPS We adjust the number of "external batteries" in the APC configuration settings. Usually we set it to 2x the number of actual batteries we have installed and it seems pretty accurate. Travis Microserv Brian Rohrbacher wrote: > What is used to tell you how much runtime is left? Have you found it > accurate? > > Brian > > Travis Johnson wrote: > >> 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 >>>>> >>>>> >>>> -- >>>> WISPA Wireless List: wireless@wispa.org >>>> >>>> Subscribe/Unsubscribe: >>>> http://lists.wispa.org/mailman/listinfo/wireless >>>> >>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>>> >>> >>> >>> -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
