I wonder why you need to exercise them when you don’t on the large stationary batts that are made for float duty. I know Ni-Cds generate a memory and need to be exercised, but have not heard of this on lead acid before.
If this is a thing, the valre-eltek rectifier with the BC-2000 card can be set to automatically do a scheduled load test pretty much of any schedule you can think of. From: Harold Bledsoe Sent: Monday, October 16, 2017 10:04 AM To: af@afmug.com Subject: Re: [AFMUG] Batt Prices A hybrid deep cycle marine battery is good for around 80-100 cycles. For backup purposes it can work but keep in mind that you still need to exercise the battery at least 1-2 times per month. Perma-float will kill it if doesn't cycle occasionally. Still as a backup-only you can get 5 years from it. 10-15 years is OK from a real deep cycle battery. If you want a lot of backup capacity, look at a forklift battery. If you can handle the logistics (weight) it is really good cost overall and good for 15-20 years. They just weigh a ton (literally). -Hal On Mon, Oct 16, 2017 at 7:46 AM Adam Moffett <dmmoff...@gmail.com> wrote: compare Wh / pound if you want to catch the liars. If I look at a bunch of 100ah batteries, and one of them is 10 pounds less than the others, then i believe that one is optimistically interpreting a test result. ------ Original Message ------ From: ch...@wbmfg.com To: af@afmug.com Sent: 10/14/2017 4:57:32 PM Subject: Re: [AFMUG] Batt Prices >Lead, acid. >Not in a moving vehicle, in an temperature controlled space. >Not cycled. >Float operation. > >I think that even if they were cheap crap, they might do OK. > > >-----Original Message----- From: Robert >Sent: Saturday, October 14, 2017 2:31 PM >To: af@afmug.com >Subject: Re: [AFMUG] Batt Prices > >So is there something about these batteries that gives you a good >feeling as to actual quality beyond the marketing blurb with the >product? I only have the pure weight to be an independent judge right >now. > >On 10/14/17 1:14 PM, Bill Prince wrote: >>Sho-nuff >> >> >>bp >><part15sbs{at}gmail{dot}com> >> >>On 10/14/2017 1:13 PM, ch...@wbmfg.com wrote: >>>Yeahbut, I had to do some manual screen scraping and data entry.� >>>So I was a bit lazy.� And since I really don�t care about >>>physical specs (being a cheap ass) that is all I did.� So, yeah, I >>>can.� Do you want the spread sheet?� Winking smile >>>� >>>*From:* Bill Prince >>>*Sent:* Saturday, October 14, 2017 2:12 PM >>>*To:* af@afmug.com >>>*Subject:* Re: [AFMUG] Batt Prices >>>� >>> >>>Can you add column(s) for group size and weight? >>> >>>� >>> >>>bp >>><part15sbs{at}gmail{dot}com> >>> >>>On 10/14/2017 12:55 PM, ch...@wbmfg.com wrote: >>>>My list so far.� Price per watt hour is based on the 100 hour >>>>discharge rate.� >>> >>