mountianrider Posted September 27, 2015 Share Posted September 27, 2015 I've taken over a visonic system, owner has no idea when it was serviced. Which leads me to ask the question, how often should they be changed? (CR123, Bell etc?) I meter the batt and change if below 2.8v but rule of thumb? Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/ Share on other sites More sharing options...
Adi Posted September 27, 2015 Share Posted September 27, 2015 2.8/2.7 is the threshold of low battery. if 2.8 i doubt they wouldlast until next rmv. 2 years for now, although most vis devices will get 3 oor near to 3 years,, not worth the ballache, swap at 2. I really can't be ar**** with it anymore. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431345 Share on other sites More sharing options...
mountianrider Posted September 27, 2015 Author Share Posted September 27, 2015 thanks bud, I was on the right track! Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431348 Share on other sites More sharing options...
james.wilson Posted September 27, 2015 Share Posted September 27, 2015 a volt check means nowt, you never did that on the sla as a good test. Depends on the gear experience will out. securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431369 Share on other sites More sharing options...
Adi Posted September 27, 2015 Share Posted September 27, 2015 Why i typed now i dont know, i meant me. on site test for lithium is volts. I really can't be ar**** with it anymore. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431375 Share on other sites More sharing options...
james.wilson Posted September 27, 2015 Share Posted September 27, 2015 means nowt as yu know securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431384 Share on other sites More sharing options...
sixwheeledbeast Posted September 28, 2015 Share Posted September 28, 2015 Yearly for CR's, 2 years for Bells, here on that kit. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431390 Share on other sites More sharing options...
james.wilson Posted September 28, 2015 Share Posted September 28, 2015 The problem is a litium cell will loose approx 0.5 - 2% of its capacity a year depending on brand. Couple this with the low power draw of wireless devices the curve just drops of completely very quickly. The difficulty for the manufacturers is at what point do thy report a low battery. Too early and it looks like its running out of batteries, too late and the low battery running time is either very short of non existant. The low voltage volts will depend on the manufacturer and cannot imo be the same for all manufactures. I suppose the answer is to have it programmable so the maintainer can choose when it goes into low battery and how long it will function for in tht state before the supervision failure securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431393 Share on other sites More sharing options...
RichL Posted September 28, 2015 Share Posted September 28, 2015 The problem is a litium cell will loose approx 0.5 - 2% of its capacity a year depending on brand. Couple this with the low power draw of wireless devices the curve just drops of completely very quickly. The difficulty for the manufacturers is at what point do thy report a low battery. Too early and it looks like its running out of batteries, too late and the low battery running time is either very short of non existant. The low voltage volts will depend on the manufacturer and cannot imo be the same for all manufactures. I suppose the answer is to have it programmable so the maintainer can choose when it goes into low battery and how long it will function for in tht state before the supervision failure cr123.jpg Where did you get the data/graph from JW, is it something I can repost elsewhere? Originally said by Charles Babbage On two occasions I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431395 Share on other sites More sharing options...
james.wilson Posted September 28, 2015 Share Posted September 28, 2015 http://www.powerstream.com/cr123a-tests.htm securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/39154-wireless-batteries/#findComment-431400 Share on other sites More sharing options...
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