{"id":27111,"date":"2023-04-10T20:49:41","date_gmt":"2023-04-11T00:49:41","guid":{"rendered":"https:\/\/ckms.ca\/?p=27111"},"modified":"2023-04-10T20:51:09","modified_gmt":"2023-04-11T00:51:09","slug":"belkin-750va-ups","status":"publish","type":"post","link":"https:\/\/blog.ckms.ca\/?p=27111","title":{"rendered":"Belkin 750VA UPS"},"content":{"rendered":"\n

2023-04-02 – on power outage, the network stack went off, ups did not hold power up; suspect battery is nfg.<\/p>\n\n\n\n

2023-04-06 – remove from network stack, replace with the space that Joan was using (wtf should I use my equipment for a comapny that won’t provide); it has good battry (tested to 8.34Ah using my cheap chinese load tester). <\/p>\n\n\n\n

2023-04-09 – do I misunderstand UPS ratings? If I have a750VA UPS running a 40w fan (0.85pf so 40\/.85 = 47VA); so I should get 750VA\/47VA = 16.9 hours? But in practice, I get no more than 1h30mins!?<\/p>\n\n\n\n

turns out indeed i are misunderstanding…. the 750VA rating on a UPS is the load it will support for some defined time<\/strong><\/em>. So for this UPS, it will provide 5 mins at 1\/2 load (375VA). So a 47VA fan might run 375 \/ 47 * 5 = 40 mins<\/p>\n\n\n\n

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2023-04-10 – tested comms with Blekin APM v2.5; works; was able to do a self-test; not much other monitiring possible.<\/p>\n\n\n\n

Keep as spare.<\/p>\n\n\n\n

<\/p>\n\n\n\n

\n\n\n\n

Raw notes follow:<\/p>\n\n\n\n

belkin 750va charged up itself, run fan (40W, 0.85pf, 47va), 750va\/47=16hrs (expected); start: 15:36, off: 16:23, so 47 minutes runtime. WTF?
test ups comms on balrog; device manger detects; install Belkin aPM software v2.5; is recognized, set a 10min selft test<\/p>\n\n\n\n

40w\/51VA fan on 16-26-00, off 17:23, so got ~57 minutes @ 51va\/40W<\/p>\n\n\n\n

apc, start 17:50, off 5 mins later.
the battery in this one is likely nfg. but has barely been used? m easured 6.0 Ah 2022-06-04, so ~10 months., recharge, ~3 hours; 8.34Ah tested; recharge; in UPS for powering fan: ????<\/p>\n\n\n\n

what are y expectations for an APC-brand UPS with APC-brand replacement batteries purchased from Amazon.ca.
First, if I charge the battery (insert into UPS, wait a few hours, sez battery is charged. remove from UPS, use cheap load meter, test at 1A draw, get 6.5Ah. Repeat
sendon. I got ~10 months out of this battery. Unless I missunderstnad, it hans’;t gone thruogh very many cycles; maybe twice in the year we had a power fail long enough to have the UPS shut down. it might be doing self tests; didn’t have that ups monitored, since wive’s thin client and can’t install powerchute.<\/p>\n","protected":false},"excerpt":{"rendered":"

2023-04-02 – on power outage, the network stack went off, ups did…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[282],"tags":[1235,1732],"class_list":["post-27111","post","type-post","status-publish","format-standard","hentry","category-article","tag-network","tag-ups","wpcat-282-id"],"_links":{"self":[{"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=\/wp\/v2\/posts\/27111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27111"}],"version-history":[{"count":0,"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=\/wp\/v2\/posts\/27111\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ckms.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}