https://theaquariumwiki.com/w/index.php?title=Talk:DIY_Emergency_Power_Backup&feed=atom&action=historyTalk:DIY Emergency Power Backup - Revision history2024-03-29T14:49:06ZRevision history for this page on the wikiMediaWiki 1.29.2https://theaquariumwiki.com/w/index.php?title=Talk:DIY_Emergency_Power_Backup&diff=66921&oldid=prevHuw Powell at 02:29, 14 May 20112011-05-14T02:29:12Z<p></p>
<p><b>New page</b></p><div>Comments welcome... :)<br />
--[[User:Quatermass|Quatermass]] 03:58, 9 May 2011 (CDT)<br />
:Excellent, thanks for posting this! We should "see also" between the two articles I suspect. Oh, and "Charging SLA batteries give off hydrogen which can be toxic and highly inflammable in a closed area!" the whole point of using SLA is not to have gas discharge into the house. They are sealed, and don't/can't give off gas. I love the "project box" you chose for the auto-switcher! Don't they sell electronic project boxes in the UK? [[User:Huw Powell|Huw Powell]] 20:46, 9 May 2011 (CDT)<br />
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Good idea about the 'see also'.<br />
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All batteries give off gas when in use. The SLA do as well. They have gas permeable seals which allows gases in/out but no liquids of course. The main point of a SLA is you can position it any way up you wish.<br />
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Sure we have project boxes here. :-) But after looking at the prices, I decided a food box was much cheaper!<br />
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My next project is a water alarm detector. Maplin sold one last year (they've stopped) and I bought one out of curiosity. But it uses a tiny A23 (12V) battery for goodness sake which needs constant replacement every 2 months even though it's not been activated. So a pp3 9V battery, 2 wires close together outside a small box and a musical piezo buzzer inside should be enough and will not drain the battery until used. Should last 2 years with a decent alkaline (8-10 if I use a lithium). --[[User:Quatermass|Quatermass]] 15:34, 10 May 2011 (CDT)<br />
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:Water level? Anyway, um, you have all the 12v you need in your backup battery, don't you? Just run the thing off your 12v bus! I did not know the SLAs had gas permeable seals. Interesting. [[User:Huw Powell|Huw Powell]] 21:35, 11 May 2011 (CDT)<br />
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:Spilled water inside my cabinet. Yes I could do that with the battery. But the engineer in me is shouting, "make something more efficient". ;) --[[User:Quatermass|Quatermass]] 03:04, 12 May 2011 (CDT)<br />
::Water on the floor is the embarrassing clumsiness of our hobby... I get mad at myself, then I say to myself "it's only a few stinky cc.s from those hoses I should have drained!" Luckily, or sadly, there is no SWMBO to opine differently. [[User:Huw Powell|Huw Powell]] 21:29, 13 May 2011 (CDT)</div>Huw Powell