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Looking for a home UPS that is smart
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<blockquote data-quote="blr_p" data-source="post: 2188369" data-attributes="member: 10952"><p>Why not ? this isn't rocket science. Gel batteries came out in the 70s. Exide has partnerships with other companies. Fifty years later India has surely caught up. Exide is more credible than Luminous.</p><p></p><p>Another powersafe battery for online UPS, this is the <a href="https://docs.exideindustries.com/pdf/industrial-batteries/tubular-powersafe.pdf" target="_blank"><u>XHD tubular gel</u></a> which seems similar to the solatron. But the max size is only 165 AH whose weight is similar to the Solatron 150 AH</p><p></p><p>[ATTACH=full]83138[/ATTACH]</p><p>Here the 80% DoD is 600 - 1000 cycles compared to fewer for the NXT range</p><p></p><p>[ATTACH=full]83139[/ATTACH]</p><p></p><p>The difference with XHD is torr tubes. Why that increases cycle life i'm not sure.</p><p></p><p>The point here is if an online UPS VRLA battery can touch a 1000 cycles then why is it so hard to believe a similar good quality solar VRLA battery in an offline UPS application cannot do it <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>There is no reason a well constructed VRLA battery cannot match a flooded battery if temperatures are not too high. If there is careful charging with no over charging. So if the operating temps is 40 degrees C then flooded is the better choice. But closer to 30 the comparison could be more evenly matched.</p><p></p><p></p><p>What has me bothered is the float service life. First the NXT</p><p></p><p></p><p>[ATTACH=full]83142[/ATTACH]</p><p></p><p>About 2.5 to just under 4 years at 30 degrees C</p><p></p><p>And next is the XHD</p><p></p><p>[ATTACH=full]83140[/ATTACH]</p><p></p><p></p><p>What does this mean ? if battery is stored around the 30 degree C mark its useful life is between 3 - 5 years ??</p><p></p><p>Forget cycle count, if there is a hard limit built here in terms of life the thing dies before you even get to fully cycle it !!</p><p></p><p>Why does only the VRLA online series publish float life info and not the solar VRLA.....</p><p></p><p>From your experience with the APC Smart UPS which is an online UPS, no brainer choice is to go with the flooded EL series and not any VRLA</p><p></p><p>But does that hold true for offline UPS which is my use case. Flin is not an online UPS. The stress it puts on the battery will be less.</p></blockquote><p></p>
[QUOTE="blr_p, post: 2188369, member: 10952"] Why not ? this isn't rocket science. Gel batteries came out in the 70s. Exide has partnerships with other companies. Fifty years later India has surely caught up. Exide is more credible than Luminous. Another powersafe battery for online UPS, this is the [URL='https://docs.exideindustries.com/pdf/industrial-batteries/tubular-powersafe.pdf'][U]XHD tubular gel[/U][/URL] which seems similar to the solatron. But the max size is only 165 AH whose weight is similar to the Solatron 150 AH [ATTACH type="full" alt="Exide XHD tubular-powersafe_cycle life.jpg"]83138[/ATTACH] Here the 80% DoD is 600 - 1000 cycles compared to fewer for the NXT range [ATTACH type="full" alt="Exide NXT cycle life.jpg"]83139[/ATTACH] The difference with XHD is torr tubes. Why that increases cycle life i'm not sure. The point here is if an online UPS VRLA battery can touch a 1000 cycles then why is it so hard to believe a similar good quality solar VRLA battery in an offline UPS application cannot do it :) There is no reason a well constructed VRLA battery cannot match a flooded battery if temperatures are not too high. If there is careful charging with no over charging. So if the operating temps is 40 degrees C then flooded is the better choice. But closer to 30 the comparison could be more evenly matched. What has me bothered is the float service life. First the NXT [ATTACH type="full" alt="Exide NXT-powersafe_float service life.jpg"]83142[/ATTACH] About 2.5 to just under 4 years at 30 degrees C And next is the XHD [ATTACH type="full" alt="Exide XHD tubular-powersafe_float cycle life.jpg"]83140[/ATTACH] What does this mean ? if battery is stored around the 30 degree C mark its useful life is between 3 - 5 years ?? Forget cycle count, if there is a hard limit built here in terms of life the thing dies before you even get to fully cycle it !! Why does only the VRLA online series publish float life info and not the solar VRLA..... From your experience with the APC Smart UPS which is an online UPS, no brainer choice is to go with the flooded EL series and not any VRLA But does that hold true for offline UPS which is my use case. Flin is not an online UPS. The stress it puts on the battery will be less. [/QUOTE]
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