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Home Automation & Networking
Need a recommendation for a UPS to handle my homelab
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<blockquote data-quote="badwhitevision" data-source="post: 2522470" data-attributes="member: 127847"><p>Would you consider DIY options?</p><p></p><p>I looked for one such UPS too, but I didn't want to use the cheap ones which are either square wave or modified sine wave and not pure sine wave.</p><p></p><p>The reason is because I don't know how tolerant my adapters/devices would be to modified sine wave AC. Most times, these are only intended to be used to prevent data loss and not for redundancy. Also they are heavy.</p><p></p><p>I used an 18650 Li-ion pack and a few buck boost converters to run this entire setup.</p><p></p><p>I have multiple such "UPS" all across my house. (For the router, my HDD, a Pi 0 and another Pi 5)</p><p></p><p>Do read this post (it's very vague though and assumes you already have DIY experience) and DM me/post there if you have any doubts.</p><p></p><p>[URL unfurl="true"]https://techenclave.com/threads/building-a-ups-for-a-3-5-inch-hdd-tidbits.219701/[/URL]</p><p></p><p>It should be very similar, since the SFF that you use also uses a DC input (19V adapter if I'm not wrong) and not AC.</p><p></p><p>Cost wise, this will definitely run you more than the cheapest 600VA UPS (read Zebronics) but you should be able to finish the entire build within 4 or 5K. 18650 cells are the major cost of the build and it depends on how long you intend to power the devices post failure.</p><p></p><p>Also note that, you can add an ESP32/8266 to this mix and have it inform you of loss of power and then power off your HomeLab (except the router) after a few hours of running on batteries and the charge is about to drain out.</p></blockquote><p></p>
[QUOTE="badwhitevision, post: 2522470, member: 127847"] Would you consider DIY options? I looked for one such UPS too, but I didn't want to use the cheap ones which are either square wave or modified sine wave and not pure sine wave. The reason is because I don't know how tolerant my adapters/devices would be to modified sine wave AC. Most times, these are only intended to be used to prevent data loss and not for redundancy. Also they are heavy. I used an 18650 Li-ion pack and a few buck boost converters to run this entire setup. I have multiple such "UPS" all across my house. (For the router, my HDD, a Pi 0 and another Pi 5) Do read this post (it's very vague though and assumes you already have DIY experience) and DM me/post there if you have any doubts. [URL unfurl="true"]https://techenclave.com/threads/building-a-ups-for-a-3-5-inch-hdd-tidbits.219701/[/URL] It should be very similar, since the SFF that you use also uses a DC input (19V adapter if I'm not wrong) and not AC. Cost wise, this will definitely run you more than the cheapest 600VA UPS (read Zebronics) but you should be able to finish the entire build within 4 or 5K. 18650 cells are the major cost of the build and it depends on how long you intend to power the devices post failure. Also note that, you can add an ESP32/8266 to this mix and have it inform you of loss of power and then power off your HomeLab (except the router) after a few hours of running on batteries and the charge is about to drain out. [/QUOTE]
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