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UPS? It's UNINTERRUPTABLE! (Patreon)

Published:
2022-04-20 19:46:52
Imported:
2022-11

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UPS? It's UNINTERRUPTABLE!

Power loss on your PC and Servers is an unexpected issue that should be expected, so prepare yourself with backup batteries! In this episode of L1Rambles, Wendell explains what an uninterruptable power supply is and why the UPS you got may not be the right one! ********************************** Check us out online at the following places: + Website: http://level1techs.com/ + Forums: http://forum.level1techs.com/ + Store: http://store.level1techs.com/ + Patreon: https://www.patreon.com/level1 + L1 Twitter: https://twitter.com/level1techs + L1/PGP Streaming: https://www.twitch.tv/teampgp + Business Inquiries/Brand Integrations: Queries@level1techs.com *IMPORTANT* Any email lacking “level1techs.com” should be ignored and immediately reported to Queries@level1techs.com. ------------------------------------------------------------------------------------------------------------- Intro and Outro Music: "Earth Bound" by Slynk Other Music: "Lively" & "FollowHer" Zeeky Beats

Comments

Walt

Super weird, can’t find the smart1200psglcd anywhere! Only thing I find on manufacturer’s site is an estimated runtime chart https://assets.tripplite.com/ups-runtime-chart/smart1200psglcd-runtime-chart-en.pdf Anyone have luck finding it in stock ?

Anonymous

So, I have had a similar problem, I have dual APC SMT3000RM2U with 100Ah of AGM battery in the rack now and that powers both PDUs that feed the rack and my desktop. One of the two SMT3000RM2U recently "died" and so I was off to look for a replacement, and a like for like on eBay was only ~$300 without batteries, not bad, but if it's been in service that long, it might not have much life left in it. So I started looking around, and I could find the APC SRT3000RMXLA-NC on eBay for ~$2,000 as kinda a direct replacement for mine but newer, but for that kinda money and the fact it was 96VDC and not 48VDC means new/more batteries and more money, so now we are looking at like $6,000+ for a UPS solution. So this was starting to get to stupid levels of spending for pretty crap run times. So I started researching, and after many hours of strange rabbit holes, I stumbled across Off-Grid Inverters. What a fun new world of toys I have found as a UPS replacement, so, more research. I originally settled on the MPP Solar PIP-LV-MK SERIES – ZERO TRANSFER TIME inverters, you can stack them 9 deep at 3KW a pop, they can be made to run split phase, so now I could keep the HVAC on while the power is out and keep the servers happy, but alas, out of stock everywhere. So, backup plan, give a set of the Growatt 3kW Stackable Off-Grid Inverter a go, it is on average only a 10ms transfer time, and most if not all of my equipment can handle ~17ms at 75% load hold up time. Simular setup, can stack 8-9 of these guys up and they can do split phase, and bonus points, they can talk to the BMS on a lot of the server rack style batteries so I can run the batteries down to a % instead of a rough voltage measurement as a guess where the SoC (State of Charge) is. So, now I just needed batteries, more research, found that the EG4-LL Lithium Battery | 48V 100AH are stackable up to like 18 deep and have a design life of ~15 years if you only drop them to 80% Depth of Discharge every single day. So that kinda takes care of having to replace the batteries any time soon and unlike SLA/AGM batteries where there is damage if they discharge below ~50%, not the case here. So, some more research, grab a Class-T fuse for the main run and some odds and ends, and for ~$4,000 I have a system that I can expand to support the whole house if I want. Now I am just waiting on the battery to show up, then I have to build it and test it. That's more or less the story of how I got pissed off at the UPS market and decided to DIY my own UPS to meet my needs and not give APC any more of my money.

Anonymous

Some of the new lifepo4 solar generators/power stations have a ups function…it would be cool to see some comparisons between those and a traditional ups.