Can you plug a UPS into another UPS? - Super User
Mar 11, 2017 · Almost all UPS equipment interprets a stepped sine wave as bad power. Therefore, as soon as the first UPS goes on battery and outputs a stepped sine wave, the second UPS in the series will read that input as bad power and convert to battery also. With both UPS systems running on battery at the same time, there is no increase in battery capacity.
power - When do I need a pure sine wave UPS? - Super User
May 9, 2015 · If a UPS lasts long enough, the cost of replacement batteries overruns the initial cost. If you are buying quality UPSes, therefore, give more consideration to the running cost of the UPS than to the initial purchase price.⁶. A midrange UPS from the same manufacturer costs about ⅓ that of a true-sine UPS with the same headline specs.
How to upgrade all Python packages with pip - Stack Overflow
@RefaelAckermann Spinning up pip is order of magnitude faster than checking version of a package over network so that's number of checks which should be optimized not number of spin ups. Mine makes n checks, yours makes n+m checks. –
How to choose a UPS / calculate power for a new PC
Dec 9, 2011 · Some new information for an old thread. Your UPS should be capable of providing the max potential draw of your PSU. I mean, the entire point of the UPS is to protect your data so it should not be the weak link in the chain of components. Also, the price jump to a higher rated UPS isn't that much in the scheme of things.
Is it ok to turn off and unplug my ups at night? - Super User
Feb 13, 2018 · Every night, with the UPS unplugged, the batteries self-discharge. Every day, when you plug the UPS back in, the batteries have to charge back up to compensate for the self-discharge. This daily partial discharge, full charge cycle will reduce the battery life. Typically, a UPSes batteries have to be replaced every three to five years.
Why is my Eaton UPS beeping? - Super User
Dec 24, 2021 · root@srv ~# upsc eaton ups.load 14 This means a 14% load. The battery is charged at 91%. While the UPS behaviour does not suggest it, I see that. root@srv ~# upsc eaton ups.alarm Replace battery! I do not know if this is a default setting or there is indeed a problem with the (brand new) battery. The manual says
How do I get rid of the Norton Download Manager that keeps
Oct 11, 2015 · After doing everything listed, if you are still getting the pop ups and reminders, this should take care of it. There is a folder that remains buried in C:\Users\[Primary User's Name]\AppData\Local\Temp folder. It just has a long string of letters and numbers. If you double click and go into it you will see the icons for the pop up message.
power supply - How can I prevent my PC from tripping the ARC …
Jul 24, 2020 · As others noted, plugging into a UPS, which usually has noise cleaning circuitry may clean up the RF from the computer enough to stop the problem. There are also dedicated EMI/RFI filters that 'clean up' 'dirty' power. I had one computer that kept rebooting till I put an EMI/RFI filter between it and the world.
View past notifications in Windows 10 and 11? - Super User
New with Windows 10 seems to be the Notification Area. Now, I've seen a few notifications (in the Action Center). The problem is that I haven't understood any of them (actively using computers for 30
If my power supply is 700w, do I need a 700w UPS?
Aug 14, 2010 · Acceptable models include APC’s Smart-UPS®, Smart-UPS® XL and Smart-UPS® RT family of UPSs. However if, a Smart-UPS SC or Back-UPS RS is to be used, the UPS should be sized accordingly. A critical factor to consider in avoiding an overload trip fault is the ‘nominal’ power rating of the power supplies, not the actual steady state power ...