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Can you plug a UPS into another UPS? - Super User 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 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 choose a UPS calculate power for a new PC 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 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 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 to silence bad battery alarm in a APC Back-UPS 550 UPS? This blog post from 2012 does a decent job of explaining specifically how to use the APC UPS Daemon software to disable alarms Here is the command line flow once you get the APC UPS Daemon software software installed and apctest is available: sudo apctest 2012-11-18 23:30:50 apctest 3 14 8 (16 January 2010) debian Checking configuration
How to stop Powered by Admiral anti ad-block pop-up messages? I've recently noticed a TON of sites using this Admiral anti-ad-blocking software Your experience is important to us It looks like you are using an adblocker Disable Your Adblocker Disable my
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 do I get rid of the Norton Download Manager that keeps . . . - Super User 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 fault . . . 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