Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E. R." Newsgroups: comp.os.linux.misc,alt.comp.os.windows-11 Subject: Re: Resiliency of communication channels Date: Fri, 15 Aug 2025 12:09:23 +0200 Lines: 33 Message-ID: References: <106mke5$1di32$1@dont-email.me> <10746fg$h625$2@dont-email.me> <20250808081850.00002e14@gmail.com> <1075pla$ukab$1@dont-email.me> <20250808144937.000021b1@gmail.com> <10761aq$vv6o$3@dont-email.me> <10777f7$17kq4$8@dont-email.me> <6uqkmlxjb8.ln2@Telcontar.valinor> <1079oe9$1ppd6$6@dont-email.me> <107ab26.3rg.1@ID-201911.user.individual.net> <3rkmmlxplv.ln2@Telcontar.valinor> <107cipt$2g8mr$9@dont-email.me> <107ghmk$3j56j$4@dont-email.me> <107kfi2$d4vh$21@dont-email.me> <107md3h$tn2j$5@dont-email.me> <107n07f$11pib$1@dont-email.me> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net M4ino1B9733gdmwp/1bYcwwEySL7OYU4sz6Z4aV0BiqSP+lc3b Cancel-Lock: sha1:ELgsYpzNSCrThTyOHDnzABJhvaE= sha256:l17m4C55ivt5/49OHFmPEiNjBtssDu9QTCW2iK+R7ks= User-Agent: Mozilla Thunderbird Content-Language: en-CA, es-ANY In-Reply-To: <107n07f$11pib$1@dont-email.me> Xref: csiph.com comp.os.linux.misc:71192 alt.comp.os.windows-11:22174 On 2025-08-15 11:55, Nuno Silva wrote: > On 2025-08-15, Lawrence D’Oliveiro wrote: > >> On Thu, 14 Aug 2025 11:59:14 +0100, The Natural Philosopher wrote: >> >>> In the UK fibre is powered at the far end by fully 24x7 reliable power >>> supplies,. >> >> But not at your end. > > If it is indeed powered on the ISP's side, that ought to mean that all > you need is a UPS? Yes, but you also need to maintain it. Some UPS claim that the batteries last 4 years, but in my experience they last 2. There is the possibility that brand name batteries are actually better and last 4 years. Many UPS don't say the status of the battery, you have to actually test them manually with a stop watch. They may have a display, but that one may be difficult to see when the UPS is out of sight. Only some UPS can be connected to a computer for monitoring. My take is that most UPS overcharge the batteries. They are float-charging to 100%, with a constant current flow that kills gel filled batteries, drying them out eventually. With the old liquid filled batteries you'd simply replenish with distilled water once a month and they could last several years. -- Cheers, Carlos E.R.