Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: John Williamson Newsgroups: alt.comp.os.windows-11,alt.comp.os.windows-10,comp.os.linux.advocacy,comp.os.linux.misc,uk.tech.broadcast Subject: Re: OT - TV Date: Sat, 3 Oct 2026 12:50:51 +0100 Lines: 52 Message-ID: References: <118cshs$2v7m0$1@dont-email.me> <11987r4$dcgn$1@dont-email.me> <11991m3$mv9t$1@dont-email.me> <119as35$18kn0$1@dont-email.me> <119bbo8$1e3hu$1@dont-email.me> <119biqk$1imfn$1@dont-email.me> <119bk3r$1glpo$9@dont-email.me> <119doj1$2bpuv$1@dont-email.me> <119e25d$2ffig$3@dont-email.me> <119g5q3$37679$1@dont-email.me> <119g9hu$386na$3@dont-email.me> <911vomxksl.ln2@Telcontar.valinor> <119is9d$68cr$1@dont-email.me> <119j2qg$8pgq$1@dont-email.me> <119m338.o7c.1@ID-201911.user.individual.net> <119qnr6$2urls$1@dont-email.me> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net F2C4oRSxhYx+W+uRvuJTGA8qhaCMPSMT1AZjN3MnjvGydpOyO6 Cancel-Lock: sha1:cRv890/2676oNCRw+mfL3oXgnzg= sha256:NxcvQqml6vCW0sz2hf38h2Y7zbHi0MbRfeiKBxgDMGE= User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:50.0) Gecko/20100101 Thunderbird/50.0 In-Reply-To: <119qnr6$2urls$1@dont-email.me> Content-Language: en-GB Xref: csiph.com alt.comp.os.windows-11:35680 alt.comp.os.windows-10:196554 comp.os.linux.advocacy:723187 comp.os.linux.misc:92759 uk.tech.broadcast:70696 On 03/10/2026 12:10, Daniel70 wrote: > On 2/10/2026 12:52 am, Frank Slootweg wrote: >> Carlos E. R. wrote: >>> On 2026-09-30 15:28, The Natural Philosopher wrote: >>>> On 30/09/2026 12:37, Paul wrote: >>>>> On Wed, 9/30/2026 5:23 AM, Carlos E.R. wrote: >>> >>>> Automotive is 13.8V rated and that/s it. The alternators wont go >>>> higher. Which is why you use bridged amps >>> >>> I have seen 15 volts. >> >> Yes, I see that as well, or values very close to 15V. >> >> The battery tester [1] I have, has a 'Good' range from 13.4-14.8V >> (with the engine running, i.e. the alternator providing power). >> >> [1] A simple one, plugged into the 'cigarette lighter' socket. >> > (Not being very mechanically minded, myself but) I've thought for a > long, long time that Battery Cells were 2.2Volts each so the six cells > in a Car Battery gives 13.2Volts. > The voltage of a lead acid cell varies between 1.93 volts when flat and 2.11 volts when fully charged. It can rise to 2.33 volts while on charge. This translates to the voltage at the lighter socket being anywhere between 11.8 and 14.4 Volts. When the engine is running, it normally will be about 14.4 volts. 13.2 volts is a safe voltage to hold the battery at while on float charge. (The battery is being used as a backup supply in case of mains failure.) > When recharging a Battery, you want to apply a slightly higher Voltage > ... (as the Battery will pull the charger Voltage down) so 13.4Volts up > to about 14Volts would probably do the job well enough, although > charging the Battery may take a while longer. > > 15Volts might cook the Battery. On occasion, 15 Volt or slightly more can be used ro equalise the charge between the cells, but this will cause some of the water in the electrolyte to split into hydrogen and oxygen. -- Tciao for Now! John.