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RE: Mexwanderer
Some nefarious individuals hacked email, tried to hack my bank info, and screwed up my paypal, amazon and ebay accounts. So I've had no gmail since October 28
I've tried to get a temporary email but I'm always asked to provide an email address for confirmation. I must have ten thousand emails unopened.
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MEXICOWANDERER
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05/13/23 11:35pm |
Around the Campfire
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RE: dead battery has interesting side effect
Batteries and tires are two items I could have sworn I bought yesterday (four years ago).
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MEXICOWANDERER
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04/28/23 08:24pm |
Tech Issues
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RE: telcom battery bank
If anyone tries to gmail email me remember I've been blocked out since October. Use the message system here.
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MEXICOWANDERER
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04/26/23 03:22pm |
Tech Issues
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RE: telcom battery bank
https://www.business-humanrights.org/en/latest-news/mexico-worlds-largest-lithium-reserves-set-to-be-mined-by-company-bacanora-despite-concerns-of-negative-environmental-impacts-2/
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MEXICOWANDERER
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04/26/23 11:15am |
Tech Issues
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RE: telcom battery bank
I've yet to stumble across a conversation that mentions which brand of lithium battery is a standout; survival or cycle wise. That might have to do with the actual weight of each module. It would be hard for me to swallow "a cell is a cell" when it comes to lithium. Unlike western economies I am unable to dig up much information on the subject of China and lithium battery manufacturers. The small experience I have with another type of lithium. Battery is rather sour.
Replacement batteries like for my ereaders use reclaimed cells. Lifespan is less than half of a new battery. The sales pitch though is outright fraud. Keep in mind this is a different type of lithium battery to begin with.
Until LTH starts making lithium batteries here in México I am leery of going automotive size lithium. For solar the Tesla wall pack looks entirely legit. I need more factual info.
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MEXICOWANDERER
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04/25/23 12:15pm |
Tech Issues
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RE: telcom battery bank
The usual scenario for telecom site batteries is design for long float life with perhaps a dozen or so major discharges. But long term survival at low voltages isn't in their job description.
Paying up the yangying for a lifeline means getting incredibly thick plates. Controlled overcharging sheds substantial amounts of plate material. But if they're super thick it's like having a checking account overdraft protection plan.
But the chances of survival for a battery with lesser thickness plates is less.float maintenance for 10 years will consume a chunk of plate layer as well.
By the way Don if you ever get your hands on a regular transformer rectifier battery charger you can throttle it with your variac. A Fred Flintstone grade sort of adjustable charger.
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MEXICOWANDERER
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04/24/23 11:53pm |
Tech Issues
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RE: telcom battery bank
I haven't performed a standardized ampere hour test but I did do this...
Let it sit as I described. Then operated a tube heated 24 volt heated reservoir ResMed BiPap for 17 hours (total) via a 300 watt Samlex PSW inverter, disconnected everything then it sat for (perhaps) 4 days.
Observed voltage 12.69
Keep in mind this battery was picked up March 2012 and stood standby for many years being maintained at strictly observed Concorde float values
Conclusion: like me the battery is obsolete so formal testing would be moot. I mentioned this merely as being curious. There is no reason to be prejudiced by assumption. Until I can walk again or have motive assistance I seem to be "stuck" in an environment that has near infallible electrical service. My neighbor across the street is a regional bigwig for CFE the government electricity agency :D
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MEXICOWANDERER
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04/24/23 02:47am |
Tech Issues
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RE: telcom battery bank
A few months ago I posted a note about recovering a 11 year old neglected Lifeline AGM. To make a short story shorter, I ended up leaving the battery connected at 15.5 volts for two weeks.
No it didn't heat up
It did not lose 1 gram of weight
But yes, it finished holding 13.3 volts @ 55° for a week afterwards.
Neglected? Yes. Disconnected for 3 years
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MEXICOWANDERER
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04/23/23 03:39pm |
Tech Issues
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RE: COVID PERSONAL EXPERIENCES
México (just to be clear)
I had a chat a few days ago with a doctor whom I've known for forty years. A thoratic surgeon organ transplant surgeon with the federal health system (IMSS)
According to Dr Enrique. Every diagnosed Covid patient that was admitted to ICU was unvaccinated. All were 70+ years of age. And the strain is indeed the latest BB variant. The 200 bed (first tier grade) hospital had 13 Covid patients.
Unlike the USA over 70% of the three inoculations permitted were non MRNA. And yet 100% of the intensive care patients had no shot at all according to the surgeon. It's not a debate over mRNA, rather an example of pure statistics.
He said all patients being treated for respiratory distress are tested for COVID . He said Influenza Respiratory Distress Syndrome and Covid are all subsiding in Mexico but Covid remains stubborn and new cases are not limited to just the elderly.
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MEXICOWANDERER
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04/22/23 01:57pm |
Around the Campfire
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RE: Square wave inverter to LFP battery?
I can only comment about things I have seen.
I have not played around with pure sine wave.
But seven different modified sine wave inverters reverted to square wave after battery voltage sags to a critically low level. Trace, Xantrex, and others did it. Forty years ago the instantaneous burn out of an electric blanket control taught me to be careful with asymmetrical wave form power.
Inductors heated up and caused FET transistors to draw additional amperage. Electrical motors ran hotter. Batteries discharged significantly faster.
;) your mileage may vary
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MEXICOWANDERER
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04/22/23 11:49am |
Tech Issues
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RE: Amplifier for television?
Wayback Machine Time
Fifty years ago my parents were heartbroken when they moved and their favorite TV station came in heavily snowed with terrible audio. They already had a Channelmaster rotator and an antenna amplifier perched forty feet above the ground.
I went to a professional Television cable service supply house and purchased what they called a
Cut channel antenna
It was a monster. Although made of aluminum its twenty six dipoles weighed over thirty pounds and it was just shy of ten feet on length. And to add insult to injury a different masthead amplifier was needed.
Even after all that rabbit ears on a TV in the same city as the station would have given a better picture. They had a Motorla Quasar color TV.
The cost was absurd. But they were happy. It was a gift.
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MEXICOWANDERER
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04/22/23 01:38am |
Tech Issues
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Fake Product Reviews? recommendations?
I have issues with too many online products that reviewed well but were ridiculously faulty. Yes I belong to Consumer Reports.
I have slowly migrated to purchasing at Costco. Usually with electrical stuff that swam the Pacific...
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MEXICOWANDERER
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04/11/23 03:47pm |
Around the Campfire
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RE: Good comedies
British
Chef
Keeping up appearances (That's Boo-Kay)
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MEXICOWANDERER
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04/08/23 10:24am |
Around the Campfire
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RE: FYI For Those Who Cross Into Mexico @ Metamoros
What is seldom mentioned is that an overwhelming majority of cases occur in remote barrios and fraccionamientos, far off tourist routes. Matamoros, Nuevo Laredo, and Cd Juarez are hardly tourist meccas. Casasodantes are hardly targets.
Kino Bay, San Carlos, Baja California Sur, Mazatlan, Yucatan are plugged with American Rvers.
I suggest doing more research before arriving at a conclusion. I live here. And yes I'll avoid certain USA cities like the plague for exactly the same reasons. PS I navigate by wheelchair.
Have a nice Semana Santa all :)
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MEXICOWANDERER
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03/21/23 01:52am |
Around the Campfire
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RE: 2019–2022 CORONAVIRUS PANDEMIC POSTINGS
In the case of "long" expired test kits are the trends and tendencies learning toward false positive or false negative results?
Thank You.
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MEXICOWANDERER
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03/10/23 10:30pm |
Around the Campfire
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RE: The [Star] Trek Thread
7 of 9 I would comply...
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MEXICOWANDERER
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03/09/23 07:47pm |
Around the Campfire
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RE: 2019–2022 CORONAVIRUS PANDEMIC POSTINGS
But new evidence Covid 19 is now very common in rats. Please keep up research and monitoring.
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MEXICOWANDERER
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03/09/23 07:43pm |
Around the Campfire
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RE: 2019–2022 CORONAVIRUS PANDEMIC POSTINGS
What masks do for a living?
Take one outside. See your breath? The condensation contains virus. Even from a healthy person and not Covid 19
Put on the mask. See the limitation of condensation distance?
Breathe, talk, yell, scream. Do you see the difference in distance between the two? Remember the CDC recommendation for distancing?
Why is this even a subject of argument?
Amplitude x Time of Exposure
Same physics for all common viruses illnesses
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MEXICOWANDERER
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03/09/23 01:55pm |
Around the Campfire
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RE: 2019–2022 CORONAVIRUS PANDEMIC POSTINGS
I do wonder if Federal Funding cuts have ended large scale messenger RNA projects researching the feasibility of controlling other endemic or pandemic viral events? Even limiting the effects of Nornovirus would be worth examining. But news organizations seem to have lost interest in mRNA oriented reporting. A shame.
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MEXICOWANDERER
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03/06/23 12:05am |
Around the Campfire
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RE: EMS
Surplus Electronics stores sometimes have them. I bought 120 units pallet of them in Rohnert Park California 43 years ago. They were military USAF unmarked 460 watt multitap. -30 20 10 0 + 10 20 30 for $440 Full 50db isolation.
You may have to drive to a big city or to near a USA USMC or USAF base. Mew ones as you know are expensive.
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MEXICOWANDERER
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03/04/23 06:13pm |
Tech Issues
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