Since I accidentally derailed your thread, I figure I should reply to your
original query.
I'm a fan of reducing complexity where possible. The problem is that
defining complexity is often ISP and site specific, and sometimes the least
complex solution is also impossible to have staff maintain.
Tesla is recommending this because LFP has a very flat discharge curve, so
it is difficult to know the state of charge just from the battery voltage.
In order to provide an accurate battery meter, they have to do coulomb
counting (or some similar method) which keeps track of energy in and out of
We are working on pulling out Mikrotik switches from the network and
looking for vendors to buy the used switches. I have tried SWG and they
went silent on emails so I am looking for another vendor. All hardware is
located in ATL but can bulk ship.
We have almost all models of crs1xx, crs2xx,
In a lot of the US fire stations aren't getting staffed because the
firefighters are totally keeping the jobs staffed at levels that require
massive overtime at 2x pay to spike their income for the purpose of
maximizing retirement pay. And that's not a California specialty.
Happening in NV
This is what Tesla is recommending for the LFP based model 3 and model Y
versions. 100% charge. VS the 80% for the other chemistries. Tesla
is also going more in on LFP solutions and the latest investor
presentation said their proprietary model "breakthrough" battery is no
longer an
Kinda makes you wonder what the actual return is on the MASSIVE $$ that
the feds are dumping into broadband providers? Anyone want to fill in
actual numbers?
On 4/26/24 3:02 PM, Josh Luthman wrote:
Article:
That is a "lie" the BMS is telling you.
When the BMS reports zero, there is always a certain percentage of power
left in the battery.Often around 20%. This is because a battery under
20% (or a similar amount) can be dangerous.
My understanding is that some manufacturers do the same thing
Just to clarify..
In lithium chemistry batteries there are several aging mechanisms. Many of
them occur most often below 20% or above 80% (or 85%). There are also
aging mechanisms which work more slowly the less energy is in the battery.
This applies just as much to LiFePO4 as other
Fire stations here are failing. They can't staff them. Townships can't
fund them so they're paying cities much higher rates per call.
On Fri, Apr 26, 2024 at 7:01 PM Ken Hohhof wrote:
> Everything’s political now, of course.
>
>
>
> But he does have a point when he says “Government-owned
You're surprised the government doesn't waste? What did you do with Chuck?
On Fri, Apr 26, 2024 at 6:38 PM wrote:
> I am surprised they have never broke even.
>
>
>
> *From:* Josh Luthman
> *Sent:* Friday, April 26, 2024 4:02 PM
> *To:* AnimalFarm Microwave Users Group
> *Cc:* John Brewer ;
Everything’s political now, of course.
But he does have a point when he says “Government-owned broadband networks cost
millions of dollars and divert essential funding away from services that really
matter to the public — services such as police and fire, roads, water and
sewer.”
In the
I am surprised they have never broke even.
From: Josh Luthman
Sent: Friday, April 26, 2024 4:02 PM
To: AnimalFarm Microwave Users Group
Cc: John Brewer ; ch...@go-mtc.com
Subject: Re: [AFMUG] ***SPAM*** Govt funded fiber - Utopia
Article:
The thing about a good DC site with gear like ICT-2U4 shelf is that you
don't need to talk someone through troubleshooting individual power
supplies because there are none to fail and cause a truck roll in the first
place, there is just the DC shelf and it's 12 load outputs that all read
out
Article:
https://www.deseret.com/opinion/2024/04/19/government-internet-service-bad-for-taxpayers/
On Fri, Apr 26, 2024 at 4:59 PM Chuck McCown via AF wrote:
> By John Dougall
>
> For the Deseret News
>
> Most Utahns probably agree that government should stick to essential
> government services
Sometimes I wonder if 50% DoD is really 50%.
At least with AGMs, once the battery voltage gets to 42V (or 10.5V per
battery), the curve always seems to be accelerating downward. My gut tells me
that without an LVD, if we got 8 hours runtime to 42V, the batteries would be
dead in more like
Not to mention you get twice the capacity because lifepo4 can take 0% depth
of discharge without damage
On Fri, Apr 26, 2024, 1:26 PM Mike Hammett wrote:
> I've been an AGM guy, but the last quote we did, it was about $777 for
> just the AGMs and $900 for LiFePO4 with everything in a neat and
By John Dougall
For the Deseret News
Most Utahns probably agree that government should stick to essential
government services and stay out of enterprises that are better performed by
the private sector.
Yet, across the country and right here in Utah, more and more governments
are building
I've been an AGM guy, but the last quote we did, it was about $777 for just the
AGMs and $900 for LiFePO4 with everything in a neat and tidy rack-mount box.
-
Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
- Original Message -
Storing a fully charged lithium iron phosphate (LiFePO4) battery has a
minimal impact on its lifespan. In fact, it's recommended to fully charge
LiFePO4 batteries before storing them for long periods of time. These
batteries have a low self-discharge rate, typically losing 2% of their
charge per
On Fri, Apr 26, 2024, 1:02 PM Ken Hohhof wrote:
> And I'm still using AGM batteries while all the cool kids are using
> LiFePO4 with BCMs, so definitely don't listen to me.
>
The more I learn about lithium batteries, the more I feel that lithium has
relatively few advantages for standby
I think it depends on a case by case basis. I've kept everything as AC
with Power supplies for each device simply because I will need to
describe to someone over the phone, in a downpour, at night, how to
troubleshoot a site, when their idea of small tools ends with a 4' Pipe
wrench. Saying
I tend toward a minimum of AC/DC power supplies, and fuse blocks or DC breakers
for the loads. But the other network engineer I work with prefers a dedicated
PSU for each load. So you may not get a uninamous recommendation.Note I tend
toward DC sites and other guy sees that as unnecessary
AC powered site? GTFO.
On Fri, Apr 26, 2024 at 2:49 PM Steve Jones
wrote:
> I have a bunch of various meanwell 48 vDC power supplies mostly 120 and
> 350 watt models with most loads being 45wattish and some 108wattish.
>
> One site im re-cabling has 1100w in PSUs taking a ton of space
I have a bunch of various meanwell 48 vDC power supplies mostly 120 and
350 watt models with most loads being 45wattish and some 108wattish.
One site im re-cabling has 1100w in PSUs taking a ton of space providing
for a total demand of around 440w. Seems overkill and only accounts for the
DC
This isn't exactly the first time I've heard of issues with getting quotes
from Adtran, I had the same experience. We went with another vendor in the
end, you can only chase around people for quotes for so long.
On Fri, Apr 26, 2024 at 1:16 PM Jeff Broadwick - Lists
wrote:
> Matt and Nabeel
Matt and Nabeel should be reaching out shortly.Regards,Jeff Jeff BroadwickCTIconnect312-205-2519 Office574-220-7826 Celljbroadw...@cticonnect.comOn Apr 26, 2024, at 10:28 AM, Jason McKemie wrote:Jeff -I've been working with CTI on quotes for these. I had a conference call in December with (I
Jeff -
I've been working with CTI on quotes for these. I had a conference call in
December with (I believe) you and Mark from Adtran. Nabeel recently reached
out to me seeing if I needed anything and I asked him about getting an
Adtran quote earlier last week, but I still have not heard anything
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