As a professional fire protection engineer (but not involved in end-user
product development whatsoever), I can tell you that protection of stored and
in-use lithium-ion and similar types of batteries is currently a very hot topic
(pun intended). The phenomenon of thermal runaway poses new and
On 6/14/2024 8:19 AM, Adam Deem via KRnet wrote:
There is a YouTube channel run by a guy named Will Prowse who does
some great testing on batteries including testing them and tearing
them apart to see what actual BMS the manufacturer is using.
+
In a deep cycle application such as providing backup power to systems after
a charging system failure, A good LiFePO4 battery will provide much longer
service at a steady voltage than any lead-acid chemistry and at about of
the 50% weight per AH and for about quadruple the discharge cycles. There
i
On 6/13/2024 10:58 PM, Jeff Scott via KRnet wrote:
I once heard or read that it was lithium that they added to
the atomic bomb in WWII to increase the yield. As atomic weapons were
not a settled science at that point they added too much on one test and
they nearly wiped out a few observers.
++
Jeff thank you this has long been my position. The steady state delivery
after a dynamo goes down also biases me to SLA...
https://youtu.be/FPBaAil4dNg?feature=shared
On Thu, Jun 13, 2024, 4:53 PM Jeff York via KRnet
wrote:
> I spent years as an engineer in Industrial Lithium Ion technology. Mo
> ++
>
> There are some changes in the battery technology chemistry they claim is
> safer, lithium iron phosphate (?) for one but I'm not a chemist or an
> engineer. I once heard or rea
On 6/13/2024 4:53 PM, Jeff York via KRnet wrote:
the myth that there is so much new tech in Lithium Ion. Bunk...it's
the same as it was 40 years ago. The changes are in the BMS systems.
+++
I spent years as an engineer in Industrial Lithium Ion technology. Mostly
BMS like Lithium system charging design and such. I actually even own an EV
and its really cool but its just not prime time and I never see it go
there.
As loud as I can type it, I would never ever fly using a LIthium Ion
ba
Sorry about the "3 posts". They appeared to not be going through and I
kept re sending. It was like the duck with the hammer and the caption
says "hit any key to continue".
Larry Flesner
--
KRnet mailing list
KRnet@list.krnet.org
https://list.krnet.org/mailman/listinfo/krnet
By the way, Mark, I have the newer Great Plains 35 amp alternator. Not
that I needed it, but I dropped my magnet ring the last time I had the
engine apart, and cracked a magnet. The original 20 amp magnet rings
are no longer available.
Hi Mark. I am using an Odyssey Battery, in my KR. A battery t
uts itself
off, is not for me or my KR, electronic ignition or not .John Shaffer 455JS
-
From: "mark jones via KRnet"
To: "KRnet"
Cc: "mark jones"
Sent: Wednesday June 12 2024 9:14:12AM
Subject: KRnet> Lipo Battery
Yester
battery that shuts itself off, is not for me or my KR, electronic ignition or not .John Shaffer 455JS-From: "mark jones via KRnet" To: "KRnet"Cc: "mark jones"Sent: Wednesday June 12 2024 9:14:12AMSubject: KRnet> Lipo Bat
t: Wednesday June 12 2024 9:14:12AM
Subject: KRnet> Lipo Battery
Yesterday I was doing a taxi test and had the following happen more
than once. This scares me enough that I am now very hesitant to use a
Lipo with BMS. After about five minutes of taxi, my engine shut off as
if the ignition sw
On 6/12/2024 8:36 AM, Larry Flesner via KRnet wrote:
I'm by no means an expert but does your "dynamo / alternator/
whatever" need to see battery voltage to have an output? If so and
the battery shuts off, poof !!
+
On 6/12/2024 8:13 AM, mark jones via KRnet wrote:
Only to again shut down after a few minutes of running. Why is this
happening? Is it due to the Dynamo? Why wouldn't my engine keep
running just off the Dynamo.
++
-Jeff Scott
Arkansas Ozarks
Sent: Wednesday, June 12, 2024 at 8:13 AM
From: "mark jones via KRnet"
To: "KRnet"
Cc: "mark jones"
Subject: KRnet> Lipo Battery
Yesterday I was doing a taxi test and had the following happen more than once. This scares me enoug
Yesterday I was doing a taxi test and had the following happen more than
once. This scares me enough that I am now very hesitant to use a Lipo with
BMS.
After about five minutes of taxi, my engine shut off as if the ignition
switch had been shut off. There was absolutely no power at the ignition
sw
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