Today's Message Index:
----------------------
1. 04:32 AM - Desulfinating trickle charger with Garmin avionics (whodja)
2. 06:32 AM - Re: food machinery (Robert L. Nuckolls, III)
3. 06:43 AM - Re: Soldering to a Solid Wire (Robert L. Nuckolls, III)
4. 07:01 AM - Re: Soldering to a Solid Wire (Sebastien)
5. 08:50 AM - Re: Desulfinating trickle charger with Garmin avionics (Dick Gurley)
6. 10:07 AM - Re: Desulfinating trickle charger with Garmin avionics (James kale)
7. 11:29 AM - Re: Desulfinating trickle charger with Garmin avionics (Henador Titzoff)
8. 02:18 PM - Pmag diode (eschlanser)
9. 03:51 PM - Re: Desulfinating trickle charger with Garmin avionics (Robert L. Nuckolls, III)
10. 03:54 PM - Re: Pmag diode (Robert L. Nuckolls, III)
Message 1
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| Subject: | Desulfinating trickle charger with Garmin avionics |
I use an Odyssey battery charger for my PC680 to maintain the battery. Occasionally
I turn on the Garmin avionics while the charger is connected. I recently
heard that the desulfurization circuitry is bad for an internal fuse in the avionics.
Does anyone know about this?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=491877#491877
Message 2
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| Subject: | Re: food machinery |
At 07:11 AM 10/19/2019, you wrote:
>
>What is food machinery ?
spam . . . ignore
Bob . . .
Message 3
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| Subject: | Re: Soldering to a Solid Wire |
At 11:52 AM 10/19/2019, you wrote:
>I replaced my mechanical tach with a digital one last week and
>needed to connect some very small wires that came with the new tach
>to a couple resistors. Decided to solder rather than crimp because
>of how small the wires are. It was only halfway through that I
>realized I should have asked around to see if there is a proper way
>of doing this. I didn't find anything in the AEC or 43-13.
>
>Is this good?
I would cover the resistors and their
exposed lead wires with heat shrink
before crimping the terminals on.
Bob . . .
Message 4
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| Subject: | Re: Soldering to a Solid Wire |
Well yes, but only if you think of it before crimping the terminal on :).
Fortunately I have heatshrink that's just the right size to fit over those
terminals. I wish I had used clear heatshrink though so I could see what it
looked like once everything was bent and attached in position.
Sure is nice not having that clunky tach drive going from the engine to the
panel anymore.
On Sun, Oct 20, 2019, 09:47 Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 11:52 AM 10/19/2019, you wrote:
>
> I replaced my mechanical tach with a digital one last week and needed to
> connect some very small wires that came with the new tach to a couple
> resistors. Decided to solder rather than crimp because of how small the
> wires are. It was only halfway through that I realized I should have asked
> around to see if there is a proper way of doing this. I didn't find
> anything in the AEC or 43-13.
>
> Is this good?
>
>
> I would cover the resistors and their
> exposed lead wires with heat shrink
> before crimping the terminals on.
>
>
> Bob . . .
>
Message 5
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| Subject: | Re: Desulfinating trickle charger with Garmin avionics |
Sent from my iPhone
> On Oct 20, 2019, at 7:31 AM, whodja <whodja@gmail.com> wrote:
>
>
> I use an Odyssey battery charger for my PC680 to maintain the battery. Occasionally
I turn on the Garmin avionics while the charger is connected. I recently
heard that the desulfurization circuitry is bad for an internal fuse in the
avionics. Does anyone know about this?
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=491877#491877
>
>
>
>
>
>
>
>
>
Message 6
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| Subject: | Desulfinating trickle charger with Garmin avionics |
Most desulfurization circuits send an occasional high voltage spike down the
charger leads. This only lasts for a few milliseconds. However, the high
voltage spike could lead to a couple of milliseconds of high current. This
should not damage most fuse/circuit breakers, however, there might be some
out there that could be damaged.
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
<owner-aeroelectric-list-server@matronics.com> On Behalf Of whodja
Sent: Sunday, October 20, 2019 6:32 AM
Subject: AeroElectric-List: Desulfinating trickle charger with Garmin
avionics
I use an Odyssey battery charger for my PC680 to maintain the battery.
Occasionally I turn on the Garmin avionics while the charger is connected. I
recently heard that the desulfurization circuitry is bad for an internal
fuse in the avionics. Does anyone know about this?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=491877#491877
Message 7
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| Subject: | Re: Desulfinating trickle charger with Garmin avionics |
The high voltage spike to desulfurize doesn't have to produce high current
to damage something.=C2- Transistors, for example are two conductors sand
wiching an insulator that is modulated by a control voltage to control the
current between the two conductors.=C2- If a high voltage spike comes in
on the power supply, it leads to one of the conductors and can cause punch
through, meaning that it can chip away at it until only a percentage of it
left.=C2- That causes the transistor to no function according to its spec
ifications and can lead to either a complete failure or partial failure.=C2
- It is these partial failures that cause anomalies in circuits that are
hard to troubleshoot.
Think of these two conductors and the sandwiched insulator as a PNP or NPN.
=C2- Even a diode can get chipped away or totally blown away.=C2- Capac
itors also have dielectrics that can be damaged.=C2- There are all sorts
of anomaly producers in a typical circuit board.
This is one reason why I don't really like the fancy battery chargers.=C2
- I'd rather keep my batteries topped off frequently to avoid sulfurizati
on.=C2- And of course I don't have that problem in my vehicles, because t
hat dumb regulator does a great job of topping off the battery that never r
eally goes below 90%.
Henador Titzoff
On Sunday, October 20, 2019, 01:27:50 PM EDT, James kale <jimkale@roadr
unner.com> wrote:
com>
Most desulfurization circuits send an occasional high voltage spike down th
e
charger leads.=C2- This only lasts for a few milliseconds.=C2- However,
the high
voltage spike could lead to a couple of milliseconds of high current.=C2-
This
should not damage most fuse/circuit breakers, however, there might be some
out there that could be damaged.
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
<owner-aeroelectric-list-server@matronics.com> On Behalf Of whodja
Sent: Sunday, October 20, 2019 6:32 AM
Subject: AeroElectric-List: Desulfinating trickle charger with Garmin
avionics
I use an Odyssey battery charger for my PC680 to maintain the battery.
Occasionally I turn on the Garmin avionics while the charger is connected.
I
recently heard that the desulfurization circuitry is bad for an internal
fuse in the avionics. Does anyone know about this?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=491877#491877
-
S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
Message 8
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Whats a good way to attach a diode to the Pmag connector? The diode has small solid
wires that go to screw down sockets #1 and 6 that also get one 18-20 ga stranded
wire in each socket .
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=491886#491886
Attachments:
http://forums.matronics.com//files/285ba7c0_e9c5_4c33_8d79_79b2a09170fd_149.png
http://forums.matronics.com//files/6f8614c3_9404_46e5_860f_dcd028abed24_119.png
Message 9
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| Subject: | Desulfinating trickle charger with Garmin avionics |
At 12:05 PM 10/20/2019, you wrote:
>
>Most desulfurization circuits send an occasional high voltage spike down the
>charger leads. This only lasts for a few milliseconds. However, the high
>voltage spike could lead to a couple of milliseconds of high current. This
>should not damage most fuse/circuit breakers, however, there might be some
>out there that could be damaged.
There are no known techniques for 'breaking
up' hard sulfate crystals or recovering a
battery that has succumbed to inevitable
end-of-life conditions whether by accident,
poor maintenance or time in service.
Claims to the contrary describe a constellation
of electrical stimuli with carefully defined
physics. The problem is that every patented
desulfation technique has some feature that
sets it apart from all others else it could
not be patented.
I've likened searches for the ultimate
desulfation device to be as productive
as walking into a health supplements
store with 10,000 products seeking
the ultimate mitigation of your particular
discomfort. The proprietor cannot
tell you that any one thing or combination
of things will "fix you right up".
That would be practicing medicine.
What they can do is point you to a book about
the size of a NY phone book that offers
a one-stop source for claims proffered
by every product on their shelves, "here,
check it out . . . we got them all!"
I've done a site search on 'sulfate' for
https://batteryuniversity.com/search/search&keywords=sulfate/P10
Here we are offered 14 articles (out of hundreds
on the site) that speak to lead sulfate. There
is one article . . .
https://batteryuniversity.com/learn/article/additives
that speaks to chemical additives that may recover
some battery performance . . . but it only
works on flooded batteries and is of limited
benefit . . . for our purposes it would not
make an un-airworthy battery flyable.
There are NO articles that speak to recovering
significant capacity in a battery that has
suffered an infestation of hard lead-sulfate
crystals.
The ENERGY produced by so-called desulfation
pulses is tiny. They pose no risk to any
hardware on the airplane that might still
be connected to a battery that you're
trying to recover with the magic battery
charger.
By the way, after a series of discharge/
recharge tests with sequential cap-checks
on a Battery Minder Plus followed by
a 4 month maintenance interval, I find
ZERO improvement in battery performance.
In fact, the test article's 9-volt/15-second
load test value DROPPED from 150A down to
60A.
I would not have expected jaw dropping
recovery . . . but some degree of improvement
would have been tentatively validating
of the manufacturer's claims.
After more than a decade of observation
of and association with the lead-acid battery
market, I'm calling the whole desulfation
thingy 'snake oil'.
If anyone discovers a product backed up
with a report of laboratory/field controlled
experiments that demonstrate the product's
efficacy, I'll be most pleased to eat
my words.
Bob . . .
Message 10
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At 04:17 PM 10/20/2019, you wrote:
<eschlanser@yahoo.com>
>
>What=99s a good way to attach a diode to the
>Pmag connector? The diode has small solid wires
>that go to screw down sockets #1 and 6 that also
>get one 18-20 ga stranded wire in each socket .
Does your tach REQUIRE this diode?
Bob . . .
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