Today's Message Index:
----------------------
0. 09:50 AM - Just A Few Days Left... (Matt Dralle)
1. 03:48 AM - Re: EarthX Battery Tester (zwakie)
2. 06:39 AM - Stall warning through Radio (John M Tipton)
3. 07:11 AM - Re: Re: EarthX Battery Tester (ashleysc@broadstripe.net)
4. 07:22 AM - Re: Stall warning through Radio (user9253)
5. 07:45 AM - Re: Re: EarthX Battery Tester (Ken Ryan)
6. 07:57 AM - Re: EarthX Battery Tester (zwakie)
7. 07:59 AM - Re: EarthX Battery Tester (zwakie)
8. 10:59 AM - Re: Re: EarthX Battery Tester (Robert L. Nuckolls, III)
9. 11:15 AM - Re: Re: EarthX Battery Tester (Sebastien)
10. 01:39 PM - Re: EarthX Battery Tester (zwakie)
11. 03:29 PM - Re: Re: EarthX Battery Tester (Robert L. Nuckolls, III)
12. 04:59 PM - Alkaline battery holder for handheld radio (jdubner)
13. 05:44 PM - Re: B lead circuit breaker (Ron Burnett)
14. 08:24 PM - Changes in education field and technology (KennethAmpbell)
Message 0
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| Subject: | Just A Few Days Left... |
Dear Listers,
There are just a Two days left for this year's List Fund Raiser! If you've been
putting off making a Contribution until the last minute, well, this is it!
The last minute, that is... :-) There are some GREAT new gift selections to choose
from this year. I personally want at least three of them! There's probably
something you can't live without too! And, best of all it supports your
Lists!
Please remember that there isn't any sort of commercial advertising on the Lists
and the *only* means of keeping these Lists running is through your Contributions
during this Fund Raiser. Let's make this a "Black Friday" for the Lists!
Please make a Contribution today!
http://www.matronics.com/contribution
Or, drop a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
Thank you!
Matt Dralle
Matronics Email List Administrator
Message 1
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| Subject: | Re: EarthX Battery Tester |
Looking at the specs that "Lithium" model seems to be identical to the model I
have for my Odyssey 545 battery, it also uses the same charging/testing strategy.
Having a different model, my experience does not necessarily apply to this one,
but I'd like to share it anyway as I had a similar line of thinking when I bought
the thing couple of years ago:
Mine does a good job of maintaining the voltage level the battery is at and can
recover from small discharge levels, but not much more than that. Mine certainly
is not capable of recovering from deep discharges.
Given those 'limited' capabilities, I do a load charge test one year after bought
new (I do this in spring-time), and replace it with a new battery the next
year.
I want to have a high level of confidence that my battery is capable to deal with
a alternator-out situation and allows me to finish the flight as planned when
this happens. FYI: I have a single alternator - single battery setup and do
daytime VFR only)
--------
Marcel Zwakenberg
Europa XS TG || 912ULS || PH-SBR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485865#485865
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| Subject: | Stall warning through Radio |
Hi
What kind of input do I use to in-put a 'Stall Warning' sound through the radio
John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485866#485866
Message 3
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| Subject: | Re: EarthX Battery Tester |
Hi Marcel;
Hi All;
It is for that very reason that I have two (2) twenty amp, internally regulated,
permanent magnet alternators installed.
Cheers! Stu.
----- Original Message -----
From: "zwakie" <mz@cariama.nl>
Sent: Thursday, November 29, 2018 3:47:40 AM
Subject: AeroElectric-List: Re: EarthX Battery Tester
Looking at the specs that "Lithium" model seems to be identical to the model I
have for my Odyssey 545 battery, it also uses the same charging/testing strategy.
Having a different model, my experience does not necessarily apply to this one,
but I'd like to share it anyway as I had a similar line of thinking when I bought
the thing couple of years ago:
Mine does a good job of maintaining the voltage level the battery is at and can
recover from small discharge levels, but not much more than that. Mine certainly
is not capable of recovering from deep discharges.
Given those 'limited' capabilities, I do a load charge test one year after bought
new (I do this in spring-time), and replace it with a new battery the next
year.
I want to have a high level of confidence that my battery is capable to deal with
a alternator-out situation and allows me to finish the flight as planned when
this happens. FYI: I have a single alternator - single battery setup and do
daytime VFR only)
--------
Marcel Zwakenberg
Europa XS TG || 912ULS || PH-SBR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485865#485865
Message 4
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| Subject: | Re: Stall warning through Radio |
If all you have now is a stall warning vane and switch, then that switch needs
to turn on an audio oscillator which is then connected to an aux audio input on
the radio. Search eBay for Assembled Audio Oscillator
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485868#485868
Message 5
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| Subject: | Re: EarthX Battery Tester |
Marcel, what do you use for your "load" when you do the load test?
Ken
On Thu, Nov 29, 2018 at 2:52 AM zwakie <mz@cariama.nl> wrote:
>
> Looking at the specs that "Lithium" model seems to be identical to the
> model I have for my Odyssey 545 battery, it also uses the same
> charging/testing strategy.
>
> Having a different model, my experience does not necessarily apply to this
> one, but I'd like to share it anyway as I had a similar line of thinking
> when I bought the thing couple of years ago:
>
> Mine does a good job of maintaining the voltage level the battery is at
> and can recover from small discharge levels, but not much more than that.
> Mine certainly is not capable of recovering from deep discharges.
>
> Given those 'limited' capabilities, I do a load charge test one year after
> bought new (I do this in spring-time), and replace it with a new battery
> the next year.
>
> I want to have a high level of confidence that my battery is capable to
> deal with a alternator-out situation and allows me to finish the flight as
> planned when this happens. FYI: I have a single alternator - single battery
> setup and do daytime VFR only)
>
> --------
> Marcel Zwakenberg
> Europa XS TG || 912ULS || PH-SBR
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=485865#485865
>
>
Message 6
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| Subject: | Re: EarthX Battery Tester |
kenryan wrote:
> Marcel, what do you use for your "load" when you do the load test?
One of these: http://www.westmountainradio.com/product_info.php?products_id=cba4
--------
Marcel Zwakenberg
Europa XS TG || 912ULS || PH-SBR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485870#485870
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| Subject: | Re: EarthX Battery Tester |
ashleysc(at)broadstripe.n wrote:
> Hi Marcel;
> Hi All;
> It is for that very reason that I have two (2) twenty amp, internally regulated,
permanent magnet alternators installed.
> Cheers! Stu.
> ---
Yeah, I have that on my wishlist too for that same reason but it is lower than
what I am working on right now (upgrading panel to glass) as with the new panel
I can last over 2 hours on battery only according to load calculations and battery
specs ;)
--------
Marcel Zwakenberg
Europa XS TG || 912ULS || PH-SBR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485871#485871
Message 8
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| Subject: | Re: EarthX Battery Tester |
>
>Mine does a good job of maintaining the voltage level the battery is
>at and can recover from small discharge levels, but not much more
>than that. Mine certainly is not capable of recovering from deep discharges.
>
>Given those 'limited' capabilities, I do a load charge test one year
>after bought new (I do this in spring-time), and replace it with a
>new battery the next year.
>
>I want to have a high level of confidence that my battery is capable
>to deal with a alternator-out situation and allows me to finish the
>flight as planned when this happens. FYI: I have a single alternator
>- single battery setup and do daytime VFR only)
CAPACITY equates to ENDURANCE. This is what the
e-bus is for. You can periodically shut off
the master switch, close the alternate feed
switch and then time how long your battery
will support the e-bus loads.
Not sure what a 'load charge' test would be.
The classic load test at the lead-acid battery
factory is to place so much load on the battery
that its terminal voltage drops by 1/2. This
means that the resistance of the load is equal
to internal resistance of the battery. Typical
test currents can be well over 1000 amps.
This condition is held for x seconds whereupon
voltages and currents observed must exceed
some minimum value.
A capacity test looks at useful energy available
in chemical storage. The battery is loaded with
y amps (endurance value) and time down to 11 volts
(in lead acid world) is noted. This measurement
speaks to sustaining battery only flight conditions
and is only loosely related to results of any
variation on a load test.
Lithium internal resistance is so low that the
classic Ipp (peak power load test) is impractical.
Hence, tests for x seconds at z amps (cranking
currents) are practical. Capacity testing
remains unchanged.
Bob . . .
Message 9
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| Subject: | Re: EarthX Battery Tester |
Thank you Bob.
On Thu, Nov 29, 2018 at 11:07 AM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
>
> Mine does a good job of maintaining the voltage level the battery is at
> and can recover from small discharge levels, but not much more than that.
> Mine certainly is not capable of recovering from deep discharges.
>
> Given those 'limited' capabilities, I do a load charge test one year after
> bought new (I do this in spring-time), and replace it with a new battery
> the next year.
>
> I want to have a high level of confidence that my battery is capable to
> deal with a alternator-out situation and allows me to finish the flight as
> planned when this happens. FYI: I have a single alternator - single battery
> setup and do daytime VFR only)
>
>
> CAPACITY equates to ENDURANCE. This is what the
> e-bus is for. You can periodically shut off
> the master switch, close the alternate feed
> switch and then time how long your battery
> will support the e-bus loads.
>
> Not sure what a 'load charge' test would be.
> The classic load test at the lead-acid battery
> factory is to place so much load on the battery
> that its terminal voltage drops by 1/2. This
> means that the resistance of the load is equal
> to internal resistance of the battery. Typical
> test currents can be well over 1000 amps.
>
> This condition is held for x seconds whereupon
> voltages and currents observed must exceed
> some minimum value.
>
> A capacity test looks at useful energy available
> in chemical storage. The battery is loaded with
> y amps (endurance value) and time down to 11 volts
> (in lead acid world) is noted. This measurement
> speaks to sustaining battery only flight conditions
> and is only loosely related to results of any
> variation on a load test.
>
> Lithium internal resistance is so low that the
> classic Ipp (peak power load test) is impractical.
> Hence, tests for x seconds at z amps (cranking
> currents) are practical. Capacity testing
> remains unchanged.
>
>
> Bob . . .
>
Message 10
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| Subject: | Re: EarthX Battery Tester |
[quote="nuckolls.bob(at)aeroelect"]
> A capacity test looks at useful energy available in chemical storage. The battery
is loaded with y amps (endurance value) and time down to 11 volts (in lead
acid world) is noted.
Thanks for correcting me Bob, and apologies for carelessly writing down he wording
"load testing". I indeed meant to write "capacity testing", and the method
that you describe here is exactly what I do.
--------
Marcel Zwakenberg
Europa XS TG || 912ULS || PH-SBR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485955#485955
Message 11
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| Subject: | Re: EarthX Battery Tester |
>
>
>Thanks for correcting me Bob, and apologies for carelessly writing
>down he wording "load testing". I indeed meant to write "capacity
>testing", and the method that you describe here is exactly what I do.
No problem. We're ALL interested in
precise speech for it is a fundamental
foundation of understanding.
Bob . . .
Message 12
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| Subject: | Alkaline battery holder for handheld radio |
Thought I'd post about my surprising experience with alkaline battery holders for
my handheld radio. I have two of them and last week when I ran down the Li-ion
pack and needed them (after a panel-mount radio failure), both were dead!
Not just weak, but dead as a doornail. Both of them.
The radio is a Vertex Standard VXA-700 using the FBA-23 battery case for two "AA" cells. (It's my understanding this same battery case is used with the VX-5R, VX-6R, VX-7R, VX-6E, and other radios). http://store.batteriesamerica.com/FBA-23AlkalineBatteryCaseforYAESUVERTEXSTANDARDHORIZON.aspx
After landing I put two fresh cells into each and measured the voltage at the battery
case terminals. Good: 4.5 volts. Wait, what? How can that be? There
are only two AA cells.
It turns out that the FBA-23 battery case contains hidden circuitry (a boost converter?)
and places a small but constant drain on the batteries even when not
installed in the radio. I measured about 50 microamps on the bench.
So now my alkaline battery holders are kept without their alkaline cells installed.
The cells will last a lot longer in storage if I install them just before
use.
--
Joe
RV-8A
Independence, OR
--------
RV-8A
Independence, OR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485958#485958
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| Subject: | Re: B lead circuit breaker |
My new alternator arrived today and I was able to flight test it. The old P
P alternator produced 14.2 volts while now I see 14.5. They also blessed me
by sending the 70 amp while my return was the 60 amp. I feel that Allen at
Hartzell/Plane Power treated me very well.
Thanks to all.
Ron Burnett
May you have the Lord's blessings today!
Sent from my iPad
> On Nov 28, 2018, at 4:35 PM, Ron Burnett <ronburnett@charter.net> wrote:
>
> Here is the update on my Plane Power alternator. It was tested at PP and f
ailed internally not related to the voltage regulator. A new replacement wil
l arrive tomorrow under warranty.
>
> Thank all of you for your ideas and help during this process when the alte
rnator still operated but kept tripping the field, but would reset and opera
te normally.
>
> Ron Burnett RV-6A
> L 0360 dual EFII
>
> May you have the Lord's blessings today!
> Sent from my iPad
>
>> On Nov 25, 2018, at 8:28 PM, Robert L. Nuckolls, III <nuckolls.bob@aeroel
ectric.com> wrote:
>>
>>>
>>>
>>> All of this is to say that your voltage regulator may be the culprit not
the alternator.
>>
>> PlanePower uses the stock, INTERNAL votlage
>> regulator in their automotive->airplane
>> conversions. So in this case, the whole
>> alternator assembly needs to be returned
>> for evaluation.
>>
>> In this instance, it appears that the PlanePower
>> added, crowbar ov management system was doing its
>> job.
>>
>> Bob . . .
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| Subject: | Changes in education field and technology |
Education is not the same as in the olden days now. According to the technology
change the educational system is also in the path of change. Students now are
growing up in the technology era so that they think and act more intelligently
than the older generation. Smart classrooms and better education strategies
are really doing wonders in the next generation kids. Students now are also getting
help from online resources such as write my essay other than that of the
olden time which makes easy for them to manage their curriculum activities. Students
can also get educational tips and tricks such as how to succeed. Getting
help from experts actually is a better option to achieve success.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485960#485960
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