Today's Message Index:
----------------------
1. 03:19 AM - Re: Re: Footwell got burned! (Jared Yates)
2. 04:22 AM - Re: Battery Cap Tester (Ken)
3. 06:59 AM - Re: Re: Footwell got burned! (Robert L. Nuckolls, III)
4. 07:45 AM - Re: Battery Cap Tester (Robert L. Nuckolls, III)
5. 08:57 AM - Re: Battery Cap Tester (Ken Lehman)
6. 09:04 AM - Re: Battery Cap Tester (rparigor@suffolk.lib.ny.us)
Message 1
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Subject: | Re: Footwell got burned! |
I would try talking to Rayovac. I have had their D cells leak in a Maglite and
had the flashlight replaced through Maglite, who said that they had agreements
with Rayovac, Duracel, and Energizer. There may be some sort of guarantee from
them.
On Jul 12, 2013, at 0:15, "rparigoris" <rparigor@suffolk.lib.ny.us> wrote:
>
> Hi Bob
>
> I just got in from hangar.
>
> I washed the foot-well with white vinegar tonight to neutralize any base, then
washed with water. The vinegar did not discolor the high temperature Phenolic
resin. The foot-well is kinda porous, even after washing with water, alcohol
and acetone, can still smell a faint amount of vinegar
>
> I picked up the carcass, it wasn't a EverReady battery like I thought, it's a
6 volt Rayovac with an expiration of December 2017.
>
> Where would you like for me to send the carcass? You have sent me stuff in the
past to try out, shipping is on me this time around.
>
> Here's exactly what happened:
> I installed this battery in the lantern in December 2010 and stored it with the
lens facing up. The opposite side of lens of the lantern is water tight, so
it leaked and caused no damage to the lantern at all but collected in this watertight
side.
>
> While doing my inspection on the front of my Europa, I was picking up and putting
down the lantern, lens down several times. During those cycles the clear
liquid leaked past the threads of the lens and soaked my foot-well. Then I turned
the lantern off and put it lens up on the foot-well and noticed the liquid.
>
> Since the liquid was on components of the lantern for a very short time, and
I washed it off, no damage occurred.
>
> Ron Parigoris
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=404523#404523
>
>
>
>
>
>
>
>
>
>
Message 2
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Subject: | Re: Battery Cap Tester |
I believe HobbyKing sells a $20. ish dollar device that will integrate
whatever discharge you choose to put on the battery.
Ken
do not archive
On 11/07/2013 12:01 PM, jonlaury wrote:
>
> Bob,
> Last October, when I left my Pitot heater on overnight, my PC680 got pulled down
to 7.5v and I mentioned the event in another post. At that time, you said
you were building a batt cap tester to sell on the AEC.
>
> Is it about to launch?
>
> After charging, I've noticed that my PC680 drains from 13 to 11.6v over two weeks
of sitting. My car battery doesn't drain that much even with phantom loads
of the ECU, clock and anything else that I'm not aware of. So I was going to
fab a poorman's cap checker unless you've got something that will save me the
trouble.
>
> Thanks,
> John
>
Message 3
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Subject: | Re: Footwell got burned! |
At 11:15 PM 7/11/2013, you wrote:
><rparigor@suffolk.lib.ny.us>
>
>Hi Bob
>
>I just got in from hangar.
>
>I washed the foot-well with white vinegar tonight to neutralize any
>base, then washed with water. The vinegar did not discolor the high
>temperature Phenolic resin. The foot-well is kinda porous, even
>after washing with water, alcohol and acetone, can still smell a
>faint amount of vinegar
>
>I picked up the carcass, it wasn't a EverReady battery like I
>thought, it's a 6 volt Rayovac with an expiration of December 2017.
>
>Where would you like for me to send the carcass? You have sent me
>stuff in the past to try out, shipping is on me this time around.
Box 130, Medicine Lodge, KS 67104-0130
Double bag it in a freezer zip-lock so you
don't get the post office upset with us!
>Here's exactly what happened:
>I installed this battery in the lantern in December 2010 and stored
>it with the lens facing up. The opposite side of lens of the lantern
>is water tight, so it leaked and caused no damage to the lantern at
>all but collected in this watertight side.
>
>While doing my inspection on the front of my Europa, I was picking
>up and putting down the lantern, lens down several times. During
>those cycles the clear liquid leaked past the threads of the lens
>and soaked my foot-well. Then I turned the lantern off and put it
>lens up on the foot-well and noticed the liquid.
>
>Since the liquid was on components of the lantern for a very short
>time, and I washed it off, no damage occurred.
>
>Ron Parigoris
okay. so your event was pure leakage with
no evidence of heating? I guess I got your
posting merged with Eric's observation of
a 'hot flashlihgt'. Hmmmm . . . if no signs
of electrical energy release it seems we're
looking at a simple leakage event. I'm curious
about the liquidity of the effluent. The few
times I've had these cells open, the contents
were the consistency of peanut butter . . .
but that was a long time ago.
Let's hold off on shipping. You could
move forward with a claim against Ray-o-Vac.
Was this a spring-post, 6v lantern battery
or individual cells?
The spring-post batteries use an array of
"F" cells . . . same diameter as D but longer.
Since they're not sold as individual cells
they don't get the same kind of jacket around
them. Was this an alkaline or carbon-zinc
product?
Bob . . .
Message 4
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Subject: | Re: Battery Cap Tester |
At 11:01 AM 7/11/2013, you wrote:
>
>Bob,
>Last October, when I left my Pitot heater on overnight, my PC680 got
>pulled down to 7.5v and I mentioned the event in another post. At
>that time, you said you were building a batt cap tester to sell on the AEC.
>
>Is it about to launch?
>
>After charging, I've noticed that my PC680 drains from 13 to 11.6v
>over two weeks of sitting. My car battery doesn't drain that much
>even with phantom loads of the ECU, clock and anything else that I'm
>not aware of. So I was going to fab a poorman's cap checker unless
>you've got something that will save me the trouble.
Hi John,
Funny you should mention that. I've been on an archeological
dig on the workbench and uncovered a nicely fabricated
po' boy's cap checker sent to me for troubleshooting.
It was receipt of that project that launched the software
based timer/cap-checker project. Paul got the software up
to a beta release state. It goes on the same ECB as the
uC based wig-wag controller. I need to stuff a board,
program a chip and see if it all comes together.
Sounds like you're needs are pretty immediate. Just the
pitot heater? Sounds like the the master was left on
and more 'stuff' than pitot heater was loading the
battery. In any case, an over-night load of that magnitude
certainly extracted 99%+ of the battery's contained energy.
How old was the battery when this event occured?
What are you using to charge the battery? Is it a smart
charger with a bulk/top-off/sustain profile?
This accelerated self-discharge doesn't sound good
but it MIGHT be that your charger isn't topping
the battery off. Does it still crank the engine?
Have you conducted a cranking load test (how many
amps delivered after 15 seconds loaded down to
9 volts)?
If it's still cranking the engine, then the battery
should top off in flight with a bus of 14.4 to 14.6
volts. But if the OCV drops that fast, then it's
almost a certainty that the battery is crippled.
I've moved the po' boy's battery cap checker to
the front of the bench but its going to be awhile
before it's in a practical state of utility for
you. If you're flying this battery, you need some
faster data. Clip a 55w head-lamp bulb across the
battery and come back in 2 hours to check the
voltage.
http://tinyurl.com/kgkxw3l
If it's not at 11.0 volts or above, the battery
is toast.
Another reader suggested this battery test fixture
from Hobby King . . .
http://tinyurl.com/q2sv4xl
It's designed to test an array of li-ion cells in
a model . . . not well suited to your task and is
certainly not outfitted to load your battery in
concert with your endurance loads. Further, reviews
of this device are in the toilet.
Bob . . .
Message 5
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Subject: | Re: Battery Cap Tester |
this is the hobbyking item I was thinking of.
Up to 60 volts and 130 amps.
http://www.hobbyking.com/hobbyking/store/__10080__turnigy_130a_watt_meter_and_power_analyzer.html
Ken
do not archive
<nuckolls.bob@aeroelectric.com>
>
> At 11:01 AM 7/11/2013, you wrote:
<jonlaury@impulse.net>
> >
> >Bob,
> >Last October, when I left my Pitot heater on overnight, my PC680 got
> >pulled down to 7.5v and I mentioned the event in another post. At
> >that time, you said you were building a batt cap tester to sell on
the AEC.
> >
> >Is it about to launch?
> >
> >After charging, I've noticed that my PC680 drains from 13 to 11.6v
> >over two weeks of sitting. My car battery doesn't drain that much
> >even with phantom loads of the ECU, clock and anything else that I'm
> >not aware of. So I was going to fab a poorman's cap checker unless
> >you've got something that will save me the trouble.
>
> Hi John,
>
> Funny you should mention that. I've been on an archeological
> dig on the workbench and uncovered a nicely fabricated
> po' boy's cap checker sent to me for troubleshooting.
> It was receipt of that project that launched the software
> based timer/cap-checker project. Paul got the software up
> to a beta release state. It goes on the same ECB as the
> uC based wig-wag controller. I need to stuff a board,
> program a chip and see if it all comes together.
>
> Sounds like you're needs are pretty immediate. Just the
> pitot heater? Sounds like the the master was left on
> and more 'stuff' than pitot heater was loading the
> battery. In any case, an over-night load of that magnitude
> certainly extracted 99%+ of the battery's contained energy.
>
> How old was the battery when this event occured?
>
> What are you using to charge the battery? Is it a smart
> charger with a bulk/top-off/sustain profile?
>
> This accelerated self-discharge doesn't sound good
> but it MIGHT be that your charger isn't topping
> the battery off. Does it still crank the engine?
> Have you conducted a cranking load test (how many
> amps delivered after 15 seconds loaded down to
> 9 volts)?
>
> If it's still cranking the engine, then the battery
> should top off in flight with a bus of 14.4 to 14.6
> volts. But if the OCV drops that fast, then it's
> almost a certainty that the battery is crippled.
>
> I've moved the po' boy's battery cap checker to
> the front of the bench but its going to be awhile
> before it's in a practical state of utility for
> you. If you're flying this battery, you need some
> faster data. Clip a 55w head-lamp bulb across the
> battery and come back in 2 hours to check the
> voltage.
>
> http://tinyurl.com/kgkxw3l
>
> If it's not at 11.0 volts or above, the battery
> is toast.
>
> Another reader suggested this battery test fixture
> from Hobby King . . .
>
> http://tinyurl.com/q2sv4xl
>
> It's designed to test an array of li-ion cells in
> a model . . . not well suited to your task and is
> certainly not outfitted to load your battery in
> concert with your endurance loads. Further, reviews
> of this device are in the toilet.
>
>
>
> Bob . . .
>
>
Message 6
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Subject: | Re: Battery Cap Tester |
Hi Group
Here's one slick tool that no home should be without:
http://www.hobbyking.com/hobbyking/store/__10080__Turnigy_130A_Watt_Meter_and_Power_Analyzer.html
You can keep it alive with an aux battery if required. I use a 4 AA
holder from Rat Shack that has a built in switch.
You can data log watts in or out. I have used it to charge and measure
capacity of batteries ranging from a 50mA NiMh to 4 in series 200 amp
lead acid deep discharge.
The above is OK quality, but not as nice as Astroflight Whatt Meters:
http://www.astroflight.com/electronics/watt-meters.html
It's whatt, not watt meter.
Hobby King thus far has been OK to deal with. If they show 0 in stock,
you have to wait before they will ship until they do another run.
That's the way they operate, they get orders, then build. You can go
on their site and put something on a wishlist, then when they make a
production run you will get an E-Mail they have stock. Shipping, their
cheap kind is cheap, but slow (OK by me most of the time). I think they
offer other modes of shipping.
Or buy a Whattmeter, they ship from USA, probably same day for a little
more than double the price.
The only difference I find, is the Whatt meter is not a directional tool,
run a load from a battery through the meter it will begin to accumulate
watts, now begin to charge through the meter and it will accumulate watts
the same. The Turnigy will only log in one direction. I tend to like the
quirk of the Whatt meter.
Ron Parigoris
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