AeroElectric-List Digest Archive

Wed 10/29/08


Total Messages Posted: 18



Today's Message Index:
----------------------
 
     1. 02:42 AM - Re: Off topic - 737 runs out of battery power  ()
     2. 04:30 AM - Re: Re: Duracell Leaking Batteries (Robert L. Nuckolls, III)
     3. 04:41 AM - Re: Re: Duracell Leaking Batteries (JOHN TIPTON)
     4. 06:26 AM - Re: Duracell Leaking Batteries (N395V)
     5. 06:30 AM - Re: Durocell Leaking Batteries (N395V)
     6. 07:23 AM - Re: Re: Duracell Leaking Batteries (Christopher Stone)
     7. 08:03 AM - Re: Duracell Leaking Batteries (Eric M. Jones)
     8. 08:51 AM - Re: Duracell Leaking Batteries (N395V)
     9. 09:10 AM - Re: Dynon EFIS & EMS power on the main bus (Gig Giacona)
    10. 09:18 AM - Re: Re: Duracell Leaking Batteries (Robert L. Nuckolls, III)
    11. 10:27 AM - Re: Dynon EFIS & EMS power on the main bus (DaveG601XL)
    12. 11:35 AM - Re: Re: Duracell Leaking Batteries (BobsV35B@aol.com)
    13. 12:52 PM - Re: Re: Duracell Leaking Batteries (J. Mcculley)
    14. 01:14 PM - Re: Dynon EFIS & EMS power on the main bus ()
    15. 07:06 PM - Re: Re: Duracell Leaking Batteries (Robert McCallum)
    16. 07:16 PM - Re: Re: Duracell Leaking Batteries (Robert McCallum)
    17. 07:31 PM - Re: Duracell Leaking Batteries (N395V)
    18. 07:54 PM - Re: Re: Duracell Leaking Batteries (Bruce Gray)
 
 
 


Message 1


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    Time: 02:42:03 AM PST US
    From: <gmcjetpilot@yahoo.com>
    Subject: Re: Off topic - 737 runs out of battery power
    >From: BobsV35B@aol.com >Good Morning Mr Jet Pilot, >For What It Is Worth, the aircraft in question was a Boeing 757, not a 737. Thanks, as I said you can turn the battery chargers off on all Boeing jets. I don't know the specifics of the case because I did not look it up, sorry, but from the description this is one of those gotchas. >From: Peter Hudes <phudes@ix.netcom.com> >Is this a new variant? I didn't know Boeing made a 757-400. >Pete Hudes They don't. It was a typo, 747-400. Sorry my bad; I taught it from 1989-1993. Haven't been in one since. This model did have an inadvertent battery charger shut down as I mentioned. It's just not something that's suppose to happen, if the crew is paying attention, but stuff does happen.


    Message 2


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    Time: 04:30:22 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@cox.net>
    Subject: Re: Duracell Leaking Batteries
    At 10:08 PM 10/28/2008 -0400, you wrote: >My cheap boss bought a jumbo pack of Radio Shack Gold AA's. I loaded up my >brand new Dymo thermal label maker with 6 of them a week ago and used it a >little. Today, went to make a label and it was completely dead. Opened it >up and every single one of them had oozed slime in my new printer. Cleaned >up good with a toothbrush and some contact cleaner. Went and bought some >USA mad Energiser Brand. We will see how that works out. >Where are Duracells made, USA or China? I've not had anyone's alkaline batteries leak on me in many years including Duracells. That's not to argue with anyone's experiences . . . only to add a data point. I'm not sure exactly what happens with chemistry internal to the cell but I seem to recall the evil stuff inside doesn't need to get out until the cell is depleted. This is why virtually every manufacturer recommends removal of cells when the device is store for long periods of time. We use a goodly number of cells per year and our time in the appliance is pretty short. I.e., cells with expiration dates way out in the future don't set around long in the appliance. I'll keep some used cells around next time I change them out . . . deplete them totally and see if they leak at some later time. In the mean time, Duracell offers to repair or replace a damaged appliance in their sales literature at: http://www.duracell.com/procell/about/care.asp Now it may be that they could claim no fault if somehow their analysis says the cell was left installed long after it was depleted. I.e., flash lights, radios, etc inadvertently left on or perhaps the auto off feature isn't working, etc. Bob . . .


    Message 3


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    Time: 04:41:30 AM PST US
    From: "JOHN TIPTON" <jmtipton@btopenworld.com>
    Subject: Re: Duracell Leaking Batteries
    What should one use to neutralize the 'leaked' gel/deposits John ----- Original Message ----- From: "Robert L. Nuckolls, III" <nuckolls.bob@cox.net> Sent: Wednesday, October 29, 2008 11:26 AM Subject: Re: AeroElectric-List: Re: Duracell Leaking Batteries > <nuckolls.bob@cox.net> > > At 10:08 PM 10/28/2008 -0400, you wrote: >>My cheap boss bought a jumbo pack of Radio Shack Gold AA's. I loaded up my >>brand new Dymo thermal label maker with 6 of them a week ago and used it a >>little. Today, went to make a label and it was completely dead. Opened it >>up and every single one of them had oozed slime in my new printer. Cleaned >>up good with a toothbrush and some contact cleaner. Went and bought some >>USA mad Energiser Brand. We will see how that works out. >>Where are Duracells made, USA or China? > > I've not had anyone's alkaline batteries leak on > me in many years including Duracells. That's not > to argue with anyone's experiences . . . only to > add a data point. I'm not sure exactly what happens > with chemistry internal to the cell but I seem to > recall the evil stuff inside doesn't need to get > out until the cell is depleted. This is why virtually > every manufacturer recommends removal of cells > when the device is store for long periods of time. > > We use a goodly number of cells per year and our > time in the appliance is pretty short. I.e., cells > with expiration dates way out in the future don't > set around long in the appliance. I'll keep some > used cells around next time I change them out . . . > deplete them totally and see if they leak at some > later time. > > In the mean time, Duracell offers to repair or > replace a damaged appliance in their sales literature > at: > > http://www.duracell.com/procell/about/care.asp > > Now it may be that they could claim no fault if > somehow their analysis says the cell was left > installed long after it was depleted. I.e., flash > lights, radios, etc inadvertently left on or > perhaps the auto off feature isn't working, etc. > > Bob . . . > > >


    Message 4


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    Time: 06:26:17 AM PST US
    Subject: Re: Duracell Leaking Batteries
    From: "N395V" <Bearcat@bearcataviation.com>
    Duracells are manufactured in Lancaster SC and Cleveland Tennessee. The Goo is comprised of Sodium Hydroxide, Manganese dioxide, Mercury and a secret Brew inside a steel can. They will usually not leak until the Manganese dioxide shell is depleted then the steel can is oxidized by th "goo" Duracell will replace any item that is damaged by a leaking battery. For low dollar items it is no questions asked, for a big ticket item they will probably want to see the battery to make sure it isn't 20 years old. Best thing to clean with is vinegar rinse with water. -------- Milt 2003 F1 Rocket 2006 Radial Rocket Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210950#210950


    Message 5


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    Time: 06:30:45 AM PST US
    Subject: Re: Durocell Leaking Batteries
    From: "N395V" <Bearcat@bearcataviation.com>
    > Might they relabeling Rayovac's. What is > different with these batteries selling now? > jerb > I do not know if they still do but Duracell used to make the Ray o Vac alkaline batteries. Ran them down the same assembly line just put a different cover on them. If you are buying them in bulk from Costco you might want to check the dates they could be really old. -------- Milt 2003 F1 Rocket 2006 Radial Rocket Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210952#210952


    Message 6


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    Time: 07:23:36 AM PST US
    From: Christopher Stone <rv8iator@earthlink.net>
    Subject: Re: Duracell Leaking Batteries
    John... Sodium bicarbonate (baking soda)works well for acids. Make a paste by mixing with water. Apply to the area to be cleaned. If there is acid present you will see the paste fizz on contact with the acid. Rinse with water and dry with air or alcohol. Chris -----Original Message----- >From: JOHN TIPTON <jmtipton@btopenworld.com> >Sent: Oct 29, 2008 7:38 AM >To: aeroelectric-list@matronics.com >Subject: Re: AeroElectric-List: Re: Duracell Leaking Batteries > > >What should one use to neutralize the 'leaked' gel/deposits > >John > > >----- Original Message ----- >From: "Robert L. Nuckolls, III" <nuckolls.bob@cox.net> >To: <aeroelectric-list@matronics.com> >Sent: Wednesday, October 29, 2008 11:26 AM >Subject: Re: AeroElectric-List: Re: Duracell Leaking Batteries > > >> <nuckolls.bob@cox.net> >> >> At 10:08 PM 10/28/2008 -0400, you wrote: >>>My cheap boss bought a jumbo pack of Radio Shack Gold AA's. I loaded up my >>>brand new Dymo thermal label maker with 6 of them a week ago and used it a >>>little. Today, went to make a label and it was completely dead. Opened it >>>up and every single one of them had oozed slime in my new printer. Cleaned >>>up good with a toothbrush and some contact cleaner. Went and bought some >>>USA mad Energiser Brand. We will see how that works out. >>>Where are Duracells made, USA or China? >> >> I've not had anyone's alkaline batteries leak on >> me in many years including Duracells. That's not >> to argue with anyone's experiences . . . only to >> add a data point. I'm not sure exactly what happens >> with chemistry internal to the cell but I seem to >> recall the evil stuff inside doesn't need to get >> out until the cell is depleted. This is why virtually >> every manufacturer recommends removal of cells >> when the device is store for long periods of time. >> >> We use a goodly number of cells per year and our >> time in the appliance is pretty short. I.e., cells >> with expiration dates way out in the future don't >> set around long in the appliance. I'll keep some >> used cells around next time I change them out . . . >> deplete them totally and see if they leak at some >> later time. >> >> In the mean time, Duracell offers to repair or >> replace a damaged appliance in their sales literature >> at: >> >> http://www.duracell.com/procell/about/care.asp >> >> Now it may be that they could claim no fault if >> somehow their analysis says the cell was left >> installed long after it was depleted. I.e., flash >> lights, radios, etc inadvertently left on or >> perhaps the auto off feature isn't working, etc. >> >> Bob . . . >> >> >> >> >> > >


    Message 7


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    Time: 08:03:11 AM PST US
    Subject: Re: Duracell Leaking Batteries
    From: "Eric M. Jones" <emjones@charter.net>
    Battery story--I posted some years ago my tale of using a 12V lantern battery drycell to power my Telex intercom. When I rented airplanes I would use it, since the small battery that came with the Telex was always going flat and the Cessnae I rented often had no cigar-lighter power. The first big lantern battery died in just a couple hours. I assumed it had been used and returned to the store by a dishonest customer....But the replacement battery was SMOKING when I landed and was so hot I had to remove it from my flight bag by its attachment wires. I put in on the asphalt and it left a melted mark. How close to a disaster I was, I shall never know. I assumed the internal cells had crushed from the change in altitude, but I left it in a metal trash can and never had it dissected. "The problem with the world is that only the intelligent people want to be smarter, and only the good people want to improve." - Eolake Stobblehouse -------- Eric M. Jones www.PerihelionDesign.com 113 Brentwood Drive Southbridge, MA 01550 (508) 764-2072 emjones@charter.net Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210966#210966


    Message 8


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    Time: 08:51:09 AM PST US
    Subject: Re: Duracell Leaking Batteries
    From: "N395V" <Bearcat@bearcataviation.com>
    rv8iator wrote: > John... > > Sodium bicarbonate (baking soda)works well for acids. Make a paste by mixing with water. Apply to the area to be cleaned. If there is acid present you will see the paste fizz on contact with the acid. Rinse with water and dry with air or alcohol. > > Chris > > -- Alkaline batteries (Duracells) are a base (same as baking soda) only much stronger. As such a weak acid ie vinegar or lemon juice should be used for cleaning/neutralizing. -------- Milt 2003 F1 Rocket 2006 Radial Rocket Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210973#210973


    Message 9


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    Time: 09:10:45 AM PST US
    Subject: Re: Dynon EFIS & EMS power on the main bus
    From: "Gig Giacona" <wrgiacona@gmail.com>
    jeffrey_davidson(at)earth wrote: > > Thanks for any light you can shed on this. Next time, I'll move the fuel selector from the Off position! > > Jeff Davidson (still an electrical newbie) > CH601-HD w/Jabiru3300A I'm not going to address the whole avionics master switch issue. What concerns me is what sounds like a limited life on the Dynon internal battery. I've heard stories of people getting them, taking them out of the box or testing them during the building process and then not turning them off properly and when the plane's power is disconnected they think there is a power outage and just drain the internal battery. -------- W.R. &quot;Gig&quot; Giacona 601XL Under Construction See my progress at www.peoamerica.net/N601WR Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210980#210980


    Message 10


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    Time: 09:18:55 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@cox.net>
    Subject: Re: Duracell Leaking Batteries
    At 08:00 AM 10/29/2008 -0700, you wrote: > >Battery story--I posted some years ago my tale of using a 12V lantern >battery drycell to power my Telex intercom. When I rented airplanes I >would use it, since the small battery that came with the Telex was always >going flat and the Cessnae I rented often had no cigar-lighter power. > >The first big lantern battery died in just a couple hours. I assumed it >had been used and returned to the store by a dishonest customer....But the >replacement battery was SMOKING when I landed and was so hot I had to >remove it from my flight bag by its attachment wires. I put in on the >asphalt and it left a melted mark. How close to a disaster I was, I shall >never know. > >I assumed the internal cells had crushed from the change in altitude, but >I left it in a metal trash can and never had it dissected. Interesting hypothesis. I have a small altitude chamber that fits into my temperature chamber to do temperature/altitude combination stress on small articles. Next time we get it out and set up, I'll do some bashing on AA and F-cells to see if I can precipitate a failure. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ----------------------------------------


    Message 11


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    Time: 10:27:21 AM PST US
    Subject: Re: Dynon EFIS & EMS power on the main bus
    From: "DaveG601XL" <david.m.gallagher@ge.com>
    Yeah, I wonder if your Dynon battery was fully charged prior to this exercise. On a typical Jabiru start with a charged main battery, my Dynon D180 does not even see low enough main voltage to go on the internal battery. This is mainly due to the rapidity with which the Jabiru normally starts. Now that it is cold, and I did not richen up my idle mixture screw, it took me about 6 cranks to get started the other day. Towards the end, my Dynon told me that it was going on internal battery during the cranks. Even without an internal battery, Dynon emphatically says that it is no problem to have it hooked live to the main bus during cranking. Good luck, -------- David Gallagher 601 XL/Jabiru 3300 First flight 7/24/08 Phase I flight test complete 10/16/08 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210999#210999


    Message 12


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    Time: 11:35:19 AM PST US
    From: BobsV35B@aol.com
    Subject: Re: Duracell Leaking Batteries
    Good Afternoon Bob, Just as a datapoint, I had a D sized DuraCell leak in a four cell Mag Lite. I sent the unit to the company as directed by their website. They sent me a check which covered the price of a new four cell MagLite and my shipping expenses. I would still like it better if the cells never leaked, but the warranty was honored. I do not have any idea whether or not the battery was beyond it's 'use before' date as it was stuck so hard in the flashlight, that I couldn't get it out! Happy Skies Old Bob AKA Bob Siegfried Ancient Aviator 628 West 86th Street Downers Grove, IL 60516 630 985-8502 Stearman N3977A Brookeridge Air Park LL22 In a message dated 10/29/2008 6:32:37 A.M. Central Daylight Time, nuckolls.bob@cox.net writes: Now it may be that they could claim no fault if somehow their analysis says the cell was left installed long after it was depleted. I.e., flash lights, radios, etc inadvertently left on or perhaps the auto off feature isn't working, etc. Bob . . . **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! (http://travel.aol.com/discount-travel?ncid=emlcntustrav00000001)


    Message 13


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    Time: 12:52:34 PM PST US
    From: "J. Mcculley" <mcculleyja@starpower.net>
    Subject: Re: Duracell Leaking Batteries
    FWIW, today I found one unused Duracell MN1300 battery within a package of 12(with a "Guaranteed fresh through 2008" label) was leaking and showed 0.1 volt open circuit. The remaining other two in the package were clean and measured an open circuit voltage of 1.515. These are marked as manufactured in USA in 2001, Bethel, CT 06801. The Guarantee on the package says "Should any device be damaged due to a battery defect, we will repair or replace it if sent with the batteries, postage paid to Duracell Consumer Dept" followed by the address in Bethel, CT. Five years ago, I complied with the ACK Technologies Inc. Model E-01 ELT product warranty statement that use of any other batteries than DURACELL would VOID the WARRANTY and be in VIOLATION of the requirements of TSO-91a OR FAR 91.52. On the first annual inspection thereafter there were two of the Duracells with significant leakage that had severly corroded the electrical contacts in the unit. These batteries were only one year into their multi-year life as printed on the batteries. ALL of the batteries in the ELT still measured above 1.5 volts open circuit and the ELT produced normal signal strength during the short-test performance check prior to finding the corrosion/leakage. It appears that leakage/corrosion of DURACELLS can happen while never being removed from their original package during their Guaranteed-Fresh- Dated-Life, as well as when they are installed fresh from manufacture, in a device that essentially places no load on them throughout less than a year, after which they are still capable of the same "like-new" performance as the other cells in the same installation which did NOT leak. Jim McCulley =========================================================================================== Robert L. Nuckolls, III wrote: > <nuckolls.bob@cox.net> > > At 10:08 PM 10/28/2008 -0400, you wrote: > >> My cheap boss bought a jumbo pack of Radio Shack Gold AA's. I loaded >> up my brand new Dymo thermal label maker with 6 of them a week ago and >> used it a little. Today, went to make a label and it was completely >> dead. Opened it up and every single one of them had oozed slime in my >> new printer. Cleaned up good with a toothbrush and some contact >> cleaner. Went and bought some USA mad Energiser Brand. We will see how >> that works out. >> Where are Duracells made, USA or China? > > > I've not had anyone's alkaline batteries leak on > me in many years including Duracells. That's not > to argue with anyone's experiences . . . only to > add a data point. I'm not sure exactly what happens > with chemistry internal to the cell but I seem to > recall the evil stuff inside doesn't need to get > out until the cell is depleted. This is why virtually > every manufacturer recommends removal of cells > when the device is store for long periods of time. > > We use a goodly number of cells per year and our > time in the appliance is pretty short. I.e., cells > with expiration dates way out in the future don't > set around long in the appliance. I'll keep some > used cells around next time I change them out . . . > deplete them totally and see if they leak at some > later time. > > In the mean time, Duracell offers to repair or > replace a damaged appliance in their sales literature > at: > > http://www.duracell.com/procell/about/care.asp > > Now it may be that they could claim no fault if > somehow their analysis says the cell was left > installed long after it was depleted. I.e., flash > lights, radios, etc inadvertently left on or > perhaps the auto off feature isn't working, etc. > > Bob . . . =========================================================================================


    Message 14


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    Time: 01:14:34 PM PST US
    Subject: Dynon EFIS & EMS power on the main bus
    From: <longg@pjm.com>
    My Dynon cable has 3 power leads which I assume is done in an effort to alleviate this issue. Cable is from http://approachfaststack.com/ 1. Main bus (DC primary power switch) 2. Essential bus (or alternate backup source) 3. Battery bus (or always on connection) I have not experienced this behavior. If I start the Dynon while sitting with the power off, I get the message, but If I add ship power I do not get another message that it is on ship power. By pressing any button then Next->Next->Info you can monitor the battery charge and the ships battery level. Did you connect the always on lead to your battery bus? -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L. Nuckolls, III Sent: Tuesday, October 28, 2008 11:16 AM Subject: Re: AeroElectric-List: Dynon EFIS & EMS power on the main bus <nuckolls.bob@cox.net> >Question: My question here is about the wiring of the Dynon EMS and EFIS >to the main bus. They are powered up when the Master Switch grounds the >Battery Contactor. The starter contactor is downstream of the battery >contactor. When the starter is engaged by grounding the starter contactor >with the ignition switch, both Dynons lost ship's power and came up on the >backup battery. When we had tried this several times, the Dynon backup >battery was exhausted and the Dynons simply went off. Again, the engine >never started so all this was happening while the starter was engaged. My >question is whether or not the Dynons should be moved to the Avionics >bus. Yes, I have an Avionics Master and understand the concern about >it. The functional problem is that the tachometer and oil pressure are >displayed on the EMS and nowhere else. In the certified planes with glass >panels that I'm familiar with, the glass panels are similarly connected to >the Master Switch and stay on when the e! > ngine is started. I need to be able to check oil pressure as soon as > the engine starts. > >Thanks for any light you can shed on this. Next time, I'll move the fuel >selector from the Off position! The spirit and intent of avionics master switch was to "protect sensitive avionics from hazardous spikes generated during engine cranking." In years since, it has been discovered that while there was significant brown-out during the first few milliseconds of starter operation similar to that shown here: http://www.aeroelectric.com/Pictures/Curves/99_Saturn_SL1_2.gif there were no high-voltage excursions that could not be easily handled by simple components in the potential victim's power input conditioning. Further, the industry tapped a huge experience base by forming RTCA and inviting all interested parties in aviation to participate in quantifying and documenting the magnitude and type of stresses a piece of avionics should shrug off. Based on our current knowledge and skill in crafting airplanes and their accessories, there is no need for an avionics master switch to "protect" anything. I believe you stated that all batteries involved in your test were of questionable condition either by reason of age or state of charge. I'll suggest then that what you experienced was not worthy of generating concerns. You need to repeat the experiment with a known-good ship's battery and fully charged stand-by batteries. It's doubtful that anything was damaged. Everything you observed appears to be the byproduct of soggy batteries. Bob . . .


    Message 15


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    Time: 07:06:43 PM PST US
    From: "Robert McCallum" <robert.mccallum2@sympatico.ca>
    Subject: Re: Duracell Leaking Batteries
    Chris; You're correct that baking soda works for neutralizing acids, but by definition an alkaline battery is ALKALINE not acidic and therefore a weak acid is required to neutralize it. (vinegar, lemon juice etc) Bob McC ----- Original Message ----- From: "Christopher Stone" <rv8iator@earthlink.net> Sent: Wednesday, October 29, 2008 9:20 AM Subject: Re: AeroElectric-List: Re: Duracell Leaking Batteries <rv8iator@earthlink.net> > > John... > > Sodium bicarbonate (baking soda)works well for acids. Make a paste by mixing with water. Apply to the area to be cleaned. If there is acid present you will see the paste fizz on contact with the acid. Rinse with water and dry with air or alcohol. > > Chris > > -----Original Message----- > >From: JOHN TIPTON <jmtipton@btopenworld.com> > >Sent: Oct 29, 2008 7:38 AM > >To: aeroelectric-list@matronics.com > >Subject: Re: AeroElectric-List: Re: Duracell Leaking Batteries > > <jmtipton@btopenworld.com> > > > >What should one use to neutralize the 'leaked' gel/deposits > > > >John > > > > > >----- Original Message ----- > >From: "Robert L. Nuckolls, III" <nuckolls.bob@cox.net> > >To: <aeroelectric-list@matronics.com> > >Sent: Wednesday, October 29, 2008 11:26 AM > >Subject: Re: AeroElectric-List: Re: Duracell Leaking Batteries > > > > > >> <nuckolls.bob@cox.net> > >> > >> At 10:08 PM 10/28/2008 -0400, you wrote: > >>>My cheap boss bought a jumbo pack of Radio Shack Gold AA's. I loaded up my > >>>brand new Dymo thermal label maker with 6 of them a week ago and used it a > >>>little. Today, went to make a label and it was completely dead. Opened it > >>>up and every single one of them had oozed slime in my new printer. Cleaned > >>>up good with a toothbrush and some contact cleaner. Went and bought some > >>>USA mad Energiser Brand. We will see how that works out. > >>>Where are Duracells made, USA or China? > >> > >> I've not had anyone's alkaline batteries leak on > >> me in many years including Duracells. That's not > >> to argue with anyone's experiences . . . only to > >> add a data point. I'm not sure exactly what happens > >> with chemistry internal to the cell but I seem to > >> recall the evil stuff inside doesn't need to get > >> out until the cell is depleted. This is why virtually > >> every manufacturer recommends removal of cells > >> when the device is store for long periods of time. > >> > >> We use a goodly number of cells per year and our > >> time in the appliance is pretty short. I.e., cells > >> with expiration dates way out in the future don't > >> set around long in the appliance. I'll keep some > >> used cells around next time I change them out . . . > >> deplete them totally and see if they leak at some > >> later time. > >> > >> In the mean time, Duracell offers to repair or > >> replace a damaged appliance in their sales literature > >> at: > >> > >> http://www.duracell.com/procell/about/care.asp > >> > >> Now it may be that they could claim no fault if > >> somehow their analysis says the cell was left > >> installed long after it was depleted. I.e., flash > >> lights, radios, etc inadvertently left on or > >> perhaps the auto off feature isn't working, etc. > >> > >> Bob . . . > >> > >> > >> > >> > >> > > > > > > > > > > > > > > > > > > >


    Message 16


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    Time: 07:16:27 PM PST US
    From: "Robert McCallum" <robert.mccallum2@sympatico.ca>
    Subject: Re: Duracell Leaking Batteries
    Milt; According to the current Duracell website all mercury has been removed from their batteries and they are now safe to dispose of in household garbage without the risk of environmental contamination. (So they say !) Maybe the changes necessitated by the removal of the mercury is why these leaks are starting to turn up?? Quite a few things these days have been modified from their original composition to the detriment of function and for betterment of the environment. Bob McC ----- Original Message ----- From: "N395V" <Bearcat@bearcataviation.com> Sent: Wednesday, October 29, 2008 8:22 AM Subject: AeroElectric-List: Re: Duracell Leaking Batteries <Bearcat@bearcataviation.com> > > Duracells are manufactured in Lancaster SC and Cleveland Tennessee. > > The Goo is comprised of Sodium Hydroxide, Manganese dioxide, Mercury and a secret Brew inside a steel can. They will usually not leak until the Manganese dioxide shell is depleted then the steel can is oxidized by th "goo" > > > Duracell will replace any item that is damaged by a leaking battery. For low dollar items it is no questions asked, for a big ticket item they will probably want to see the battery to make sure it isn't 20 years old. > > > Best thing to clean with is vinegar rinse with water. > > -------- > Milt > 2003 F1 Rocket > 2006 Radial Rocket > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=210950#210950 > > > > > > > > > > > > > >


    Message 17


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    Time: 07:31:47 PM PST US
    Subject: Re: Duracell Leaking Batteries
    From: "N395V" <Bearcat@bearcataviation.com>
    I am going to guess it is a QC problem in the factory. I was an engineer for them in the mid 70s and we had a really tough time with new automated equipment in preventing "leakers". Problem was so bad at one plant we almost had to shut it down. They (Duracell/Mallory Battery) really took the problem of leaking batteries seriously. I am really shocked to read this thread. As you say things change and not always for the better. -------- Milt 2003 F1 Rocket 2006 Radial Rocket Read this topic online here: http://forums.matronics.com/viewtopic.php?p=211113#211113


    Message 18


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    Time: 07:54:01 PM PST US
    From: "Bruce Gray" <Bruce@glasair.org>
    Subject: Re: Duracell Leaking Batteries
    Yes, including the glue that holds the foam on the external tank of the orbital space shuttle. Bruce <http://www.glasair.org/> www.Glasair.org -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert McCallum Sent: Wednesday, October 29, 2008 11:12 PM Subject: Re: AeroElectric-List: Re: Duracell Leaking Batteries Milt; According to the current Duracell website all mercury has been removed from their batteries and they are now safe to dispose of in household garbage without the risk of environmental contamination. (So they say !) Maybe the changes necessitated by the removal of the mercury is why these leaks are starting to turn up?? Quite a few things these days have been modified from their original composition to the detriment of function and for betterment of the environment. Bob McC ----- Original Message ----- From: "N395V" < <mailto:Bearcat@bearcataviation.com> Bearcat@bearcataviation.com> aeroelectric-list@matronics.com> Sent: Wednesday, October 29, 2008 8:22 AM Subject: AeroElectric-List: Re: Duracell Leaking Batteries <mailto:Bearcat@bearcataviation.com> Bearcat@bearcataviation.com> > > Duracells are manufactured in Lancaster SC and Cleveland Tennessee. > > The Goo is comprised of Sodium Hydroxide, Manganese dioxide, Mercury and a secret Brew inside a steel can. They will usually not leak until the Manganese dioxide shell is depleted then the steel can is oxidized by th "goo" > > > Duracell will replace any item that is damaged by a leaking battery. For low dollar items it is no questions asked, for a big ticket item they will probably want to see the battery to make sure it isn't 20 years old. > > > Best thing to clean with is vinegar rinse with water. > > -------- > Milt > 2003 F1 Rocket > 2006 Radial Rocket > > > > > Read this topic online here: > > <http://forums.matronics.com/viewtopic.php?p=210950#210950> http://forums.matronics.com/viewtopic.php?p=210950#210950 > > > > > > > > ========== > Features Browse, Chat, <http://www.matronics.com/Navigator?AeroElectric-List> http://www.matronics.com/Navigator?AeroElectric-List > ========== > bsp; via the href="http://forums.matronics.com">http://forums.matronics.com > ========== > bsp; - generous support! > bsp; <http://www.matronics.com/contribution> http://www.matronics.com/contribution > ========== > > >




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