---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 12/23/09: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:51 AM - Re: duracell battery leak (fox5flyer) 2. 07:51 AM - Re: Re: Re: Ammeter Help (John Burnaby) 3. 07:58 AM - Re: Re: Re: Ammeter Help (Robert L. Nuckolls, III) 4. 09:40 AM - Re: duracell battery leak (Robert L. Nuckolls, III) 5. 10:55 AM - Was Ammeter Help- Now about switches (John Burnaby) 6. 04:43 PM - Re: duracell battery leak (David LLoyd) 7. 06:31 PM - Re: duracell battery leak (ray) ________________________________ Message 1 _____________________________________ Time: 04:51:26 AM PST US From: "fox5flyer" Subject: Re: AeroElectric-List: duracell battery leak I had a 3 cell Mag Light with Duracells in it. Following the marketing hype I always thought they were the best so I bought them in large packages. Being a plumber I used it on a fairly regular basis and I noticed that I had to bump it sometimes to make it turn on. One day when it wouldn't turn on at all so I pulled the cap and found that the batteries had leaked inside and corroded the whole interior which made them impossible to remove. I ended up having the throw it in the bin. No, I didn't leave it on or leave it stored with dead batteries. This wasn't the first time I had an experience with leaking Duracells. Having heard about this previously I decided at that moment that the best fix for me was to discontinue all use of Duracells and let others know of my problem with them. If enough folks stop using them they'll soon fix the problem...in the form of "new and improved ultra..." Deke ________________________________ Message 2 _____________________________________ Time: 07:51:44 AM PST US From: "John Burnaby" Subject: Re: AeroElectric-List: RE: Re: Ammeter Help " If you have an electrically dependent engine then perhaps your plans should include a second alternator capable of supporting the engine . . ."I'm working on it. The available vacumn pad on my Franklin turns at about 0.8:1 so the B&C 20 amp aux alternator won't put out enough juice below 2400 eng rpm to keep my E-bus alive. The B&C "stack 'o pancakes" 30 amp model for Continentals has some promise of fitting in a fuel pump drive hole on the accessory case.Even without a spare alternator, I'm VFR comfortable with the triple redundancy of an alternator and two batteriesto keep the fires lit. ________________________________ Message 3 _____________________________________ Time: 07:58:12 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: RE: Re: Ammeter Help >Even without a spare alternator, I'm VFR comfortable with the triple >redundancy of an alternator and two batteries > >to keep the fires lit. Understand . . . let's strive to base your 'comfort' on knowing as much about watt-seconds in the batteries as you have gallons in the tanks. Bob . . . ________________________________ Message 4 _____________________________________ Time: 09:40:35 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: duracell battery leak A few years ago I did a study of variability in various brands of alkaline batteries. I concluded from the study that there is no extra value to be realized for the purchase of batteries that have high-dollar advertising budgets. See: http://www.aeroelectric.com/articles/AA_Bat_Test.pdf I suspect that any brand and any size of alkaline cell is capable of leaking under some conditions. Further, given today's business environment for farming out the production about any kind of product, there's not much you can hang a hat on for stating that brand D's demonstrable leakage problems will go away if one moves their loyalty to brand E. If you dig around in my alkaline cell stock that ranges from AAAA to D cells, you'll find a host of different brands. I've not suffered a severe battery leakage event in so long I don't recall the last time. At the same time, we go through batteries pretty quickly. No cell sits around in a seldom used device. The fact that some of us here on the list have suffered a leakage event with a particular brand is not a definitive study of the propensity of that brand for failure. If say 90% of all cells presently occupying the battery box of our favorite accessories are Duracells . . . it's axiomatic that the propensity of any failures will be in Duracells. Bob . . . ________________________________ Message 5 _____________________________________ Time: 10:55:08 AM PST US From: "John Burnaby" Subject: AeroElectric-List: Was Ammeter Help- Now about switches Bob, Now you've got me thinking Z-14. If I go with another alternator, I'm one contactor away from Z-14. One thing that is vexing to me is that I'm using Honeywell AML 34 switches because the aesthetics appeal to me. Problem is that they are only available as DPST. I haven't thought about this too much, but I'm assuming that I can accomplish the switching functions shown in Z-14 and other architectures with the Honeywell switches, but I'll just have to use more of them and some behind-the-panel circuitry??? I can see the S-700-2-5 being replaced with an AML 34 and a pusbutton switch. But what combination would I use to achieve the function of S-700-2-10? In other architectures I see this switch associated with some automatic function that I don't understand. ________________________________ Message 6 _____________________________________ Time: 04:43:58 PM PST US From: "David LLoyd" Subject: Re: AeroElectric-List: duracell battery leak Deke, Sorry that you had to toss the 3-cell Mag Light. I would have made a suggestion to try and save it. I had a 5-cell do that and with Duracell's. At first I thought about sending the whole mess to Duracell as they probably would have replaced the mag light. But, decided to see if I could fix it. Using penetrating oil to soak the cell sides I was able to tap out the bad cells with a dowel and light hammer work. Amazingly, the mag light is made pretty well and it cleaned up just fine with baking soda and oil. Now, I check the flashlight from time to time as it is my emergency light for the car and gets little use. David ----- Original Message ----- From: fox5flyer To: aeroelectric-list@matronics.com Sent: Wednesday, December 23, 2009 4:46 AM Subject: Re: AeroElectric-List: duracell battery leak I had a 3 cell Mag Light with Duracells in it. Following the marketing hype I always thought they were the best so I bought them in large packages. Being a plumber I used it on a fairly regular basis and I noticed that I had to bump it sometimes to make it turn on. One day when it wouldn't turn on at all so I pulled the cap and found that the batteries had leaked inside and corroded the whole interior which made them impossible to remove. I ended up having the throw it in the bin. No, I didn't leave it on or leave it stored with dead batteries. This wasn't the first time I had an experience with leaking Duracells. Having heard about this previously I decided at that moment that the best fix for me was to discontinue all use of Duracells and let others know of my problem with them. If enough folks stop using them they'll soon fix the problem...in the form of "new and improved ultra..." Deke ________________________________ Message 7 _____________________________________ Time: 06:31:57 PM PST US From: ray Subject: Re: AeroElectric-List: duracell battery leak That is similar to my experiences with Duracell. For more than a decade I used them in my car and boat flashlights and had no problems. More recently I have had several leak. Same environment and use profile, many more failures. Anecdotal evidence, but enough to send me in search of a different battery. Raymond Julian Kettle River, MN. do not archive David LLoyd wrote: > Deke, > Sorry that you had to toss the 3-cell Mag Light. I would have made a > suggestion to try and save it. I had a 5-cell do that and with > Duracell's. At first I thought about sending the whole mess to Duracell > as they probably would have replaced the mag light. But, decided to see > if I could fix it. Using penetrating oil to soak the cell sides I was > able to tap out the bad cells with a dowel and light hammer work. > Amazingly, the mag light is made pretty well and it cleaned up just fine > with baking soda and oil. Now, I check the flashlight from time to time > as it is my emergency light for the car and gets little use. > David > > ----- Original Message ----- > *From:* fox5flyer > *To:* aeroelectric-list@matronics.com > > *Sent:* Wednesday, December 23, 2009 4:46 AM > *Subject:* Re: AeroElectric-List: duracell battery leak > > I had a 3 cell Mag Light with Duracells in it. Following the > marketing hype I always thought they were the best so I bought them > in large packages. Being a plumber I used it on a fairly regular > basis and I noticed that I had to bump it sometimes to make it turn > on. One day when it wouldn't turn on at all so I pulled the cap and > found that the batteries had leaked inside and corroded the whole > interior which made them impossible to remove. I ended up having > the throw it in the bin. No, I didn't leave it on or leave it > stored with dead batteries. This wasn't the first time I had an > experience with leaking Duracells. > Having heard about this previously I decided at that moment that the > best fix for me was to discontinue all use of Duracells and let > others know of my problem with them. If enough folks stop using > them they'll soon fix the problem...in the form of "new and improved > ultra..." > Deke > > > > * > > href="http://www.aeroelectric.com">www.aeroelectric.com > href="http://www.buildersbooks.com">www.buildersbooks.com > href="http://www.homebuilthelp.com">www.homebuilthelp.com > href="http://www.howtocrimp.com">www.howtocrimp.com > href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matronics.com/Navigator?AeroElectric-List > href="http://forums.matronics.com">http://forums.matronics.com > > * > > * > > > * ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.