---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 08/09/10: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:26 AM - Re: Newbie needs electric help (checkn6) 2. 03:34 PM - Re: Re: New Z-8 drawing (Robert L. Nuckolls, III) 3. 06:02 PM - Re: Battery tender (David LLoyd) 4. 06:33 PM - Re: Battery tender (Bill Hibbing) ________________________________ Message 1 _____________________________________ Time: 05:26:40 AM PST US Subject: AeroElectric-List: Re: Newbie needs electric help From: "checkn6" I agree with Bob that this is an easy task, however I strongly recommend that you invest in the book and do research on the website just to get a good understanding of the electrical system in your machine and how it all ties together. I'm certainly no expert but I can't tell you how many times I have shaken my head at those with "0" understanding of even the basics. "Gee! Why can't anyone hear me on my radio?" "Gee! my "X" fuse keeps blowing out but I keep putting in a bigger one and it will stop blowing eventually" Ignorance is no excuse when it comes to flying so know your bird inside and out, it may just save your bacon some day. You don't have to be an electrical engineer but is sure is comforting to understand the basics at the very least. And one other important point is that by purchasing the book you also support Bob and his efforts to keep us all educated and safe. I know he gives a lot of his time freely but I like to help those that help me. Just my two pennies Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=308030#308030 ________________________________ Message 2 _____________________________________ Time: 03:34:32 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: New Z-8 drawing >1.My ground power jack positve lead to the contactor is about 30". >When the SB alternator is on line the GPJ lead is hot to the battery >through a 40a MANL. The ground power lead can't go through the MANL40. You can't crank an engine through that small a fuse. This lead is in the same class as a "FAT WIRE" that feeds battery/cranking circuits and does not give rise to a lot of risk that cannot be managed by shutting off the crew controlled power switches. >2. To control the GPJ/SB alt contactor by the SB Alt switch, without >having to remember to close the GPJ contactor, I have two parallel >switch legs from the neg side of the contactor coil to ground. One for >the GPJ per the Z figure and one for a leg of the DPDT switch that >has 9024 control of the SB alt.on the other leg. >Other than inadvertently closing the GPJ/SB alt contactor by the GP >switch and putting both alts online at once (are there bad things >that happen??), I can't see any problems with doing this. But when >asking a system to do double duty, I'd like some other eyes to have >a look for gotchas. I'm praying over this a bit. What's your s/b alternator/regulator combination again? >And speaking of double duty, could the 9024 Ovm on the contactor >also dispense with the need for the (9005 LVM) on the Batt bus? Yes, or better yet, the 9011 dual LV monitor can watch both the battery and main busses and perhaps handle s/b alt OV too. Still sifting the marbles . . . Bob . . . ________________________________ Message 3 _____________________________________ Time: 06:02:18 PM PST US From: "David LLoyd" Subject: Re: AeroElectric-List: Battery tender Bill, The BT is mass produced in a foreign land like everything else this country now uses. Inside the box are two adjustable mini-pots. They were obviously set wrong as the float voltage should be about 13.1 to 13.3 volts. If you are handy you can change the float voltage pot. It is silicone'd to hold its setting so a little exacto knifing has to be done to get the pot to move. The pot change needed is "tiny" so if opened, go in baby sets and always do the experiment with a battery connected to the outputs and allow an hour or more for the new setting to stabilize. Otherwise....just get another unit and test it thoroughly when opened so you can take it back if the settings are wrong. Be sure to use a good volt meter. David ------------------------------------------------------------------------- ------- ----- Original Message ----- From: Bill Hibbing To: aeroelectric-list@matronics.com Sent: Thursday, July 01, 2010 9:26 AM Subject: AeroElectric-List: Battery tender I've got a BatteryTender Plus that has a float voltage of 12.7 volts. This is on both a new battery and the one that is being replaced. Is it time for a new Batterytender? Bill Glasair SIIS-FT ________________________________ Message 4 _____________________________________ Time: 06:33:46 PM PST US From: "Bill Hibbing" Subject: Re: AeroElectric-List: Battery tender Thanks David, I took Lectric Bob's advice and bought a Schumacher at WallyWorld for about $20 or so. But I still have the unit in question so I'm going to play around with it and see what I can do...when it cools off a bit here in Memphis. Bill ----- Original Message ----- From: David LLoyd To: aeroelectric-list@matronics.com Sent: Monday, August 09, 2010 8:00 PM Subject: Re: AeroElectric-List: Battery tender Bill, The BT is mass produced in a foreign land like everything else this country now uses. Inside the box are two adjustable mini-pots. They were obviously set wrong as the float voltage should be about 13.1 to 13.3 volts. If you are handy you can change the float voltage pot. It is silicone'd to hold its setting so a little exacto knifing has to be done to get the pot to move. The pot change needed is "tiny" so if opened, go in baby sets and always do the experiment with a battery connected to the outputs and allow an hour or more for the new setting to stabilize. Otherwise....just get another unit and test it thoroughly when opened so you can take it back if the settings are wrong. Be sure to use a good volt meter. David ------------------------------------------------------------------------- ----- ----- Original Message ----- From: Bill Hibbing To: aeroelectric-list@matronics.com Sent: Thursday, July 01, 2010 9:26 AM Subject: AeroElectric-List: Battery tender I've got a BatteryTender Plus that has a float voltage of 12.7 volts. This is on both a new battery and the one that is being replaced. Is it time for a new Batterytender? Bill Glasair SIIS-FT href="http://www.matronics.com/Navigator?AeroElectric-List">http://www. matronics.com/Navigator?AeroElectric-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ------------------------------------------------------------------------- ----- Checked by AVG - www.avg.com 08/09/10 13:35:00 ------------------------------------------------------------------------------------- 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.