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Panasonic LC-RD1217P and Van's Battery Box Misfit

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ashuramj(at)hotmail.com
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Posted: Mon Jun 05, 2006 8:05 pm Post subject: Panasonic LC-RD1217P and Van's Battery Box Misfit

I just received my new Panasonic battery from  Digi-Key per the Nuckolls seminar, and "fit" it into my Firewall Vans Battery  Box.  It is now jammed half-way in and half-way out.  Soaking with  Boe-lube has not helped.  What is the story on this?  Anyone else have  a misfit problem like this?  I now have two expensive pieces of soon-to-be  trash.

 Mike

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dsvs(at)comcast.net
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Posted: Mon Jun 05, 2006 8:27 pm Post subject: Panasonic LC-RD1217P and Van's Battery Box Misfit

The  Van's battery box is made to fit the PC 680.  You may need to switch  batteries or make your own box.  Don

 [quote]   --

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flyeyes(at)mac.com
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Posted: Mon Jun 05, 2006 8:35 pm Post subject: Panasonic LC-RD1217P and Van's Battery Box Misfit

Ouch.

I'm guessing that the coefficient of thermal expansive is greater for the box than for the battery.  You might try (gently) heating the assembly.



On Jun 5, 2006, at 10:59 PM, Michael Ashura wrote:

 	  Quote: 	
		  I just received my new Panasonic battery from Digi-Key per the Nuckolls seminar, and "fit" it into my Firewall Vans Battery Box.  It is now jammed half-way in and half-way out.  Soaking with Boe-lube has not helped.  What is the story on this?  Anyone else have a misfit problem like this?  I now have two expensive pieces of soon-to-be trash.

Mike

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lhelming(at)sigecom.net
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Posted: Tue Jun 06, 2006 2:51 am Post subject: Panasonic LC-RD1217P and Van's Battery Box Misfit

 

 [quote]   ---

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alexpeterson(at)earthlink
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Posted: Tue Jun 06, 2006 3:53 am Post subject: Panasonic LC-RD1217P and Van's Battery Box Misfit

Probably the other way around - plastics thermally expand  and contract much more than aluminum.  Try the freezer (although if it is  mounted to the plane, it might take a large one).

  

   

Alex Peterson

RV6-A N66AP 758  hours

Maple Grove, MN 

<?xml:namespace prefix = o ns =  "urn:schemas-microsoft-com:office:office"  /> 



  

  



  	  Quote: 	
		           From:    owner-aeroelectric-list-server(at)matronics.com    [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of    James Freeman

Sent: Monday, June 05, 2006 11:33 PM

To:    aeroelectric-list(at)matronics.com

Subject: Re: AeroElectric-List:    Panasonic LC-RD1217P and Van's Battery Box Misfit

   

Ouch.   

   I'm guessing that the coefficient of thermal expansive is greater for the    box than for the battery. You might try (gently) heating the assembly.

   

      On Jun 5, 2006, at 10:59 PM, Michael Ashura wrote:

    	  Quote: 	
		       I just received my new Panasonic      battery from Digi-Key per the Nuckolls seminar, and "fit" it into my      Firewall Vans Battery Box. It is now jammed half-way in and half-way out.      Soaking with Boe-lube has not helped. What is the story on this? Anyone else      have a misfit problem like this? I now have two expensive pieces of      soon-to-be trash.

     Mike

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rv9jim(at)juno.com
Guest

Posted: Tue Jun 06, 2006 5:52 am Post subject: Panasonic LC-RD1217P and Van's Battery Box Misfit

Mike,

        I have the Panasonic battery also and it did the same thing. 

However, I did not let it get far enough in to not get it out.  I am

doing the mod that someone on the web to their battery box.  They removed

the front portion of the box and put steel hinges on each side.  By

removing the hinge pins, you remove the front cover and remove the

battery towards the front.  I bought the steel hinge from McMaster Carr

(about 3') and cut off what I needed and took what pin length I needed. 

The pin is about an inch and half longer than the hinge.  I flattened the

top 1/4" so I can drill it for a safety wire to keep it from moving. 

Problem solved.

Jim Nelson

FWF   RV9-A

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nuckollsr(at)cox.net
Guest

Posted: Fri Jun 09, 2006 4:28 am Post subject: Panasonic LC-RD1217P and Van's Battery Box Misfit

At 09:44 PM 6/8/2006 -0400, you wrote:



 	  Quote: 	
		  Hi Bob,

         I took a few pix of the mod to the battery box.  This should give

you the idea on how it goes together.  My first attempt tried to get the

whole "other" battery into the box.  However, the Panasonic does not have

the little ridge around the top which holds the battery about 1/4" up

from the bottom.  I will file that ridge off the generic battery so it

will go all the way to the bottom.  Then again, I might put a spacer in

the bottom to take up that space.  I'm not in favor of trimming the

little flange around the top of the "other" battery.  It seems to be

where the top and bottom come together.  What is your thought on trimming

or spacing for that little protrusion?


	


   I've posted your pictures at:



http://www.aeroelectric.com/Pictures/Battery/RV_Battery_Box



   It's unfortunate that the original sizing of this box

   was so tight as to be brand specific as to what would

   fit inside. There's nothing wrong with allowing generous

   clearance around the sides and then slipping a corrugated

   cardboard "shims" in to take out the rattle.



   Trimming the battery case as you've described is

   probably going to be okay too.



   For others who have yet to fabricate battery installation

   provisions, keep in mind that RG batteries don't need

   a box. You can capture the battery's footprint in a

   shallow tray . . . sides perhaps 1/2" deep and strap

   the battery into the tray with some simple retention

   of sheet metal or even nylon webbing.



   I note further that your battery of choice is not

   Panasonic. The treaded posts for attaching fat wires

   offers some challenges. Certainly go to these posts

   with 4AWG welding cable fitted with terminals that

   are close fit to the screw threads. Torque pretty snug

   and safety wire screw head if possible.



   These are pretty dinky posts and fastener sizes for

   this application. They can be made to work but I'd

   suggest some extra attention to make-up for joint

   integrity.

   Bob . . .



      ---------------------------------------------------------

      < What is so wonderful about scientific truth...is that >

      < the authority which determines whether there can be   >

      < debate or not does not reside in some fraternity of   >

      < scientists; nor is it divine. The authority rests     >

      < with experiment.                                      >

      <                            --Lawrence M. Krauss       >

      ---------------------------------------------------------

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