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I-Com Radio and Battery packs

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BobsV35B(at)aol.com
Guest

Posted: Thu Feb 01, 2007 8:37 am Post subject: I-Com Radio and Battery packs

Good Morning All,

  

 I checked the I-Com web site and found that they do offer the flip/flop  version. It is the IC-A6.

  

 Now, a question for the group!

  

 I-Com offers the following list of optional batteries.

  

    BP-208N BATTERY CASE

6 × AA (LR6) alkaline cells.    
BP-209N BATTERY PACK

Ni-Cd: 7.2V/1100mAh    
BP-210N BATTERY PACK

Ni-MH: 7.2V/1650mAh    
BP-211N BATTERY PACK

Li-Ion: 7.4V/1800mAh  The case that has the capability of using six alkaline's is like one  of the cases I have for my older I-Com. I am not sure which of the other  three I have for the "permanent" battery case. Can anyone tell me what the  advantages and disadvantages are of the other battery styles?

  

 Happy  Skies,



Old Bob

AKA

Bob Siegfried

Ancient Aviator

Stearman  N3977A

Brookeridge Air Park LL22

Downers Grove, IL 60516

630  985-8503

  [quote][b]

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nuckollsr(at)cox.net
Guest

Posted: Thu Feb 01, 2007 9:16 am Post subject: I-Com Radio and Battery packs

At 11:36 AM 2/1/2007 -0500, you wrote:



 	  Quote: 	
		  Good Morning All,



I checked the I-Com web site and found that they do offer the flip/flop 

version. It is the IC-A6.



Now, a question for the group!



I-Com offers the following list of optional batteries.



    * BP-208N BATTERY CASE

    * 6 × AA (LR6) alkaline cells.

    * BP-209N BATTERY PACK

    * Ni-Cd: 7.2V/1100mAh

    * BP-210N BATTERY PACK

    * Ni-MH: 7.2V/1650mAh

    * BP-211N BATTERY PACK

    * Li-Ion: 7.4V/1800mAh

The case that has the capability of using six alkaline's is like one of 

the cases I have for my older I-Com. I am not sure which of the other 

three I have for the "permanent" battery case. Can anyone tell me what the 

advantages and disadvantages are of the other battery styles?


	


     Depends on your goals. When I did the article at:



http://aeroelectric.com/articles/AA_Bat_Test.pdf



     I was exploring the economics of AA-alkaline cells

     in various operating scenarios and brands of cells.



     Since I did that article, one may no purchase Ni-Mh

     cells with energy content in the ballpark with

     alkaline cells . . . 2200 mAh +



     The loose-cell battery pack offers some attractive

     features. (1) you can "renew" the cells from a variety

     of technologies and local sources. (2) you can choose

     to throw-away alkaline cells or recharge Ni-Mh cells.

     (3) the loose cell pack contains more energy for radio

     operation than any of the proprietary packs offered.



     Based on these features, I'll always go for the loose-

    cell pack when ever they're available.



     Bob . . .



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

        ( IF one aspires to be "world class",  )

        ( what ever you do must be exercised   )

        ( EVERY day . . .                      )

        (                  R. L. Nuckolls III  )

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

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recapen(at)earthlink.net
Guest

Posted: Thu Feb 01, 2007 9:25 am Post subject: I-Com Radio and Battery packs

My understanding and part experience.....



The NiCd battery pack can develop a memory based on partial discharge state.

The 1800mAh pack will last longer and will take longer to charge.



For my handheld, I have the largest mAh pack available and one of the packs that allows the use of alkaline batteries.



Ralph Capen



--

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echristley(at)nc.rr.com
Guest

Posted: Thu Feb 01, 2007 9:45 am Post subject: I-Com Radio and Battery packs

BobsV35B(at)aol.com wrote:



 	  Quote: 	
		   Good Morning All,

  

 I checked the I-Com web site and found that they do offer the 

 flip/flop version. It is the IC-A6.

  

 Now, a question for the group!

  

 I-Com offers the following list of optional batteries.

  



     * *BP-208N* BATTERY CASE

       6 × AA (LR6) alkaline cells.

     * *BP-209N* BATTERY PACK

       Ni-Cd: 7.2V/1100mAh

     * *BP-210N* BATTERY PACK

       Ni-MH: 7.2V/1650mAh

     * *BP-211N* BATTERY PACK

       Li-Ion: 7.4V/1800mAh



 The case that has the capability of using six alkaline's is like one 

 of the cases I have for my older I-Com. I am not sure which of the 

 other three I have for the "permanent" battery case. Can anyone tell 

 me what the advantages and disadvantages are of the other battery styles?

  


	




The first is the mAh ratings.  The higher the number, the longer you can 

expect the battery to last.  It will have more juice in it.



The second is the type of battery.  Alkaline cells have a long shelf 

life.  Ni-Cd are rechargeable, but tend to leak down fairly fast.  Ni-MH 

and Li-Ion, not so much.



The other big differientator is cost.



If you only plan to use the unit in case of emergency, go for the 

alkaline.  If you're strapped for cash, go for the Ni-Cd, but be aware 

that you will be replacing them in two years or so.  If you want to use 

it as a daily unit, spring for the Li-Ion.



-- 

         ,|"|"|,              Ernest Christley       |

----===<{{(oQo)}}>===----    Dyke Delta Builder      |

        o|  d  |o        http://ernest.isa-geek.org  |

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Neal.George(at)hurlburt.a
Guest

Posted: Thu Feb 01, 2007 9:48 am Post subject: I-Com Radio and Battery packs

Bob - 



Nickel Cadmium (Ni-Cd) is the oldest of the three rechargeable technologies.  It offers reasonable energy density, lower cost.  It is capable of supplying higher currents (energy delivery) that the other chemistries (not an issue in HT radios).  It's rather sensitive to overcharging /overheating, and has the highest leakage or idle-discharge rate (about 10% per month just sitting on the shelf). 



Nickel Metal Hydride is a newer technology, offers higher energy density than NiCd and (if memory serves) is more tolerant of over-charging.  It's leakage rate is lower than Ni-Cd.  Lower energy delivery capabilities than Ni-Cd (again, not an issue with handhelds).  Costs more than Ni-Cd.  



Lithium-Ion is the newer of the three chemistries, offers the highest energy density, and the highest cost.  I believe it has the lowest idle-discharge rate of the three.  



An example - My cordless drill came with NiCd batteries and a charger placarded as compatible with either NiCd or NiMh.  NiCd batteries are probably best for folks who would use the drill a lot every day, but I may go weeks between small projects that entail 5 or 6 screws.  The original batteries lasted less than a year, and were often all but dead when I needed it for the occasional household project.  I rebuilt the battery packs with NiMh cells from AllBattery.com four years ago and it still performs very well.  It won't deliver the torque that it did with the NiCd batteries, but it has a much better shelf-life.



Neal

RV-7 N8ZG (wiring - again)

Navarre, FL



 

I-Com offers the following list of optional batteries.

 



*	BP-208N BATTERY CASE

	6 × AA (LR6) alkaline cells. 

*	BP-209N BATTERY PACK

	Ni-Cd: 7.2V/1100mAh 

*	BP-210N BATTERY PACK

	Ni-MH: 7.2V/1650mAh 

*	BP-211N BATTERY PACK

	Li-Ion: 7.4V/1800mAh 



The case that has the capability of using six alkaline's is like one of the cases I have for my older I-Com. I am not sure which of the other three I have for the "permanent" battery case. Can anyone tell me what the advantages and disadvantages are of the other battery styles?

 

Happy Skies,



Old Bob

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nuckollsr(at)cox.net
Guest

Posted: Thu Feb 01, 2007 10:13 pm Post subject: I-Com Radio and Battery packs

A follow-up on rechargeable, specifically Ni-Cad cells.



I dug through some materials I've captured off the 'net written

by "Mr. Battery" hisself, Isador Buchmann. Here's an excerpt

from his book on batteries.



http://aeroelectric.com/articles/Ni-Cd_Memory.pdf



Do a  Google search on this guy . . . he's done a lot of good

work and is graciously willing to share. I spent some time

talking with him on the phone several years ago. During

that conversation he told me that any of his work found in

the wild on the 'net could be passed on to you folks.



  Bob . . .

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