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Garmin 296 power/battery

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Dale Ensing

Joined: 11 Jan 2006
Posts: 571
Location: Aero Plantation Weddington NC

Posted: Fri Apr 14, 2006 3:07 pm Post subject: Garmin 296 power/battery

I am up grading my RV-6A from a Garmin 295 to a 296 and have a question for

you battery knowledgeable types.

I plan to hard wire the power/data cord into the airplane just as I did the

295. The 295 uses AA alkaline batteries. They are only used when the unit is

turned on without the master being on. -like loading a flight route. - and

are backup if needed.



The 296 uses a Lithium-ion re-chargeable battery which will be recharged

each time the master is on and will be used very a little as described

above. Will this constant charging and little use destroy a lithium-ion

battery?  Do I need to remove the unit and cycle the batteries occasionally?

Any suggestions?

Dale Ensing

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_________________
Dale Ensing
RV-6A
Aero Plantation
Weddington NC

nuckollsr(at)cox.net
Guest

Posted: Sat Apr 22, 2006 4:20 am Post subject: Garmin 296 power/battery

At 07:01 PM 4/14/2006 -0400, you wrote:



 	  Quote: 	
		  

<densing(at)carolina.rr.com>



I am up grading my RV-6A from a Garmin 295 to a 296 and have a question for

you battery knowledgeable types.

I plan to hard wire the power/data cord into the airplane just as I did the

295. The 295 uses AA alkaline batteries. They are only used when the unit is

turned on without the master being on. -like loading a flight route. - and

are backup if needed.



The 296 uses a Lithium-ion re-chargeable battery which will be recharged

each time the master is on and will be used very a little as described

above. Will this constant charging and little use destroy a lithium-ion

battery?  Do I need to remove the unit and cycle the batteries occasionally?

Any suggestions?

Dale Ensing


	


   This is entirely under control of the circuit designers.

   It's a reasonable assumption that unless the instructions

   for the device caution you against having external power

   applied for long periods of time, then it's okay to do

   it. I can't imagine any creative designer doing it any other

   way. We have three laptops in the family that use L-I batteries

   for portable use and ALL are used as many hours or more with

   external power plugged in. None of the instruction manuals

   suggest that this is a 'bad' thing to do.



    Bob . . .

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Dale Ensing

Joined: 11 Jan 2006
Posts: 571
Location: Aero Plantation Weddington NC

Posted: Sun Apr 23, 2006 12:18 pm Post subject: Garmin 296 power/battery

Thanks Bob, you said

"We have three laptops in the family that use L-I batteries

   for portable use and ALL are used as many hours or more with

   external power plugged in. None of the instruction manuals

   suggest that this is a 'bad' thing to do."



Bob,

The laptop experience is one of the reasons I asked the question. My wife

gave me her laptop when she needed to upgrade for her business. She had

always used the laptop with external power. When I tried to use the battery

I found it now has a very short endurance. Maybe 10 minutes. I know NiCads

develope a memory...do L-I also do that? Have tried cycling the L-I but no

luck.

Dale Ensing

do not archive

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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_________________
Dale Ensing
RV-6A
Aero Plantation
Weddington NC

nuckollsr(at)cox.net
Guest

Posted: Tue Apr 25, 2006 4:23 pm Post subject: Garmin 296 power/battery

At 04:14 PM 4/23/2006 -0400, you wrote:



 	  Quote: 	
		  

<densing(at)carolina.rr.com>



Thanks Bob, you said

"We have three laptops in the family that use L-I batteries

    for portable use and ALL are used as many hours or more with

    external power plugged in. None of the instruction manuals

    suggest that this is a 'bad' thing to do."



Bob,

The laptop experience is one of the reasons I asked the question. My wife

gave me her laptop when she needed to upgrade for her business. She had

always used the laptop with external power. When I tried to use the battery

I found it now has a very short endurance. Maybe 10 minutes. I know NiCads

develope a memory...do L-I also do that? Have tried cycling the L-I but no

luck.


	


    There are a lot of ingredients in the recipe for success

    not the least of which is how 'smart' the laptop's charger

    is. I had a laptop years ago that ate batteries but for the

    most part, we've had good success for probably 3 or 4 dual-use

    laptops where they're plugged into AC mains most of the time.



    The easiest way to kill a perfectly good battery is to

    overcharge it. I suspect this as a strong hypothesis for

    your own experience. None of the laptops I've owned ever

    cautioned against extended operation under AC mains power.

    I suspect this is because the designers believed that their

    particular battery maintenance protocols were optimized for

    this kind of service.



    Bob . . .

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