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Battery recharge technique

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ronburnett(at)charter.net
Guest

Posted: Tue Apr 28, 2020 8:06 am Post subject: Battery recharge technique

My RV6A had dual batteries and the Bus Manager system from Protek and a dual EFII ignition system. 



What is the proper order (technique) for hooking a charger up. The charger has three settings the last being AGM for my Oddessy PC680s.  Such as when to plug charger into the electric, etc. 



Also, in a dual system can I charge both batteries by hookup to the alternator fat wire and would I still use AGM?



Thanks,



Ron Burnett 



May you have the Lord's blessings today!

Sent from my iPad

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nuckolls.bob(at)aeroelect
Guest

Posted: Tue Apr 28, 2020 10:05 am Post subject: Battery recharge technique

At 11:01 AM 4/28/2020, you wrote:

  	  Quote: 	
		  --> AeroElectric-List message posted by: Ron Burnett <ronburnett(at)charter.net>



 My RV6A had dual batteries and the Bus Manager system from Protek and a dual EFII ignition system. 



 What is the proper order (technique) for hooking a charger up. 	


   How big a charger is this? i.e. what is the

   charge current? Do I presume correctly that

   the charger has a 'maintenance' mode and

   can be left connected indefinitely?

   What is your thinking for using a 'charger'

   as opposed to simple battery maintainers?



   The artfully maintained AGM battery has a very

   low self-discharge rated. This means that if

   you fly at least once every 30 days, the

   battery(ies) will be up and ready for

   every flight. For long term storage like

   over the winter, it's useful to use a

   small battery maintainer . . . a small 

   almost-a-charger that offsets the tiny

   self-discharge currents and keeps the

   battery topped off.



   The only time you need a CHARGER is when

   the battery has been inadvertently depleted and

   requires substantial replenishment. In this case,

   having a charge rate of 3, 6, or even 10A

   will get the battery back on its feet.



  	  Quote: 	
		  The charger has three settings the last being AGM for my

 Oddessy PC680s.  Such as when to plug charger into the electric, etc.



 Also, in a dual system can I charge both batteries by hookup to the

 alternator fat wire and would I still use AGM? 	


   I'm assuming you are expecting the charger to emulated

   a running alternator. To make this work, your system

   would have to be powered up with both battery

   contactors closed.



   Charging in-situ batteries from outside

   the aircraft is best managed by a charging

   or 'ground maintenance' connector. Preferably

   one for each battery. Of course, these

   same connectors would provide a means

   for applying battery maintainers for

   long term storage.



 

   Bob . . .

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neal.george(at)gmail.com
Guest

Posted: Tue Apr 28, 2020 3:49 pm Post subject: Battery recharge technique

Gentlemen – 

I would not presume to disagree with Bob on things electric.

Just a data point from my experience.

 

The CherokeeJet has a Concorde behind the rear baggage bulkhead (can’t remember if it’s 25- or 35-AHr).  It often sits neglected for months at a time, with little more than a touch on the wingtip and a regretfully muttered “…maybe tomorrow…”  It gets no electrical support between flights (I think I plugged it up once after an extended session of fiddling with the avionics (Schumacher 1562)).  I don’t remember when the current battery was mounted, but it has been many years.  On those rare occasions that I do get to drag it out, the battery spins the engine happily, and has no trouble grunting the initial compression strokes.  

 

On the other hand, I have killed several PC680s while not finishing my RV-7 project – some hooked to the 1562, others not.

 

My experience implies some of us worry way too much.  

 

Neal



==========

  The artfully maintained AGM battery has a very

  low self-discharge rated. This means that if

  you fly at least once every 30 days, the

  battery(ies) will be up and ready for

  every flight. For long term storage like

  over the winter, it's useful to use a

  small battery maintainer . . . a small 

  almost-a-charger that offsets the tiny

  self-discharge currents and keeps the

  battery topped off.



  Bob . . .

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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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ronburnett(at)charter.net
Guest

Posted: Wed Apr 29, 2020 4:29 am Post subject: Battery recharge technique

I have a battery doctor that I hook up occasionally and had been running some fuel pump tests. The charging voltage is 14.5 from my Plane Power alternator.



One Oddessy PC680 I replaced during condition inspection in October 2019 and the other is 20 months old. 

I have over 400 hours using the Bus Manager and 260 hours with the Lycoming 0360 and EFII system.

I will check all my connections.  

Ron Burnett



May you have the Lord's blessings today!Sent from my iPad

 	  Quote: 	
		  On Apr 28, 2020, at 1:08 PM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com> wrote:



  At 11:01 AM 4/28/2020, you wrote:

  	  Quote: 	
		  --> AeroElectric-List message posted by: Ron Burnett <ronburnett(at)charter.net>



 My RV6A had dual batteries and the Bus Manager system from Protek and a dual EFII ignition system. 



 What is the proper order (technique) for hooking a charger up. 	


   How big a charger is this? i.e. what is the

   charge current? Do I presume correctly that

   the charger has a 'maintenance' mode and

   can be left connected indefinitely?

   What is your thinking for using a 'charger'

   as opposed to simple battery maintainers?



   The artfully maintained AGM battery has a very

   low self-discharge rated. This means that if

   you fly at least once every 30 days, the

   battery(ies) will be up and ready for

   every flight. For long term storage like

   over the winter, it's useful to use a

   small battery maintainer . . . a small 

   almost-a-charger that offsets the tiny

   self-discharge currents and keeps the

   battery topped off.



   The only time you need a CHARGER is when

   the battery has been inadvertently depleted and

   requires substantial replenishment. In this case,

   having a charge rate of 3, 6, or even 10A

   will get the battery back on its feet.



  	  Quote: 	
		  The charger has three settings the last being AGM for my

 Oddessy PC680s.  Such as when to plug charger into the electric, etc.



 Also, in a dual system can I charge both batteries by hookup to the

 alternator fat wire and would I still use AGM? 	


   I'm assuming you are expecting the charger to emulated

   a running alternator. To make this work, your system

   would have to be powered up with both battery

   contactors closed.



   Charging in-situ batteries from outside

   the aircraft is best managed by a charging

   or 'ground maintenance' connector. Preferably

   one for each battery. Of course, these

   same connectors would provide a means

   for applying battery maintainers for

   long term storage.



 

   Bob . . .

- The Matronics AeroElectric-List Email Forum -

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:

http://www.matronics.com/Navigator?AeroElectric-List

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