Matronics Email Lists :: View topic - Did you install a "battery bus"?

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Did you install a "battery bus"?

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

rv8ch

Joined: 10 Jan 2006
Posts: 250
Location: Switzerland

Posted: Tue Sep 18, 2018 1:56 pm Post subject: Did you install a "battery bus"?

Hi,



I'm struggling to find anything that really needs to be connected to an always-hot battery bus.

I have an io360 with pmags which will power themselves in case of issue with the normal power bus, my mission is vfr day, GRT EFIS, Trig Radio and transponder, some lights (that I don't really need), and that's about it.

I could see some value in an always hot cigar lighter-type connection to charge a phone while on the ground, or to send some electrons to the battery, but not much else.

Am I missing something or are there others that don't have a battery bus?

Mickey Coggins

_________________
Mickey Coggins
http://www.rv8.ch/

peter(at)sportingaero.com
Guest

Posted: Tue Sep 18, 2018 2:12 pm Post subject: Did you install a "battery bus"?

Clock is about the only thing â€¦

From: owner-aeroelectric-list-server(at)matronics.com <owner-aeroelectric-list-server(at)matronics.com> On Behalf Of Mickey Coggins

Sent: 18 September 2018 13:36

To: aeroelectric-list(at)matronics.com

Subject: Did you install a "battery bus"?

Hi,

I'm struggling to find anything that really needs to be connected to an always-hot battery bus.

I have an io360 with pmags which will power themselves in case of issue with the normal power bus, my mission is vfr day, GRT EFIS, Trig Radio and transponder, some lights (that I don't really need), and that's about it.

I could see some value in an always hot cigar lighter-type connection to charge a phone while on the ground, or to send some electrons to the battery, but not much else.

Am I missing something or are there others that don't have a battery bus?

Mickey Coggins

rlborger(at)mac.com
Guest

Posted: Tue Sep 18, 2018 2:33 pm Post subject: Did you install a "battery bus"?

Some GPS units have a keep-alive circuit requiring connection to a battery buss.  Ensures that the GPS is always ready to go without the usual boot up time.



On Sep 18, 2018, at 7:35 AM, Mickey Coggins <mick-matronics(at)rv8.ch> wrote:



Hi,



I'm struggling to find anything that really needs to be connected to an always-hot battery bus.



I have an io360 with pmags which will power themselves in case of issue with the normal power bus, my mission is vfr day, GRT EFIS, Trig Radio and transponder, some lights (that I don't really need), and that's about it.



I could see some value in an always hot cigar lighter-type connection to charge a phone while on the ground, or to send some electrons to the battery, but not much else.



Am I missing something or are there others that don't have a battery bus?



Mickey Coggins

cluros(at)gmail.com
Guest

Posted: Tue Sep 18, 2018 5:22 pm Post subject: Did you install a "battery bus"?

I have an always hot plug that I can use to either charge the battery or power an accessory (12v air pump, phone charger). I use automotive connector plugs rather than cigarette lighter plugs but basically one cigarette lighter plug wired directly to the battery can be very handy but I can't figure out a use for anything more.



On Sep 18, 2018 16:01, "Mickey Coggins" <mick-matronics(at)rv8.ch (mick-matronics(at)rv8.ch)> wrote: 	  Quote: 	
		  Hi,



I'm struggling to find anything that really needs to be connected to an always-hot battery bus.

I have an io360 with pmags which will power themselves in case of issue with the normal power bus, my mission is vfr day, GRT EFIS, Trig Radio and transponder, some lights (that I don't really need), and that's about it.

I could see some value in an always hot cigar lighter-type connection to charge a phone while on the ground, or to send some electrons to the battery, but not much else.

Am I missing something or are there others that don't have a battery bus?

Mickey Coggins

art(at)zemon.name
Guest

Posted: Tue Sep 18, 2018 7:55 pm Post subject: Did you install a "battery bus"?

Mike,

I have a battery bus but it only powers two things: the keep-alive line for my MGL EFIS and an LED ceiling light (which has its own on/off switch).

If your EFIS doesn't require any keep-alive then you truly might not need a battery bus.Â 

And remember... nothing is forever. If you start without one and change your mind, it's OK. You can add a battery bus.

Cheers,

Â  Â  -- Art Z.



On Tue, Sep 18, 2018 at 5:13 PM Mickey Coggins <mick-matronics(at)rv8.ch (mick-matronics(at)rv8.ch)> wrote:



 	  Quote: 	
		  Hi,



I'm struggling to find anything that really needs to be connected to an always-hot battery bus.

I have an io360 with pmags which will power themselves in case of issue with the normal power bus, my mission is vfr day, GRT EFIS, Trig Radio and transponder, some lights (that I don't really need), and that's about it.

I could see some value in an always hot cigar lighter-type connection to charge a phone while on the ground, or to send some electrons to the battery, but not much else.

Am I missing something or are there others that don't have a battery bus?



 	


-- 

https://CheerfulCurmudgeon.com/"We do not see the world as it is. We see the world as we are."

John M Tipton

Joined: 07 Aug 2018
Posts: 45
Location: Devon - England

Posted: Wed Sep 19, 2018 12:41 am Post subject: Did you install a "battery bus"?

No battery bus ---



Sent from my iPad



     ----x--O--x----



 	  Quote: 	
		   On 18 Sep 2018, at 1:35 pm, Mickey Coggins <mick-matronics(at)rv8.ch> wrote:

 

 Hi,

 

 I'm struggling to find anything that really needs to be connected to an always-hot battery bus.

 

 I have an io360 with pmags which will power themselves in case of issue with the normal power bus, my mission is vfr day, GRT EFIS, Trig Radio and transponder, some lights (that I don't really need), and that's about it.

 

 I could see some value in an always hot cigar lighter-type connection to charge a phone while on the ground, or to send some electrons to the battery, but not much else.

 

 Am I missing something or are there others that don't have a battery bus?

 

 Mickey Coggins

glastar(at)gmx.net
Guest

Posted: Wed Sep 19, 2018 12:54 am Post subject: Did you install a "battery bus"?

Hi Mickey,



getting close , I have some items on the Battery Bus but my design is 

already 15 years flying (based on Z11) 



I have on the battery bus:



 Â Â Â Â  -the connection to the Essential bus (alternate feed) (could be 

direct on the battery)

 Â Â Â Â  -a connection to my handheld com

 Â Â Â  - a connection to my handheld GPS

 Â Â Â  - a connection to the Hoobs



Cheers Werner



On 18.09.2018 14:35, Mickey Coggins wrote:

 	  Quote: 	
		   Hi,



 I'm struggling to find anything that really needs to be connected to 

 an always-hot battery bus.

nuckolls.bob(at)aeroelect
Guest

Posted: Wed Sep 19, 2018 11:08 am Post subject: Did you install a "battery bus"?

 	  Quote: 	
		  

 On 18.09.2018 14:35, Mickey Coggins wrote:

  	  Quote: 	
		  Hi,



 I'm struggling to find anything that really needs to be connected to an always-hot battery bus. 	
	


   Any airplane fitted with a battery bus has one or more

   devices that need to be functional with the DC PWR master

   switches OFF.  When I worked at Cessna in '64, single engine

   airplanes had two fuses mounted right at the battery box

   to power the electric clock and the oil-pressure actuated

   Hobbs hour meter. During the time I worked there, I can

   recall only one other system that was tied to a 'battery

   bus'. The T41 trainer (172 on steroids) had a third fuse

   that powered a solid state 121.5 transceiver mounted

   back behind the baggage compartment.



   The suggested loads for the battery bus in OBAM

   aircraft added features like dome lights, under-wing

   utility lighting, baggage compartment lights, utility

   jacks in cockpit for supporting a hand-held (backup

   comm and/or ATIS/Clearance Delivery), and/or a handy port for

   attaching battery maintainer to the ship's battery.



   When electrically dependent engines came along, it

   seemed prudent to run all engine support systems from

   the battery bus so that DC PWR masters could be

   shut off without compromising the engine.



   Every builder's needs will be different and new

   reasons to tap the battery directly may yet arise

   as the art and science of our craft evolves.

   But it's not difficult to imagine a project with

   no such features.



 

 

   Bob . . .

rv8ch

Joined: 10 Jan 2006
Posts: 250
Location: Switzerland

Posted: Fri Sep 21, 2018 8:46 am Post subject: Did you install a "battery bus"?

Many thanks for all the feedback, gents.Â  I've decided to skip the battery bus.Â  I reserve the right to change my mind at the last minute!Â  :DMickey Coggins

_________________
Mickey Coggins
http://www.rv8.ch/

nuckolls.bob(at)aeroelect
Guest

Posted: Fri Sep 21, 2018 11:26 am Post subject: Did you install a "battery bus"?

At 08:59 AM 9/21/2018, you wrote:

  	  Quote: 	
		  Many thanks for all the feedback, gents.Â  I've decided to skip the battery bus.Â  I reserve the right to change my mind at the last minute! 	


   You can change your mind years from now . . .

   no telling what new electro-whizzies worthy

   of always-hot power source might emerge.

   It's an OBAM aircraft . . . you can DO

   it completely free of any requirement for

   permission!



 

 

   Bob . . .

Mauledriver(at)nc.rr.com
Guest

Posted: Tue Sep 25, 2018 1:02 pm Post subject: Did you install a "battery bus"?

Just for background - the GRTs used to       require a battery bus connection to keep the internal clock       running.Â  I put one in for that.Â  Later they they used the GPS       signal to update the time when the unit was powered up.Â  I       disconnected it.

       

       On 9/18/2018 8:35 AM, Mickey Coggins wrote:

     

      	  Quote: 	
		                Hi,         

         

         I'm struggling to find anything that really needs to be           connected to an always-hot battery bus.

         

         

         I have an io360 with pmags which will power themselves in           case of issue with the normal power bus, my mission is vfr           day, GRT EFIS, Trig Radio and transponder, some lights (that I           don't really need), and that's about it.

         

         

         I could see some value in an always hot cigar lighter-type           connection to charge a phone while on the ground, or to send           some electrons to the battery, but not much else.

         

         

         Am I missing something or are there others that don't have           a battery bus?

                                 Mickey Coggins

           

         

       

     	
     



            	 		 			 				 			 		 		 			

 				This email has been checked for viruses by Avast antivirus software. 				

www.avast.com 			 		 	   [url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2] [/url]

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum