8 Channel receiver only 8 ports one for battery??
07-31-2006, 07:28 PM
#1
Junior Member
Thread Starter
Join Date: Jul 2006
Location: Brownsburg,
IN
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
8 Channel receiver only 8 ports one for battery??
8 channel receivers?? The receiver I have say its an 8 Channel but, the place for channel 8 is the battery plug. Can this slot be shared??
07-31-2006, 07:30 PM
#3
Senior Member
My Feedback: (1)
Join Date: Sep 2004
Location: FrederickMD
Posts: 2,114
Likes: 0
Received 0 Likes
on
0 Posts
RE: 8 Channel receiver only 8 ports one for battery??
Yes. You'll need a Y-connector. One end of the Y goes to the battery, the other to the channel 8 servo.
Brad
Brad
07-31-2006, 07:45 PM
#5
RE: 8 Channel receiver only 8 ports one for battery??
Yes, if you want to control 8 functions you will need a Y-harness for one channel. The battery will plug into one side of the harness and the servo into the other side. And as said above the battery can be plugged into any channel on the receiver. You can also have a dual battery setup, with 2 batteries plugged into 2 separate channels on the receiver. This will give you redundant power supply in the event that a battery or switch fails.
Hope this helps
Ken
Hope this helps
Ken
07-31-2006, 09:40 PM
#6
Junior Member
My Feedback: (2)
Join Date: Aug 2005
Location: , NC,
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
RE: 8 Channel receiver only 8 ports one for battery??
Ken,
If you have two batteries hooked to 2 different channels, does the receiver draw from both all the time, or does one provide power unless it fails? If the latter, how is it determined?
Thanks,
jeff
If you have two batteries hooked to 2 different channels, does the receiver draw from both all the time, or does one provide power unless it fails? If the latter, how is it determined?
Thanks,
jeff
07-31-2006, 09:52 PM
#7
RE: 8 Channel receiver only 8 ports one for battery??
jlimey,
No, the 2 batteries are in parallel. You have the same voltage but double the capacity. There is no "selection" of which one is used. The power is available from both batteries. The biggest advantage for doing it this way is for me is battery/switch failure. If one fails the other one is still available for use by the receiver.
Ken
No, the 2 batteries are in parallel. You have the same voltage but double the capacity. There is no "selection" of which one is used. The power is available from both batteries. The biggest advantage for doing it this way is for me is battery/switch failure. If one fails the other one is still available for use by the receiver.
Ken
08-01-2006, 11:01 AM
#8
Senior Member
Join Date: Feb 2006
Location: Charleston, SC
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
RE: 8 Channel receiver only 8 ports one for battery??
Help a old man with only 1 active brain cell please. If you use 2 Y connectors for 2 batteries do you plug the main tail into the receiver and the servo to one section of y and battery into other side? If i read it right, 2 600mah batteries connected this way will give you 1200 mah total and still at 4.8v. Is this correct? If so it is a good idea. Thanks for any help.
Jim
Jim
08-01-2006, 01:13 PM
#10
RE: 8 Channel receiver only 8 ports one for battery??
Remember that if one of the switches or battery packs developes a short (unlikely) it will kill both batteries. You would need to need to isolate the battery systems for true failsafe protection.
http://www.smart-fly.com/Products/BatShare/batshare.htm
or something similar would do that.
http://www.smart-fly.com/Products/BatShare/batshare.htm
or something similar would do that.
08-02-2006, 12:49 PM
#11
Senior Member
Join Date: Feb 2006
Location: Charleston, SC
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
RE: 8 Channel receiver only 8 ports one for battery??
Me again and another question. Could I hook up both batteries to one Y Connector plugged in the battery plug on receiver?
Jim
Jim
08-02-2006, 01:17 PM
#12
RE: 8 Channel receiver only 8 ports one for battery??
Connect both batteries to a Y-harness. Connect the Y-harness to a switch harness. Connect the switch harness to the RX. You do want a switch, don't you? If not - your way.
Or did you want 2 switches?
Or did you want 2 switches?
08-02-2006, 02:31 PM
#13
RE: 8 Channel receiver only 8 ports one for battery??
yes, you can connect both batteries to a Y-harness and then into one slot on the receiver. But Bruce brings out a point that needs thought about. Why are you adding in two batteries?? If it's for extra juice to your radio equipment then running it into one battery slot should do fine. But if you are doing this for redundancy then you need to look at what common equipment is in the chain. You can actually have a 2 batteries into a Y-harness through one switch into the receiver, but if the switch goes bad then you're still going to lose the plane. You can run each battery through a separate switch into a Y-harness into the receiver, but if the Y-harness goes bad you're going to lose the airplane. If you run separate batteries through separate switches into different slots on the receiver a failure on one battery/switch won't effect the plane because the other set will still be working.
Now I guess that I should back up a little bit, I put out this info as an FYI. To be totally honest with you I've never seen a switch fail in an airplane, the same with a Y-harness. Don't get me wrong, I'm not saying that they don't fail because I know that they do fail. What one really needs to do is weigh how much the plane is worth against the expense and added equipment needed to run dual batteries. Would I do it in a 40 size AFR that costs a couple of hundred dollars?? Heck no. How about a 30% aerobatic plane that costs thousands of dollars?? You bet I would. Anyway, it's up to each individual pilot what they want to do with a setup like this.
Hope this helps
Ken
Now I guess that I should back up a little bit, I put out this info as an FYI. To be totally honest with you I've never seen a switch fail in an airplane, the same with a Y-harness. Don't get me wrong, I'm not saying that they don't fail because I know that they do fail. What one really needs to do is weigh how much the plane is worth against the expense and added equipment needed to run dual batteries. Would I do it in a 40 size AFR that costs a couple of hundred dollars?? Heck no. How about a 30% aerobatic plane that costs thousands of dollars?? You bet I would. Anyway, it's up to each individual pilot what they want to do with a setup like this.
Hope this helps
Ken
