RunRyder - Field charging box setup question???

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Tools and Field Equipment > Field charging box setup question???

reiserrob2003
Senior Heliman
Location: Brockton, MA.

I'm trying to create a field charging box with two chargers and a 12 volt battery for charging at the field. I would also like to make this box able to be plugged into a 12 volt source such as a DC power supply for more versatility. Is there a way to wire it so that I can isolate the 12volt hobby battery from a secondary power source without having to use, say a toggle switch, perhaps a diode or something? Or is there any other way to make this happen?

11-29-2007 08:18 PM

J murf
Senior Heliman
Location: Wexford Ireland

am i right in thinking you want to have the battery give electricity to your chargers and automatically disconnect the battery when you connect a power supply . the power supply will then give electricity to the chargers and there will be no connectio to your battery

11-29-2007 09:05 PM

J murf
Senior Heliman
Location: Wexford Ireland

if you are able to wire a (relay) then this is the answer you wont need anything else.its hard to explain how to do it if you dont know how to wire a relay let me know ?.

11-29-2007 09:21 PM

P47 Jug - Al
Senior Heliman
Location: Rocky River, OH USA

Why not use stacking bananna plugs for the wires going into your charger. Push them either into jacks that go to your battery or directly into your DC power source.

Al
TRex 450 V2

11-29-2007 11:01 PM

J murf
Senior Heliman
Location: Wexford Ireland

where has reiserrob2003 gone? ,and did he ever finish his field box?..

12-06-2007 10:35 PM

P47 Jug - Al
Senior Heliman
Location: Rocky River, OH USA

Good question J murf

Al
TRex 450 V2

12-07-2007 03:25 AM

reiserrob2003
Senior Heliman
Location: Brockton, MA.

actually, im still here, yes i would like to be able to switch between battery power and the power supply with as little effort as possible.

12-12-2007 12:10 AM

Avropilot
Senior Heliman
Location: Nashville, Tennessee

A bosh relay should do the trick. A diode would work also. how will you be charging the hobby battery?

12-13-2007 09:59 PM

J murf
Senior Heliman
Location: Wexford Ireland

aaaah your back again you mean.. its 12 days since your original post, on holidays i bet.anyway you need to get a relay with two connections to the coil and a change over switch contact .n/o and n/c .the way it works it this. when the relay is at rest one set of contacts are closed and this you use to connect your battery to your chargers.when the power supply is switched on it sends electricity to the relay coil and the first set of contacts opens and disconnects the battery the other one closes this you use to connect the power supply to the chargers and when you switch off the power supply the relay drops out and again connects battery to chargers again all done fully automatic by means of the relay switching when it gets power from the power supply.

12-13-2007 10:45 PM

J murf
Senior Heliman
Location: Wexford Ireland

ooops. just read your profile i would say an aircraft mechanic wont need info on how a relay works..

12-13-2007 10:50 PM

reiserrob2003
Senior Heliman
Location: Brockton, MA.

I' think I'll try the relays and see what happens.

12-26-2007 05:58 PM

J murf
Senior Heliman
Location: Wexford Ireland

way to go i think any problems let us know

12-26-2007 10:01 PM

J murf
Senior Heliman
Location: Wexford Ireland

alternatvely you could use a double pole double throw toggle switch .i know it wont be automatic but it,s a simple solution..