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[Black Shoe]

I've been using a 4.8V battery for my Spektrum AR6200. This battery has three fine wires connected to the female plug designed to fit the Rx. I'd like to go to a 7.2V battery, (more cells, longer life between charges, weight is not an issue, and the manual states the voltage can go to 9.2.) My question is; the 7.2V batt only has two much heavier gauge wires. Do I need a "signal" wire to power the RX? How should I go about this?
Thanks 

[TheLongBuild]

Does it work like that ? I thought increasing the mAH would be the way to go. ?

[Black Shoe]

Does it work like that ? I thought increasing the mAH would be the way to go. ?

Perhaps it doesn't work exactly like that, but the 7.2V batt provides 4500 mAH, and the 4.8V batt provides 1500 mAH, so by increasing the voltage by a third, the mAH can be tripled. seems fair to me. Now, about those wires.................

[barriew]

No - the Rx battery does not require a signal wire. I run my Spektrum Rxs with just two wires from the battery.


Barrie

[malcolmfrary]

The RX might be happy with the increased voltage, whatever is plugged into the RX, and therefore drawing power through it, might not.  The presence of the third wire is just a way to stop you plugging the battery into the RX the wrong way round and doing damage.  Other makers use a two pin system but with a shaped plug and matching hole in the RX case to do the same job.
An adapter is easy enough to make being the right kind of connector each end joined by two wires, but I would look at it as an expensive way to risk breaking my other gear.  Why not just go for a 4.8 volt pack with a higher mAH rating?  It is the mAH rating that gives the run time.

[Black Shoe]

.

No - the Rx battery does not require a signal wire. I run my Spektrum Rxs with just two wires from the battery.



Barrie

Thank you! Useful info

The RX might be happy with the increased voltage, whatever is plugged into the RX, and therefore drawing power through it, might not.  The presence of the third wire is just a way to stop you plugging the battery into the RX the wrong way round and doing damage.  Other makers use a two pin system but with a shaped plug and matching hole in the RX case to do the same job.
An adapter is easy enough to make being the right kind of connector each end joined by two wires, but I would look at it as an expensive way to risk breaking my other gear.  Why not just go for a 4.8 volt pack with a higher mAH rating?  It is the mAH rating that gives the run time.

Thank you. I hadn't thought about "downstream" of the Rx. Thanks for explaining the "why" of the issue.