How to Wire an RC Receiver Switch with a JR Futaba Plug
An RC receiver switch cuts power with a flick, so you never unplug the battery to stop the model. The JR to JST switch at $6.99 fits Futaba and JR systems in 2-wire and 3-wire versions. The JST to JST-XH adapter set at $5.99 covers 2S through 6S packs on a standard balance charger, over 20AWG wire.
Quick facts
| Fact | Value |
|---|---|
| Switch | JR to JST, 2 and 3 wire, $6.99 |
| Switch fits | Futaba and JR systems |
| Adapter | JST male to JST-XH, 2S-6S, $5.99 |
| Adapter wire | 20AWG throughout |
| Switch versions | 4 configurations |
| Use | RC cars, boats, and planes |
What does the JR to JST switch do?
The switch sits between the battery and the receiver, and it cuts power with a flick.
You stop the model without unplugging the battery, which saves wear on the connectors.
The switch at $6.99 fits Futaba and JR systems, for RC cars, boats, and planes.
Which switch version fits your receiver?
The listing offers 4 configurations: JR to JST, JR 2-wire, JR 3-wire, and JST 2-wire.
A 2-wire switch carries power only, while a 3-wire switch adds a signal wire.
Pick the version that matches the plug on your receiver and battery.
How does the JST to JST-XH adapter help?
The adapter set turns a JST male balance tap into a JST-XH plug.
It covers 2S through 6S packs, so one set charges every common pack size.
The wire measures 20AWG throughout, so it suits standard balance charging.
How do balance connector savers help?
A balance connector saver plugs onto your battery balance lead and gives you a bigger grip.
The bigger grip means you pull the saver, not the wires, so the leads last longer.
The 2S and 4S savers come in 5-packs, so one pack covers several batteries.
What did we check on the bench?
We matched the 4 switch configurations to the JR to JST switch listing.
We matched the 2S to 6S range and the 20AWG wire to the adapter listing.
We counted 1 image on the switch listing and 2 images on the adapter listing.
How the options compare
| Part | From | To | Covers | Price |
|---|---|---|---|---|
| Receiver switch | JR or Futaba | JST | 2-wire and 3-wire | $6.99 |
| Balance adapter | JST male | JST-XH | 2S-6S | $5.99 |
How do you wire a receiver switch?
- Pick the switch version for your receiver plug.
- Plug the battery lead into the switch input.
- Plug the switch output into the receiver.
- Mount the switch where you can reach it on the model.
- Flick the switch and check the receiver powers off.
Parts that fit this guide
In-stock parts ship from the New York, USA warehouse in 1-2 business days. Prices below are the live store prices we verified on November 11, 2026.
JR/Futaba to JST Switch Connector, 2 and 3 Wire ($6.99)
JR to JST switch connector at $6.99. It is an RC receiver power switch for Futaba and JR systems, in 2-wire and 3-wire versions for cars, boats, and planes.
JST to JST-XH Balance Adapter Set, 2S-6S ($5.99)
JST to JST-XH balance adapter set at $5.99. It adapts JST balance taps to JST-XH chargers across 2S to 6S, over 20AWG wire.
Related parts: 2S JST-XH Balance Connector Saver, 5-Pack: 2S JST-XH balance connector saver, 5-pack, with a bigger grip for your battery leads.; 4S JST-XH Balance Connector Saver, 5-Pack: 4S JST-XH balance connector saver, 5-pack, sized for 4S balance plugs..
Shop the full range: Connectors and Wiring at Quality RC Parts. See also: Related guide.
Frequently asked questions
Do I need a switch on every model?
No. A switch suits models where the battery stays plugged in between runs. Unplug the battery for storage.
What is the difference between 2-wire and 3-wire?
A 2-wire switch carries power only. A 3-wire switch adds a signal wire. Match the version to your receiver.
Will the adapter fit my charger?
It fits chargers with a JST-XH balance port. It covers 2S through 6S packs.
Can I leave the battery plugged in with the switch off?
No, not for storage. A switch cuts power to the receiver, but it does not replace unplugging the battery for storage.
Sources
Last updated: November 11, 2026.