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.
What does the JR to JST switch do?
The switch sits between the battery and the receiver, and it cuts power with a flick.
The switch has 1 input for the battery and 1 output for the receiver.
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. The adapter set in this guide covers 2S to 6S packs, so the two parts cover most models.
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.
Quick comparison
| 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 |
Steps
- 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.
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.
Parts used
JR/Futaba to JST Switch Connector, 2 and 3 Wire, $6.99
JST to JST-XH Balance Adapter Set, 2S-6S, $5.99
2S JST-XH Balance Connector Saver, 5-Pack, $4.50
4S JST-XH Balance Connector Saver, 5-Pack, $4.50
Related buying guides on Quality RC Parts
How to Wire an RC Receiver Switch with a JR Futaba Plug
How to Choose JST and Balance Connectors for RC Packs
How to Choose Connectors and Wiring for Your RC Build
Browse all the guides on the Quality RC Parts Drone Guides hub, or start at the Quality RC Parts store.
Sources
Quality RC Parts stocks parts in New York, USA and ships in-stock orders in 1-2 business days.
Last updated: 2026-11-11.