JST Female to 2.1mm Barrel Connector
by RMRC

Bridge the gap between your small-scale lithium-polymer flight packs and standard base station hardware with the RMRC JST Female to 2.1mm Barrel Connector Adapter. Measuring a tidy 10cm (approximately 4 inches) in length, this pre-assembled, high-quality power link provides a direct path to route energy from a standard mini JST-equipped battery into electronic components that rely on an industrial barrel socket. Designed with a standard center-positive configuration, it eliminates the need for messy, improvised bench wiring or unsafe field splicing, ensuring absolute polarity security for your sensitive electronics.

This highly practical power transition cord fulfills critical integration roles across several aerospace and prototyping sectors. In the RC hobby and FPV market, it acts as a perfect plug-and-play adapter to run analog or digital video receivers, FPV monitors, and ground station tracking gear directly off small, lightweight auxiliary LiPo packs. For the educational and STEM robotics market, it provides students with a safe, standardized method for funneling battery power directly into Arduino boards, custom development shields, and peripheral test benches without exposing live bare wire leads. For sUAS contractors, enterprise drone builders, and government field testing programs, this cable operates as a highly repeatable, robust surrogate prototyping line—ideal for setting up remote telemetry links, supplying power loops to temporary payload pods, or feeding diagnostic sensors during hardware-in-the-loop (HIL) bench mapping.

Key Features:

• Seamless Power Adaptability: Natively transitions a standard mini JST plug directly to a universal 2.1mm barrel output socket.

• Center-Positive Standard: Wired to match the global industry standard for center-positive electronics, preventing reverse-polarity damage to your components.

• Compact 10cm Length: Provides just enough length to cleanly manage connections without introducing excessive cable slack, resistance, or unnecessary mass.

• Pre-Assembled and Molded: Features heavy-duty strain relief guards at both plug intersections to withstand repeated insertion and removal cycles in the field.

• High-Flex Insulation: Features a flexible wire sheath that routes easily through tight base station brackets or field-pack enclosures.

Specifications:

• Manufacturer: RMRC

• Battery End Connector: JST Female (Accepts matching JST Male battery plugs)

• Output End Connector: 2.1mm DC Barrel Connector (Center-Positive)

• Total Assembly Length: 10 cm / approx. 4 inches

• Compatibility: Natively powers video receivers (such as 900MHz/1.3GHz setups), portable FPV monitors, micro base stations, and development microcontrollers.

What is Included:

• (1) 10cm JST Female to 2.1mm Center-Positive Barrel Connector Adapter

Recommended Items & Needed to Complete (Available at ReadyMadeRC): To maximize your field ground station assembly or power management grid, consider exploring these matching options from ReadyMadeRC:

• High Performance Receivers: Use this adapter to seamlessly power long-range analog backbones like the RMRC 900MHz-1.3Ghz High Performance Receiver with Custom Tuner.

• Signal Cleanliness: Prevent interference across your transmission paths by adding a VAS 433/1.3 Notch Filter to your setup.

• Alternative Power Paths: Check out the XT60 Male to 2.1mm Barrel Connector adapter for larger ground installations operating on main flight packs.

• Charging Infrastructure: Streamline your workbench charging cycles with the RMRC Squid Multiple Charge Harness.