How to assemble an ARF RC aircraft step by step
A general ARF assembly workflow for many aircraft: dry fit, hinges, servo installation, power setup, CG, control checks and first-flight preparation.
S120 USB-C Smart Charger 1x20W
Prices are intentionally not displayed on the site.
Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
S120 USB-C Smart Charger 1x20W is a Spektrum product intended for aircraft, helicopter, sailplane or multirotor radio installations where reliable control and setup clarity matter. This page presents the practical buying information a customer needs before ordering: fit, SKU, image, category, specifications and usage advantages.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
Key Advantages
- Organized under the Spektrum Smart charging range.
- Intended for aircraft, helicopter, sailplane or multirotor radio installations where reliable control and setup clarity matter.
- Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Includes local product imagery and structured specifications for easier comparison inside RC-MODEL.
- Spektrum Smart compatibility is highlighted where relevant for batteries, chargers, ESCs or telemetry-aware systems.
Core Specifications
- Manufacturer: Spektrum
- Brand: Spektrum
- Product Code: SPMXC1020
- Product Family: Spektrum Smart charging range
- Application: Only compatible with Spektrum SMART batteries
- Compatibility Focus: Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Spektrum Category: Airplanes / Parts, Electronics & Accessories / Chargers
- Input Voltage: 5-12VDC USB charge port, USB type C cable included, power supply required
- Battery Balance Connector: JST_XH
- Battery Type: Smart Only, LiPo (3.7V per cell), Smart NiMH (1.2V per cell)
- Charge Protection Circuitry: Yes
- LiPo Compatibility: 2S, 3S
- Maximum Charge Rate: 1 to 2 Amps
- Number of Cells: 2-3 cell (LiPo), 6-7 cell (NiMH)
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
Servo selection: torque, speed, gears and voltage
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
How to balance an RC aircraft and find the correct CG
One of the most important setup guides: find the CG, install the flight battery, balance the aircraft and avoid nose-heavy or tail-heavy surprises.
Mandatory pre-flight checks for safer RC flying
A repeatable inspection routine for control direction, radio range, failsafe, battery, fasteners, propeller, CG and field readiness.
How to perform the first test flight of an RC aircraft
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPMXC1020 |
| Spektrum Category | Airplanes / Parts, Electronics & Accessories / Chargers |
| Product Family | Spektrum Smart charging range |
| Application | Only compatible with Spektrum SMART batteries |
| Compatibility Focus | Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering. |
| Battery Type | Smart Only, LiPo (3.7V per cell), Smart NiMH (1.2V per cell) |
| Number of Cells | 2-3 cell (LiPo), 6-7 cell (NiMH) |
| Input Voltage | 5-12VDC USB charge port, USB type C cable included, power supply required |
| Product Height | 0.55" (14mm) |
| Product Length | 2" (51mm) |
| Product Width | 2" (51mm) |
| Programmable | No |
| Technology | Smart |
| Output Connector | IC3 |
| Battery Balance Connector | JST_XH |
| Maximum Charge Rate | 1 to 2 Amps |
| Charge Protection Circuitry | Yes |
| Software Updates | Yes |
| Part Type | Electronics |
| Output | Up to 2A (depending on Power Supply and Battery) |
| LiPo Compatibility | 2S, 3S |
| Number of Output Ports | 1 |
| Selectable Charge Rate | No |
| Thermal Protection | Yes |
| Reverse Polarity Protection | Yes |
| Power (watts) | 20 - 49W |
| Power Source | USB |
| USB Power out | No |
Tags: Spektrum, SPMXC1020, Spektrum Smart charging range, Spektrum Catalog, Spektrum Smart Technology, Spektrum Chargers, Spektrum Smart Chargers, Spektrum Aircraft Electronics, RC-MODEL